T/HZFZHX 001-2019 Active Group standards

T/HZFZHX 001-2019 Insulating fire-resistant fabric

Publish Date: 2019-11-25 Implement Date: 2019-12-01 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/HZFZHX 001-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Printing and dyeing products

ICS Name: Comprehensive analysis of textile fibers

Publish Date: 2019-11-25

Implement Date: 2019-12-01

Scope

Scope: This standard specifies the terms and definitions, basic requirements, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage, and quality commitments for anti-static flame-retardant fabrics. This standard applies to woven fabrics used in clothing for environments where there is a risk of electric shock, fire, and explosion. This standard does not apply to flame-retardant protective clothing fabrics used to resist power supply voltages and in fire rescue operations. Main technical content: Table 1 Anti-static technical requirements Test items Protection level indicators Washing frequency Point-to-point resistance/Ω Class A 1.0×105~1.0×107 100 times Class B 1.0×107~1.0×1010 5.3 Flame-retardant performance The flame-retardant performance shall meet the requirements of Table 2. Test items Protection level indicators Washing frequency Heat protection coefficient/TTP/(kW·s/) Class A Direct skin contact: ≥126 Skin and garment gap: ≥250 50 times Class B Continued burning time/s Class A ≤250 times Class B ≤2 Afterglow time/s Class A ≤250 times Class B ≤2 Damage length/mm Class A ≤50 50 times Class B ≤96 Melting and dripping Class A, B Not allowed — Table 2 Flame-retardant technical requirements 5.4 Physical and chemical properties The physical and chemical properties of the fabrics shall meet the requirements of Table 3. Table 3 Technical requirements for physical and chemical properties Test items Indicators Formaldehyde content/(mg/kg) ≤75 pH value 4.0~8.5 Breaking strength/N Before washing ≥450 Table 3 (continued) Breaking strength/N Before washing ≥450 After washing ≥400 Tear strength (before washing)/N Unit area mass ≤200g/≥25 Unit area mass >200g/≥35 Water permeability/[g/(·24h)] ≥6000 Bending length/cm ≤2.5 Air permeability/(mm/s) ＞30 Pilling/level ≥3 Wash-dimension change rate/% +2.0~–2.0 Thermal stability/% ≤5 Waterfastness/level Discoloration ≥4/Stain ≥3–4 Washfastness/level Discoloration ≥4/Stain ≥3–4 Dry-fri