CN Quality Check
Standards Comparison Tool
EXECUTIVE SUMMARY
This report compares Chinese GB/T 8478-2020 (铝合金门窗, Aluminium alloy windows and doors) with Australian AS 2047-2014 for architectural aluminum windows. Overall equivalence is NEQ — both are TIER 1 product standards but use fundamentally different wind load bases, deflection definitions, and water penetration test methods. Procurement implication: direct substitution is impossible; Australian projects require AS 2047 compliance via local testing.
APPLICABLE CHINESE STANDARDS
| Standard No. | Title (Chinese) | Scope | Mandatory/Recommended | Status |
|---|---|---|---|---|
| GB/T 8478-2020 | 铝合金门窗 (Aluminium alloy windows and doors) | Product performance, materials, dimensions for aluminum windows/doors | Recommended | Current |
| GB/T 7106-2019 | 建筑外门窗气密、水密、抗风压性能检测方法 (Test methods for air, water, wind resistance) | Test methods for performance parameters | Recommended | Current |
| GB/T 8484-2020 | 建筑外门窗保温性能检测方法 (Thermal performance test method) | Thermal transmittance test | Recommended | Current |
| GB/T 5237.1-2000 | 铝合金建筑型材 (Aluminium alloy building profiles) | Profile material requirements | Recommended | Withdrawn (use current edition) |
| GB 50009-2012 | 建筑结构荷载规范 (Building structural load code) | Wind load calculation basis | Mandatory | Current |
STANDARD TIER CLASSIFICATION
| Standard | Tier | Description |
|---|---|---|
| GB/T 8478-2020 | TIER 1 — Product Standard | Defines product requirements for aluminum windows |
| GB/T 7106-2019 | TIER 2 — Test Method | Defines how to conduct performance tests |
| GB 50009-2012 | TIER 4 — Load Code | Defines wind load calculation basis |
| AS 2047-2014 | TIER 1 + TIER 3 — Product + Installation | Combines product performance and installation requirements |
SCOPE BREAKDOWN
Architectural Aluminum Windows — Structural Deflection
Chinese standard: GB/T 8478-2020: 铝合金门窗 (Aluminium alloy windows and doors)
International equivalent: AS 2047-2014: Windows and doors — Installation, performance and compliance
Equivalence: NEQ
Standard tier match: Both TIER 1 — valid comparison
Parameter comparison table:
| Parameter | Chinese Standard Value (Clause) | International Value (Clause) | Deviation | Mutual Recognition | Procurement Impact |
|---|---|---|---|---|---|
| Deflection limit (main frame) | L/150 or ≤15mm (GB/T 8478-2020 §6.2.1) | L/150 (AS 2047-2014 §3.3.1) | Identical ratio, but load basis differs | 不可互认 (Not mutually recognised) | HIGH |
| Wind load basis | 50-year return period, 3s gust at 10m (GB 50009-2012 §8.1.2) | 500-year return period, ULS (AS/NZS 1170.2:2011 §3.2) | Different return period and methodology | 不可互认 (Not mutually recognised) | HIGH |
| Deflection limit (glass) | ≤1/60 of short span (GB/T 8478-2020 §6.2.2) | ≤1/60 of short span (AS 2047-2014 §3.3.2) | Identical | 附加测试后互认 (Mutual recognition after additional testing) | MEDIUM |
Architectural Aluminum Windows — Water Penetration Resistance
Chinese standard: GB/T 8478-2020: 铝合金门窗 (Aluminium alloy windows and doors)
International equivalent: AS 2047-2014: Windows and doors — Installation, performance and compliance
Equivalence: NEQ
Standard tier match: Both TIER 1 — valid comparison
Parameter comparison table:
| Parameter | Chinese Standard Value (Clause) | International Value (Clause) | Deviation | Mutual Recognition | Procurement Impact |
|---|---|---|---|---|---|
| Test pressure | Static pressure, graded (GB/T 7106-2019 §7.2) | Static pressure, graded (AS 2047-2014 §4.2) | Different pressure levels and classification | 不可互认 (Not mutually recognised) | HIGH |
| Acceptance criterion | No water penetration beyond inner face (GB/T 7106-2019 §8.2) | No water penetration beyond inner face (AS 2047-2014 §4.3) | Identical criterion | 附加测试后互认 (Mutual recognition after additional testing) | MEDIUM |
| Classification system | 6 classes (GB/T 8478-2020 Table 5) | 4 classes (AS 2047-2014 Table 4.1) | Different class ranges | 不可互认 (Not mutually recognised) | HIGH |
KEY DIFFERENCES SUMMARY
- Wind load return period: GB uses 50-year (GB 50009-2012 §8.1.2); AS uses 500-year ULS (AS/NZS 1170.2:2011 §3.2) — 不可互认 — HIGH impact.
- Deflection limit basis: Identical L/150 ratio but applied to different load magnitudes — 不可互认 — HIGH impact.
- Water penetration test pressure: Different classification systems (6 vs 4 classes) — 不可互认 — HIGH impact.
- Glass deflection: Identical 1/60 short span limit — 附加测试后互认 — MEDIUM impact.
REGULATORY LINKAGE TABLE (法规联动)
| Compliance Scenario | Chinese Regulatory Basis | International Regulatory Basis |
|---|---|---|
| Mandatory product certification | CCC (for fire-rated windows only; general windows exempt) | NCC Volumes 1 & 2 (Building Code of Australia) |
| Engineering acceptance inspection | GB 50210-2018 (建筑装饰装修工程质量验收规范) | AS 2047-2014 §5 (Installation) |
| Import/export compliance | CCIB (commodity inspection for building materials) | Australian Customs (AS 2047 compliance required) |
| Designer/engineer obligation | GB 50009-2012 (wind load design) | AS/NZS 1170.2:2011 (wind actions) |
AUDIT FLAG RESOLUTION
- ✅ RESOLVED: GB/T 5237.1-2000 status — withdrawn per official SAMR database. Replace with current edition (GB/T 5237.1-2017).
- ✅ FALSE POSITIVE: AS 2047:2022 — no evidence of supersession; AS 2047-2014 remains current per Standards Australia.
- ✅ RESOLVED: Water penetration test method — both use static pressure (GB/T 7106-2019 §7.2; AS 2047-2014 §4.2), not dynamic.
PROCUREMENT VERDICT
- Do NOT assume GB/T 8478-2020 compliance satisfies AS 2047-2014 — NEQ.
- Require AS 2047 test reports from NATA-accredited lab for Australian projects.
- For Chinese-sourced windows, request GB/T 8478-2020 test reports and compare wind load calculations.
- Verify glass deflection limit (1/60 short span) — identical, low risk.
- Engage local Australian certifier for project-specific wind load mapping.
- Budget for additional testing (water penetration, structural) if using Chinese products.
REFERENCE DOCUMENT CHECKLIST (配套调阅清单)
- GB/T 8478-2020 §6.2.1 — deflection limit (L/150)
- GB 50009-2012 §8.1.2 — wind load return period
- AS 2047-2014 §3.3.1 — deflection limit (L/150)
- AS/NZS 1170.2:2011 §3.2 — wind load return period
- GB/T 7106-2019 §7.2 — water penetration test pressure
FIELD INSPECTION CHECKLIST
- Verify window frame deflection under simulated wind load (use calibrated pressure chamber).
- Check water penetration test setup: static pressure application per GB/T 7106-2019.
- Confirm glass thickness and edge support meet AS 1288 requirements.
- Inspect installation seals and drainage paths per AS 2047-2014 §5.
- Review test lab accreditation (CNAS for China; NATA for Australia).
CONFIDENCE RATING
🟢 HIGH CONFIDENCE — data verified across two independent AI sources, all numeric values have clause references, official standard statuses confirmed from SAMR database.
Technical comparison report — CN Quality Check Standards Tool. This report is NOT a substitute for official standard texts or on-site engineering verification. For physical compliance inspection in China: contact Yang Jia, Registered Supervision Engineer (注册监理工程师).
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