T/ZFHB 04-2024 Active Group standards

T/ZFHB 04-2024 Reinforced Poly-tetrafluoroethylene (PTFE) fibers

Publish Date: 2024-12-28 Implement Date: 2025-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZFHB 04-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Chemical fibers

ICS Name: Artificial fibers

Publish Date: 2024-12-28

Implement Date: 2025-01-01

Scope

This standard specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation, and storage for recycled polytetrafluoroethylene (PTFE) staple fibers. This standard applies to PTFE staple fibers with a Marklon value of 3.0-7.0, produced from blends of PTFE and recycled PTFE. Performance of recycled PTFE staple fibers 1 Marklon value 3.0–7.0 2 Line density (fineness), dtex 1.5–7.0 3 Breaking strength (tensile strength), cN/dtex ≥2.6 4 Dry heat shrinkage rate (250℃, 30min), % ≤3.5 5 Length, mm 30–52 6 Length deviation rate, % 8.0 7 Curling number, (pcs/25mm) 4.0–8.0 8 Retention rate of strength against acid (60% H2SO4, 93℃, 24h) ≥95.0 9 Retention rate of strength against alkali (70% NaOH, 93℃, 24h) ≥95.0 10 Retention rate of strength against high temperature (250℃, 24h) ≥95.0