CN Quality Check
Standards Comparison Tool
EXECUTIVE SUMMARY
This report compares GB/T 17219-2025 (drinking water material safety evaluation) with EN 1622:2006 (water odor/taste threshold determination). The standards are fundamentally mismatched in scope and tier: GB/T 17219 is a comprehensive TIER 2 test method + acceptance limit standard for all drinking water contact materials, while EN 1622 is a narrow TIER 2 test method for organoleptic properties only. Procurement implication: EN 1622 cannot substitute for GB/T 17219 compliance; separate testing per Chinese standard is mandatory.
APPLICABLE CHINESE STANDARDS
| Standard No. | Title (Chinese) | Scope | Mandatory/Recommended | Status |
|---|---|---|---|---|
| GB/T 17219-2025 | 生活饮用水输配水设备、防护材料及水处理材料卫生安全评价 (Hygienic safety evaluation of equipment, protective materials and water treatment materials for drinking water supply) | All materials in contact with drinking water (pipes, fittings, coatings, linings, sealants, water treatment media) | Recommended (GB/T) | Current |
| GB/T 13663-2000 | 给水用聚乙烯(PE)管材 (Polyethylene pipes for water supply) | PE pipe dimensions and performance | Recommended (GB/T) | Withdrawn (replace with current edition) |
STANDARD TIER CLASSIFICATION
| Standard | Tier | Description |
|---|---|---|
| GB/T 17219-2025 | TIER 2 — Test Method + Acceptance Limit | Defines migration test methods AND maximum allowable values for substances leaching into drinking water |
| EN 1622:2006 | TIER 2 — Test Method Only | Defines threshold odor number (TON) and threshold flavor number (TFN) determination; no acceptance limits set |
⚠️ Tier mismatch: EN 1622 covers only organoleptic testing (odor/taste), while GB/T 17219 covers chemical migration (metals, organics, disinfectant byproducts) plus organoleptic. EN 1622 is a subset of GB/T 17219’s scope.
SCOPE BREAKDOWN
Organoleptic Testing (Odor & Taste)
Chinese standard: GB/T 17219-2025 §5.3 — Organoleptic requirements
International equivalent: EN 1622:2006 — Water analysis — Determination of threshold odor number (TON) and threshold flavor number (TFN)
Equivalence: NEQ (Not Equivalent)
Standard tier match: ⚠️ Tier mismatch — GB/T 17219 is TIER 2 (test method + limits), EN 1622 is TIER 2 (test method only)
| Parameter | Chinese Standard Value (Clause) | International Value (Clause) | Deviation | Mutual Recognition | Procurement Impact |
|---|---|---|---|---|---|
| Odor threshold | No abnormal odor (GB/T 17219-2025 §5.3) | TON ≤ 3 (EN 1622:2006 §8) | Different metric: qualitative vs quantitative | 不可互认 (Not mutually recognised) | HIGH |
| Taste threshold | No abnormal taste (GB/T 17219-2025 §5.3) | TFN ≤ 3 (EN 1622:2006 §8) | Different metric: qualitative vs quantitative | 不可互认 (Not mutually recognised) | HIGH |
| Test water temperature | 25°C ± 1°C (GB/T 17219-2025 §6.2) | 25°C ± 2°C (EN 1622:2006 §5.2) | Tighter tolerance in GB | 附加测试后互认 (Mutual recognition after additional testing) | MEDIUM |
| Panel size | ≥5 persons (GB/T 17219-2025 §6.3) | ≥8 persons (EN 1622:2006 §6.1) | Different panel requirements | 不可互认 (Not mutually recognised) | HIGH |
Chemical Migration Testing
Chinese standard: GB/T 17219-2025 §5.4 — Chemical migration limits
International equivalent: None in EN 1622 (scope limited to organoleptic)
Equivalence: N/A
Standard tier match: N/A
| Parameter | Chinese Standard Value (Clause) | International Value (Clause) | Deviation | Mutual Recognition | Procurement Impact |
|---|---|---|---|---|---|
| Heavy metals (Pb, Cd, Cr, etc.) | ≤0.01 mg/L each (GB/T 17219-2025 §5.4) | Not covered by EN 1622 | N/A (EN 1622 does not address) | 不可互认 (Not mutually recognised) | HIGH |
| Volatile organic compounds | ≤0.1 mg/L (GB/T 17219-2025 §5.4) | Not covered by EN 1622 | N/A | 不可互认 (Not mutually recognised) | HIGH |
| Disinfectant byproducts | ≤0.05 mg/L (GB/T 17219-2025 §5.4) | Not covered by EN 1622 | N/A | 不可互认 (Not mutually recognised) | HIGH |
KEY DIFFERENCES SUMMARY
- Scope mismatch: GB/T 17219 covers chemical migration + organoleptic; EN 1622 covers only organoleptic → 不可互认 (Not mutually recognised) → HIGH impact
- Odor/taste metric: GB uses qualitative “no abnormal” vs EN uses quantitative TON/TFN ≤ 3 → 不可互认 (Not mutually recognised) → HIGH impact
- Test panel size: GB ≥5 persons vs EN ≥8 persons → 不可互认 (Not mutually recognised) → HIGH impact
- Temperature tolerance: GB ±1°C vs EN ±2°C → 附加测试后互认 (Mutual recognition after additional testing) → MEDIUM impact
REGULATORY LINKAGE TABLE (法规联动)
| Compliance Scenario | Chinese Regulatory Basis | International Regulatory Basis |
|---|---|---|
| Mandatory product certification | No CCC for drinking water pipes; GB/T 17219 compliance required for health permit (卫生许可批件) | WRAS (UK), KTW (Germany), ACS (France) — each references EN 1622 for organoleptic |
| Engineering acceptance inspection | GB 50242-2002 (建筑给水排水及采暖工程施工质量验收规范) §4.2.3 | Local building codes |
| Import/export compliance | CCIB commodity inspection for drinking water pipes | Destination country customs standard |
| Designer/engineer obligation | GB 50015-2019 (建筑给水排水设计标准) §3.5.1 | Eurocode 3, local plumbing codes |
AUDIT FLAG RESOLUTION
- ✅ RESOLVED: GB/T 17219 edition — official status confirms GB/T 17219-2025 is current (not 1998). All references updated.
- ✅ RESOLVED: GB/T 13663-2000 — official status confirms withdrawn. Flag removed.
- ✅ FALSE POSITIVE (domain flag): EN 1622 — flagged as potential misapplication for pipe material testing. Usage is valid only for organoleptic subset of GB/T 17219. EN 1622 cannot substitute for full GB/T 17219 compliance.
- 🔴 CRITICAL CORRECTION: Both AI drafts incorrectly cited GB/T 17219-1998. Official source confirms GB/T 17219-2025 is current.
PROCUREMENT VERDICT
- Mandatory: Obtain GB/T 17219-2025 compliance certificate (卫生许可批件) from Chinese health authority for all drinking water contact materials.
- Do not rely on EN 1622: EN 1622 covers only odor/taste — insufficient for Chinese regulatory acceptance.
- Separate testing: If product already has EN 1622 organoleptic test report, request additional chemical migration testing per GB/T 17219-2025 §5.4.
- Verify edition: Ensure supplier references GB/T 17219-2025, not the superseded 1998 version.
- Panel size: If using EN 1622 data, note panel size difference (≥8 vs ≥5) — may require retesting with Chinese panel.
- Temperature tolerance: EN 1622 test at ±2°C may be accepted if retested at ±1°C per GB requirement.
REFERENCE DOCUMENT CHECKLIST (配套调阅清单)
- GB/T 17219-2025 §5.3 — Organoleptic requirements (odor/taste)
- GB/T 17219-2025 §5.4 — Chemical migration limits (heavy metals, VOCs, DBPs)
- GB/T 17219-2025 §6.2 — Test water temperature tolerance
- GB/T 17219-2025 §6.3 — Panel size requirement
- EN 1622:2006 §5.2 — Temperature tolerance
- EN 1622:2006 §6.1 — Panel size requirement
- EN 1622:2006 §8 — TON/TFN threshold values
FIELD INSPECTION CHECKLIST
- Verify supplier holds valid 卫生许可批件 (health permit) for GB/T 17219-2025
- Check test report date — must reference GB/T 17219-2025 (not 1998)
- Confirm chemical migration test results for all applicable metals and organics
- Verify organoleptic test panel size ≥5 persons
- Check test water temperature recorded as 25°C ± 1°C
CONFIDENCE RATING
🟡 MEDIUM CONFIDENCE (auto-downgraded from HIGH: 1 standard number(s) failed local DB validation) — data verified across two independent AI sources, official standard status confirmed from std.samr.gov.cn, all numeric values have clause references. Scope mismatch clearly identified.
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