GB/T 7690.3 — 增强材料纱线试验—断裂强力和伸长

GB/T 7690.3-2013 增强材料纱线试验—断裂强力和伸长. CNAS-accredited laboratory test standard.

Version reference only. No standard text.

GB

1033.1 1462 13657 5169.16 5349 228.1 GB 9274 1771 1452 5169.12 4618.2 GB/T13096

Testing: info@leisa.com

How to Apply GB/T 7690.3 in Inspection

Applying GB/T 7690.3 starts with confirming the edition named in the contract, the product scope, and any purchaser-specific additions. Material system, dimensions, pressure or temperature rating, manufacturing route, and service environment should be mapped to the clauses that actually apply. Before testing, the inspection and test plan should define sampling frequency, specimen conditioning, calibrated equipment, witness points, acceptance criteria, and retest rules. A traceable report records sample and batch identity, the method and edition used, environmental conditions, raw observations, calculations, measurement uncertainty where relevant, deviations, and the decision against each requirement. This evidence chain supports purchasing acceptance, manufacturing release, engineering qualification, and dispute resolution. This page is an aid to discovery and interpretation; the current official publication remains the controlling source whenever its wording differs from this summary.

The sampling plan determines the population represented by the conclusion. Incoming inspection, first-article approval, type qualification, and production release carry different frequencies and risk levels; one selected specimen cannot stand in for a batch. Before shipment, confirm specimen count, dimensional tolerances, machining and end treatment, conditioning, and transport protection. During review, consider dispersion, failure mode, and raw curves as well as the reported average. Any anomaly should be investigated under a predefined retest rule so that an independent reviewer can reproduce the final decision.