How do you translate an ISO 105-C06:2010 colour-fastness test report when it contains laundering method codes, colour-change grades, staining grades and different adjacent fabrics? Textile exporters, garment buyers, testing laboratories, sourcing managers and professional translators need to preserve exactly which fabric was washed, which controlled treatment was used, and which observations led to a purchase decision.
This focused translation guide shows how to translate domestic and commercial laundering colour-fastness evidence across languages without confusing a grade of 4–5 with a percentage, replacing staining with fading, or describing a severe laboratory treatment as an ordinary home wash. The search intent is practical: correctly translate an ISO 105-C06 report or certificate for international textile purchasing and quality control, rather than offering a general course on translation or fabric care.
ISO identifies ISO 105-C06:2010 as a published method for evaluating colour fastness to domestic and commercial laundering with defined reference washing systems. The ISO summary distinguishes single and multiple treatments and explains limitations involving optical brighteners and detergent systems. Those boundaries belong in the bilingual report alongside specimen identity, the actual condition and the observed change or staining scores.
The scope of this practical translation guide
A colour-fastness grade is a description of a specimen’s performance in a particular test condition. It is not an unconditional forecast of real-world appearance, a complete care label, a guarantee against every detergent or a substitute for a buyer’s signed specification. The evidence is reproducible only when its context is preserved. This article provides original educational interpretation, not the proprietary procedural wording of an ISO standard.
The actual measurement and what a score means
1. What a colour-fastness result measures
A laundering colour-fastness test evaluates whether a textile’s original colour changes and whether it stains adjacent material under a specified laboratory washing treatment.
The dangerous shortcut is simple: Never recast a result as proof that a garment will never fade or bleed in actual use; standardized tests simulate bounded conditions. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A dyed cotton sample and the adjacent white multifibre fabric yield separate observations. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
2. Reference document
ISO 105-C06:2010 is the published part addressing colour fastness to domestic and commercial laundering; the edition named on an older certificate must be reproduced exactly.
The dangerous shortcut is simple: Do not quietly replace an older method reference with the latest edition simply because the translation is prepared today. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Keep ISO 105-C06:2010 and the source laboratory’s issue date. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
3. Why S and M matter
The standard distinguishes single S treatments and more severe multiple M treatments; the method code is part of the test condition rather than a decorative suffix.
The dangerous shortcut is simple: Removing S or M can make unlike wash exposures appear comparable. One multiple method cannot automatically be described as exactly five household washes. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Report the original S or M designation with its method code. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
4. Laboratory washing versus household reality
A reference method controls chemistry and mechanical action in ways that ordinary appliances, garment loads and consumer detergents may not repeat.
The dangerous shortcut is simple: Commercial washing instructions and colour-fastness laboratory test conditions should not be treated as the same type of document. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A test result does not dictate every acceptable washer programme. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
5. Colour change versus staining
Colour change concerns the tested specimen itself, whereas staining concerns transferred colour on adjacent materials; they are distinct endpoints.
The dangerous shortcut is simple: A report with high colour-change grade but lower staining grade must not be summarized as uniformly high fastness. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Two different grades may appear in adjacent columns. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
6. Grey scale for change
Laboratories may use a reference grey scale to grade colour change, commonly on a 1-to-5 scale with intermediate steps. The intended scale and observation belong in the result.
The dangerous shortcut is simple: A grade of 4 is not 4 percent fade, nor an arithmetic value convertible to a colour-difference score without additional information. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Preserve ‘grade 4–5’ rather than rounding it to ‘5’. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
7. Grey scale for staining
Staining grades likewise characterize visible transfer relative to an appropriate reference scale, and can be recorded separately for different adjacent-fabric fibres.
The dangerous shortcut is simple: Do not substitute a colour-change grade for a staining result just because both use five-point grading language. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Staining on acetate and staining on wool may be recorded separately. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
8. Assessment direction
On the usual fastness grading interpretation, higher grade numbers indicate better retention or less staining, but a translator must first confirm which scale is explicitly identified.
The dangerous shortcut is simple: Avoid reversing the judgment with phrases such as ‘severity grade five’ if the source presents five as favourable. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A buyer’s pass threshold can differ by product or end use. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
Washing method and chemical environment
9. Intermediate grades
Notations such as 3–4 and 4–5 describe intermediate grades, not an interval estimate in the mathematical sense and not two replicate observations.
The dangerous shortcut is simple: Treat the hyphenated fastness grade as a fixed grading designation where the original laboratory uses it. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Do not split 4–5 into ‘four and five samples’. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
10. Method code preservation
The source may specify an alphanumeric C06 test condition or method variant, including temperature, mechanical treatment and detergent choice.
The dangerous shortcut is simple: Generic ‘washed according to ISO’ is not sufficiently precise when the actual certificate lists a specific test variant. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Keep the complete original method code without auto-formatting. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
11. Washing temperature
Temperature affects dye release and specimen response; a lab report may specify a controlled temperature or approved test condition.
The dangerous shortcut is simple: A target translation that changes °C to °F without the correct numerical conversion corrupts laboratory comparability. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: 60 °C must not become 60 °F. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
12. Test duration
Exposure time in the lab procedure is a condition, not a description of how long the finished garment can be worn or washed.
The dangerous shortcut is simple: Preserve minutes, timing stage and qualification if the method defines multiple phases. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A thirty-minute exposure should not be advertised as thirty wash cycles. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
13. Liquor ratio
When a report records bath volume relative to specimen mass, the relation describes laboratory conditions, not how much household detergent to pour into a machine.
The dangerous shortcut is simple: Translate mass and volume units separately, and preserve the numerical ratio in the same direction. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A ratio of bath to material is not interchangeable with material to bath. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
14. Reference detergent
Standardized reference detergent is used to make tests interpretable; the report may identify a detergent type or formulation category.
The dangerous shortcut is simple: Do not transform ‘reference detergent’ into a retail detergent brand or imply it matches every consumer product. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A detergent containing optical brightener may not be the one used. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
15. Bleach conditions
A washing system can involve particular bleaching chemistry or no bleach, depending on test method. The test condition should be reproduced without inventing missing ingredients.
The dangerous shortcut is simple: The sentence ‘laundered with reference detergent’ does not authorize translating it as ‘bleached at high temperature’. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Distinguish oxidizing bleach details only where they are documented. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
16. Optical brighteners
The ISO scope notes that its methods do not reflect the effect of optical brighteners present in commercial washing products.
The dangerous shortcut is simple: Do not claim that a grade predicts the visual effect of every fluorescent brightening agent in retail laundry powder. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A white fabric that looks brighter in use has a different optical issue. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
Specimen identity and visual assessment
17. Mechanical action
Agitation and friction contribute to loss or transfer of colour; the distinction between procedures may include mechanical severity.
The dangerous shortcut is simple: Translating a mechanical-action specification into simple ‘soaking’ can understate the physical treatment applied. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A test using mechanical action is not merely immersion. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
18. Adjacent fabric identity
Different fibre types can accept transferred dye differently, so the adjacent fabric or multifibre strip is part of the experimental context.
The dangerous shortcut is simple: Do not collapse all staining grades to one unspecified fabric if the report distinguishes fibres. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Cotton, nylon and polyester cells can show different grades. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
19. Main specimen composition
Fibre composition, blend, construction and finishing influence the tested material’s response. A bilingual report must keep the specimen description intact.
The dangerous shortcut is simple: A polyester–cotton blend should not become ‘pure polyester’ because the shortened term sounds simpler. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Retain composition percentages exactly as specified. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
20. Dyestuff and shade
Darker or more saturated shades may have different perceived change and staining behavior; the laboratory records the actual colourway or specimen identity.
The dangerous shortcut is simple: Avoid generalizing a navy specimen’s grade to every shade in a product collection. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: ‘Blue 04’ may be a specific lot shade identifier. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
21. Dye lot
A dyed-fabric batch, lot number or supplier roll code connects tested material to actual production. These strings often look like translatable words but function as identifiers.
The dangerous shortcut is simple: Never localize batch codes by changing letters to target-language initials. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Preserve LOT-C24-R7 in exactly its original form. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
22. Preconditioning
Specimens may be conditioned or prepared according to referenced procedures; such qualifiers help explain which physical state entered the test.
The dangerous shortcut is simple: Do not add ‘new and unused’ unless the testing record says so, because pretreatment can be central to interpretation. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Prewashed samples and untreated samples should remain distinct. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
23. Postwash drying
Drying and handling before visual assessment may affect the observed condition; descriptions of post-treatment should not be silently omitted.
The dangerous shortcut is simple: A phrase ‘assessed after drying’ is not equivalent to ‘assessed while wet’. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Keep the original timing of grading after the washing cycle. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
24. Lighting during assessment
Colour comparison depends on defined viewing practice, reference scale and lighting environment where specified.
The dangerous shortcut is simple: Translation cannot improve an unspecified evaluation method by claiming objective spectrophotometric proof if the source reports visual grading. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Visual grade and instrumental ΔE are not the same measurement. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
Contracts, buyer decisions and records
25. Observer variation
Two assessors may differ on borderline visual grades; an assessment policy or adjudication can matter for difficult shades.
The dangerous shortcut is simple: Do not promise mathematical precision beyond the stated grading system. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A grade 3–4 should remain the recorded grade despite subjective uncertainty. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
26. Replicate specimens
Several specimens or repeated observations provide more information than one swatch. Preserve how many specimens were tested and what the reported score represents.
The dangerous shortcut is simple: Replacing the minimum observed grade with an average can mask the weakest result. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Three swatches may not support a statement about the entire shipment. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
27. Acceptance rules
A garment specification may demand a minimum grade for colour change or staining. The laboratory result and contract threshold need different labels.
The dangerous shortcut is simple: Avoid stating that ISO 105-C06 universally imposes one pass grade for all textiles. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Sportswear and upholstery may have different purchase criteria. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
28. Fail, pass and conditional release
A quality report can distinguish measured grades, purchaser requirements, corrective action and shipment release decisions.
The dangerous shortcut is simple: Do not let the target-language ‘satisfactory’ imply a contractual release if only the lab describes a test result. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A buyer’s concession is not the same as passing every original requirement. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
29. Care labels
A laundering test result does not automatically authorize an icon or instruction on the finished garment’s care label; care advice draws on broader product evidence.
The dangerous shortcut is simple: Do not turn laboratory grade 4 into a universal ‘machine wash safe’ claim. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Temperature advice may need separate fabric shrinkage and appearance assessment. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
30. Colour bleeding complaints
A consumer complaint describing dye transfer is not itself a standardized test report, even when it uses words such as bleeding or fading.
The dangerous shortcut is simple: Translate the complaint faithfully and keep it separate from formal laboratory findings. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: ‘Colour ran in the sink’ is not an ISO grading result. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
31. Buyer communication
The reader often needs both a concise outcome and traceable conditions. The translation should include the method designation before any commercial interpretation.
The dangerous shortcut is simple: Do not market a single favourable grade as total compliance for a multicriteria purchase order. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: State which requirement was compared against which score. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
32. Spreadsheet fidelity
Reports with many fibres and grades require stable alignment of specimen, fibre type, score and comments during reformatting.
The dangerous shortcut is simple: A shifted cell can assign a nylon stain grade to cotton and alter an inspection decision. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Review each row after converting a PDF or image table. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
Translation assurance from source to release
33. Decimals and separators
Locale conventions can change comma and decimal usage; on a five-point scale, the grading syntax may be neither a decimal nor a range.
The dangerous shortcut is simple: Do not convert 4–5 into 4.5 unless the original actually records a numeric midpoint. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Keep commas in specimen IDs if they are identifiers rather than quantities. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
34. Unsupported equivalence
Different textile test standards, washing programmes, dyes and grading procedures are not automatically convertible merely because they share common words.
The dangerous shortcut is simple: A translator should retain the named standard and ask for a technical comparison if a client requests a different method’s grade. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A claim under one care-test method is not automatically an ISO 105-C06 result. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
35. Translation memory
A controlled glossary should distinguish fastness, change in colour, staining, adjacent fabric, reference detergent and grade. Each term carries a particular role.
The dangerous shortcut is simple: A machine translation system can be fluent but still confuse grading endpoints when they appear close together. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Flag colour and color spelling variants as editorial choices, not different properties. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
36. A back-translation test
Ask a second reviewer to restate specimen, wash method, temperature, colour-change grade and staining grades from the translation alone.
The dangerous shortcut is simple: If the reviewer cannot tell which number belongs to which fibre, the document is not ready, however elegant its sentences. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: A clear target-language table should reproduce the same decision. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
37. Unresolved fields
When the source lacks the detergent code, test variant or assessment scale, a translator can issue an explicit query instead of inserting the most common practice.
The dangerous shortcut is simple: Mark information missing in source rather than filling it from an unrelated published laboratory example. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Uncertain wash conditions must not become invented conditions. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
38. Release audit
The final file should preserve signatory, document number, report revision, test dates, sample count, methods, units, grades and all limitations.
The dangerous shortcut is simple: Run an independent numeric review and a technical-language review before external distribution. A reader outside the original laboratory often sees only the summary, so the exact subject of each adjective or numeral must be clear. Where the original uses a code or reference designation, retain it and translate the explanatory words around it; a helpful paraphrase is not permission to change the experimental condition.
Consider an everyday QA example: Release controls matter because a buyer may make a shipment decision from the translated report. Ask what this line would allow a buyer to conclude and what it would not. A faithful translated report keeps the distinction between observed change, transferred stain, test conditions, and a separate commercial acceptance rule. If the source is unclear, preserve the uncertainty or ask the laboratory; never manufacture a better-looking grade.
Case studies: where an accurate textile translation changes the decision
A retailer in one country orders navy school uniform fabric from a supplier in another. The bilingual report lists excellent colour retention but a lower staining grade against one adjacent fibre. If the translator labels both results ‘fade resistance’ the buyer might approve a fabric that transfers dye onto pale shirts. The right translation names colour change and staining separately, and it preserves the grade beside the correct adjacent fibre rather than averaging different properties into one quality claim.
A garment maker asks whether a test with a multiple-treatment code means five identical household washing cycles. The ISO scope says a multiple laboratory treatment may in some circumstances approximate a number of household or commercial launderings, but it is not a universal one-for-one conversion. The translation should reproduce the method code and explain the controlled severity, not promise an exact consumer lifetime. Marketing teams can then make claims only from the evidence their own quality system accepts.
A laboratory reports an intermediate grey-scale grade of 4–5. During localization, the editorial software silently converts a typographic dash into a minus sign and a spreadsheet formula interprets the text as subtraction. The final certificate displays negative one. That is not a grammar error but a data corruption incident. Grade designations must be protected as text in data transformation, with unit tests that compare every result against the signed source file.
A buyer’s specification requires minimum staining performance on several adjacent fibres. The test laboratory reports different grades for cotton, polyamide and polyester components. The translator must retain all those rows, even if one grade is less flattering. The buyer’s independent acceptance decision should identify whether the rule applies per fibre or as an aggregate. The translation service cannot invent an aggregation formula or silently omit the weakest component.
Finally, suppose a customer complaint alleges that a dress bled colour during a hot home wash with an oxygen-bleaching detergent. The manufacturer offers a C06 laboratory certificate under a specified reference detergent. These documents concern related but different exposures. The translated investigation should preserve that distinction so the quality team can decide whether additional testing is necessary, rather than claiming the certificate proves the complaint impossible.
Translation handover checklist
Read the source from the specimen identifier outward: confirm the dye lot, fabric composition, method code, S or M treatment, temperature, washing chemistry, colour-change grade, every adjacent-fibre staining grade, assessment context and report status. Compare the numbers and symbols in a separate QA pass. Then compare the commercial statements with the buyer’s original requirement. Final wording should neither intensify a claim nor quietly hide a disadvantageous observation.
Official method context: ISO 105-C06:2010. For wider language-learning routes, see Master Art of Translation, the Vocabulary Learning Hub and How English Works. These related resources support interpretation and vocabulary; the original laboratory document remains authoritative.