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Standards Comparison Report
GB/T 14576
EXECUTIVE SUMMARY
This report covers GB/T 14576-2009, the Chinese test method for combined colour fastness to light and perspiration (耐光、汗复合色牢度), compared against ISO 105-B07:2009. Both are TIER 2 test method standards with no tier mismatch. The standards are NEQ (not equivalent) due to differing test principles and exposure conditions, requiring additional testing for mutual recognition.
APPLICABLE CHINESE STANDARDS
| Standard No. | Title (Chinese) | Scope | Mandatory/Recommended | Status |
|---|---|---|---|---|
| GB/T 14576-2009 | 纺织品 色牢度试验 耐光、汗复合色牢度 (Textiles — Tests for colour fastness — Colour fastness to light and perspiration combined) | Test method for combined light/perspiration fastness | Recommended | Current |
| GB/T 8427-2019 | 纺织品 色牢度试验 耐人造光色牢度：氙弧 (Textiles — Tests for colour fastness — Colour fastness to artificial light: Xenon arc) | Xenon arc light fastness test method | Recommended | Current |
| GB/T 3922-2013 | 纺织品 色牢度试验 耐汗渍色牢度 (Textiles — Tests for colour fastness — Colour fastness to perspiration) | Perspiration fastness test method | Recommended | Current |
| ISO 105-B07:2009 | Textiles — Tests for colour fastness — Part B07: Colour fastness to light of textiles wetted with artificial perspiration | International equivalent test method | Recommended | Current |
STANDARD TIER CLASSIFICATION
| Standard | Tier | Description |
|---|---|---|
| GB/T 14576-2009 | TIER 2 — Test Method | Defines how to test combined light/perspiration fastness |
| ISO 105-B07:2009 | TIER 2 — Test Method | Defines how to test light fastness of perspiration-wetted textiles |
| GB/T 8427-2019 | TIER 2 — Test Method | Xenon arc light fastness method (referenced) |
| GB/T 3922-2013 | TIER 2 — Test Method | Perspiration fastness method (referenced) |
No tier mismatch — direct test-method-to-test-method comparison.
SCOPE BREAKDOWN
Combined light & perspiration fastness (耐光、汗复合色牢度)
Chinese standard: GB/T 14576-2009: 纺织品 色牢度试验 耐光、汗复合色牢度 (Textiles — Tests for colour fastness — Colour fastness to light and perspiration combined)
International equivalent: ISO 105-B07:2009: Textiles — Tests for colour fastness — Part B07: Colour fastness to light of textiles wetted with artificial perspiration
Equivalence: NEQ
Standard tier match: Both TIER 2 — valid comparison
| Parameter | Chinese Standard Value (Clause) | International Value (Clause) | Deviation | Mutual Recognition | Procurement Impact |
|---|---|---|---|---|---|
| Test principle | Simultaneous light + perspiration exposure (GB/T 14576-2009 §5) | Perspiration pre-treatment, then light exposure (ISO 105-B07:2009 §5) | Different test method (no direct comparison) | 不可互认 (Not mutually recognised) | HIGH |
| Light source | Xenon arc per GB/T 8427-2019 (GB/T 14576-2009 §6.1) | Xenon arc (ISO 105-B07:2009 §6.1) | Identical principle | 直接互认 (Direct mutual recognition) | LOW |
| Perspiration solution | Acid pH 5.5 / alkaline pH 8.0 per GB/T 3922 (GB/T 14576-2009 §6.2) | Artificial perspiration per ISO 105-E04 (ISO 105-B07:2009 §6.2) | pH values differ — Verify: ISO 105-E04 clause | 附加测试后互认 (Mutual recognition after additional testing) | MEDIUM |
| Black standard temperature | 40°C ± 2°C [Verify: GB/T 14576-2009 ~§7.1] | 45°C ± 3°C [Verify: ISO 105-B07:2009 ~§7.1] | +12.5% | 附加测试后互认 (Mutual recognition after additional testing) | MEDIUM |
| Assessment | Grey scale rating (GB/T 14576-2009 §9) | Grey scale rating (ISO 105-B07:2009 §9) | Identical | 直接互认 (Direct mutual recognition) | LOW |
KEY DIFFERENCES SUMMARY
- Test principle — CN applies light and perspiration simultaneously; ISO pre-treats with perspiration then exposes to light. Deviation: fundamentally different method. Verdict: 不可互认 (Not mutually recognised). Impact: HIGH.
- Black standard temperature — CN 40°C vs ISO 45°C. Deviation: +12.5%. Verdict: 附加测试后互认 (Mutual recognition after additional testing). Impact: MEDIUM.
- Perspiration solution pH — CN per GB/T 3922 vs ISO per ISO 105-E04. Deviation: verify exact pH values. Verdict: 附加测试后互认 (Mutual recognition after additional testing). Impact: MEDIUM.
REGULATORY LINKAGE TABLE (法规联动)
| Compliance Scenario | Chinese Regulatory Basis | International Regulatory Basis |
|---|---|---|
| Mandatory product certification | CNCA textile certification (CCC not applicable — textiles exempt) | Destination country textile labelling regulations |
| Engineering acceptance inspection | N/A for product standard comparison | N/A |
| Import/export compliance | CCIB commodity inspection (GB/T 14576-2009) | Destination customs textile standard |
| Designer/engineer obligation | N/A for product standard comparison | N/A |
AUDIT FLAG RESOLUTION
- ✅ RESOLVED: GB/T 14576-2009 is CURRENT (现行) per std.samr.gov.cn — no supersession note. Title confirmed: 纺织品 色牢度试验 耐光、汗复合色牢度.
- ✅ RESOLVED: GB/T 8427-2019 is CURRENT (现行) — no supersession note.
- ⚠️ UNRESOLVED: Black standard temperature values — verify against GB/T 14576-2009 §7.1 and ISO 105-B07:2009 §7.1.
- ⚠️ UNRESOLVED: Perspiration solution pH — verify against GB/T 3922-2013 and ISO 105-E04.
PROCUREMENT VERDICT
- Confirm which standard the buyer's target market requires — CN (GB/T 14576-2009) or international (ISO 105-B07:2009).
- If both required, conduct dual testing — results are NOT interchangeable.
- Verify black standard temperature and pH values against official texts before specifying test conditions.
- Request test reports from accredited labs (CNAS/CMA) citing the exact standard edition.
- For export to ISO markets, ensure lab uses ISO 105-B07:2009 methodology, not CN method.
- Document test method in purchase contracts to avoid disputes.
REFERENCE DOCUMENT CHECKLIST (配套调阅清单)
- GB/T 14576-2009 §7.1 — black standard temperature
- ISO 105-B07:2009 §7.1 — black standard temperature
- GB/T 3922-2013 §6.2 — perspiration solution pH
- ISO 105-E04 §6.2 — perspiration solution pH
FIELD INSPECTION CHECKLIST
- Verify lab accreditation (CNAS/CMA) covers GB/T 14576-2009.
- Confirm xenon arc lamp calibration records are current.
- Check perspiration solution preparation date and pH verification logs.
- Verify grey scale assessment is performed by trained assessors.
- Confirm specimen conditioning per standard atmosphere requirements.
CONFIDENCE RATING
🟡 MEDIUM — core data verified (standard status, tier classification, equivalence), but black standard temperature and pH values flagged for official text confirmation.
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This report is for reference only and does not constitute legal or engineering advice. Always verify against the current official standard text.