CN Quality Check
Standards Comparison Tool
EXECUTIVE SUMMARY
This report covers GB/T 26945-2023, 建筑用金属面绝热夹芯板 (Metal-faced sandwich panels for building insulation), a TIER 1 product standard. The Chinese standard is MOD (Modified) relative to EN 14509:2013, with key deviations in fire classification, core density, and dimensional tolerances. Procurement implication: Fire performance certification under GB 8624-2012 is NOT directly interchangeable with EN 13501-1 — buyers must specify which classification system applies.
APPLICABLE CHINESE STANDARDS
| Standard No. | Title (Chinese) | Scope | Mandatory/Recommended | Status |
|---|---|---|---|---|
| GB/T 26945-2023 | 建筑用金属面绝热夹芯板 (Metal-faced sandwich panels for building insulation) | Product requirements for insulated panels | Recommended | Current |
| GB 8624-2012 | 建筑材料及制品燃烧性能分级 (Classification for burning behaviour of building materials) | Fire performance classes | Mandatory | Current |
| GB 8624-2025 | 建筑材料及制品燃烧性能分级 (Classification for burning behaviour of building materials) | Fire performance classes | Mandatory | Upcoming (effective 2027-01-01) |
| GB/T 9978.1-2008 | 建筑构件耐火试验方法 (Fire resistance tests for building elements) | Test method | Recommended | Current |
| GB 50016-2014 | 建筑设计防火规范 (Code for fire protection design of buildings) | Design code | Mandatory | Current |
STANDARD TIER CLASSIFICATION
| Standard | Tier | Description |
|---|---|---|
| GB/T 26945-2023 | TIER 1 — Product Standard | Defines product requirements for sandwich panels |
| EN 14509:2013 | TIER 1 — Product Standard | Defines product requirements for sandwich panels |
| GB 8624-2012 | TIER 4 — Classification Standard | Defines fire performance classes |
| GB/T 9978.1-2008 | TIER 2 — Test Method | Defines fire resistance test procedures |
FLAG: GB 8624-2012 (TIER 4) is referenced within GB/T 26945-2023 (TIER 1) for fire classification — this is valid as the product standard adopts the classification framework for its fire performance requirements.
SCOPE BREAKDOWN
Metal-faced sandwich panels (金属面绝热夹芯板)
Chinese standard: GB/T 26945-2023: 建筑用金属面绝热夹芯板 (Metal-faced sandwich panels for building insulation)
International equivalent: EN 14509:2013: Self-supporting double skin metal faced insulating panels — Factory made products — Specifications — ⚠️ verify newer edition
Equivalence: MOD
Standard tier match: Both TIER 1 — valid comparison
| Parameter | Chinese Standard Value (Clause) | International Value (Clause) | Deviation | Mutual Recognition | Procurement Impact |
|---|---|---|---|---|---|
| Core density | Verify: GB/T 26945-2023 ~§5.3 | Verify: EN 14509:2013 ~§5.2 | Different test methods | 附加测试后互认 (Mutual recognition after additional testing) | MEDIUM |
| Fire classification | GB 8624-2012 classes (GB/T 26945-2023 §6.4) | EN 13501-1 classes (EN 14509:2013 §5.3) | Different classification systems | 不可互认 (Not mutually recognised) | HIGH |
| Dimensional tolerances | Verify: GB/T 26945-2023 ~§5.2 | Verify: EN 14509:2013 ~§5.1 | Partial alignment with CN modifications | 附加测试后互认 (Mutual recognition after additional testing) | MEDIUM |
| Thermal insulation | 背火面平均温升 ≤140°C / 任意单点温升 ≤180°C [Verify: GB/T 9978.1-2008 ~§6.2] | Verify: EN 14509:2013 ~§5.4 | Different test methods | 附加测试后互认 (Mutual recognition after additional testing) | MEDIUM |
KEY DIFFERENCES SUMMARY
- Fire classification — GB 8624-2012 vs EN 13501-1 systems are not interchangeable. 不可互认 (Not mutually recognised). Impact: HIGH.
- Core density test method — Chinese national test standards differ from EN methods. 附加测试后互认 (Mutual recognition after additional testing). Impact: MEDIUM.
- Dimensional tolerances — Partial alignment with Chinese modifications. 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 | CCCF for fire-resistant panels | CE marking under CPR |
| Engineering acceptance inspection | GB 50016-2014 for fire design | Local building regulations |
| Import/export compliance | CCIB commodity inspection | Destination country customs |
| Designer/engineer obligation | GB 50210-2018 (建筑装饰装修工程质量验收标准) | Eurocode / local building code |
AUDIT FLAG RESOLUTION
- ✅ RESOLVED: GB 8624-2012 is CURRENT (现行) — no supersession note. GB 8624-2025 is upcoming (effective 2027-01-01).
- ⚠️ UNRESOLVED: EN 14509 edition currency — verify whether a newer edition exists.
- ⚠️ UNRESOLVED: Core density and dimensional tolerance values — verify against GB/T 26945-2023 §5.2–5.3.
PROCUREMENT VERDICT
- Specify fire classification system (GB 8624 vs EN 13501-1) in contract — do not assume interchangeability.
- Request test reports from CN-accredited labs for GB 8624 compliance.
- Verify EN 14509 edition currency before citing.
- Confirm core density values against official GB/T 26945-2023 text.
- For EU-bound projects, require dual certification (GB + EN).
- Check GB 8624-2025 transition timeline for future compliance.
REFERENCE DOCUMENT CHECKLIST (配套调阅清单)
- GB/T 26945-2023 §5.2 — dimensional tolerances
- GB/T 26945-2023 §5.3 — core density
- GB/T 26945-2023 §6.4 — fire classification
- EN 14509:2013 §5.1–5.4 — corresponding parameters
- GB 8624-2012 — fire class definitions
FIELD INSPECTION CHECKLIST
- Verify core material density via on-site sampling
- Confirm fire classification marking on product labels
- Check dimensional tolerances against declared values
- Inspect panel facing material thickness
- Verify factory test certificates match GB/T 26945-2023 requirements
CONFIDENCE RATING
🟡 MEDIUM — core data verified, multiple parameters flagged for official text confirmation (core density, dimensional tolerances, EN edition currency).
Need on-site compliance verification in China?
This report is an AI-assisted technical reference. For physical inspection, material testing, and official acceptance in China, contact Yang Jia directly.
Request an Inspection →