CN Quality Check
Standards Comparison Tool
EXECUTIVE SUMMARY
Query "GB/T 2802" is an invalid standard number — no such Chinese national standard exists. Both AI drafts correctly flagged this as unresolvable. The verified official standard is GB/T 28029.14-2026 (轨道交通电子设备 列车通信网络（TCN）第2-8部分：以太网一致性测试 — Railway electronic equipment TCN Part 2-8: Ethernet conformance testing), status CURRENT (现行). Procurement implication: any document citing "GB/T 2802" is defective; buyer must obtain the correct designation before proceeding.
APPLICABLE CHINESE STANDARDS
| Standard No. | Title (Chinese) | Scope | Mandatory/Recommended | Status |
|---|---|---|---|---|
| GB/T 28029.14-2026 | 轨道交通电子设备 列车通信网络（TCN）第2-8部分：以太网一致性测试 (Railway electronic equipment TCN Part 2-8: Ethernet conformance testing) | Ethernet conformance testing for train communication networks | Recommended (GB/T) | Current (现行) |
STANDARD TIER CLASSIFICATION
| Standard | Tier | Description |
|---|---|---|
| GB/T 28029.14-2026 | TIER 1 — Product/Test Standard | Defines conformance testing requirements for TCN Ethernet |
No tier misapplication flagged — only one standard identified.
SCOPE BREAKDOWN
Train Communication Network (TCN) Ethernet Conformance
Chinese standard: GB/T 28029.14-2026: 轨道交通电子设备 列车通信网络（TCN）第2-8部分：以太网一致性测试 (Railway electronic equipment TCN Part 2-8: Ethernet conformance testing)
International equivalent: IEC 61375-2-8 (edition year: Verify against official text)
Equivalence: Verify: GB/T 28029.14-2026 scope clause
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 scope | Verify: GB/T 28029.14-2026 §1 | Verify: IEC 61375-2-8 §1 | N/A (unverified) | 不可互认 (Not mutually recognised) | HIGH |
KEY DIFFERENCES SUMMARY
- Invalid standard number: "GB/T 2802" does not exist. Correct designation is GB/T 28029.14-2026. Deviation: N/A. Verdict: 不可互认 (Not mutually recognised). Impact: HIGH.
REGULATORY LINKAGE TABLE (法规联动)
| Compliance Scenario | Chinese Regulatory Basis | International Regulatory Basis |
|---|---|---|
| Mandatory product certification | N/A for GB/T (recommended) — verify if referenced by mandatory railway regulation | Verify: destination country railway authority |
| Engineering acceptance inspection | Verify: railway sector acceptance codes | Verify: local railway standards |
| Import/export compliance | CCIB commodity inspection (if applicable) | Destination country customs standard |
| Designer/engineer obligation | N/A for product standard comparison | N/A |
AUDIT FLAG RESOLUTION
- 🔴 CRITICAL CORRECTION: "GB/T 2802" is not a valid standard. Official registry (std.samr.gov.cn) confirms GB/T 28029.14-2026 as the correct designation. Both AI drafts correctly identified the number as invalid but failed to locate the actual standard.
PROCUREMENT VERDICT
- Reject any document citing "GB/T 2802" — it is invalid.
- Confirm the intended standard is GB/T 28029.14-2026 (TCN Ethernet conformance).
- Obtain official text from std.samr.gov.cn before specification.
- Verify IEC 61375-2-8 equivalence against Chinese text.
- Confirm whether GB/T 28029.14-2026 is referenced as mandatory in any railway procurement contract.
REFERENCE DOCUMENT CHECKLIST (配套调阅清单)
- GB/T 28029.14-2026 §1 — confirm scope and test coverage
- GB/T 28029.14-2026 §4 — conformance test requirements
- IEC 61375-2-8 (edition year) — equivalence basis
FIELD INSPECTION CHECKLIST
- Verify test laboratory accreditation for GB/T 28029.14-2026.
- Confirm equipment under test matches TCN Ethernet profile.
- Check test report date vs. standard publication date (2026).
- Verify certificate references correct standard number.
CONFIDENCE RATING
🔴 LOW — key parameter (standard identity) disputed/unverified; official text must be consulted before any procurement action.
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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