DB13/T 5088-2019
Active
T/NBSL 003-2021
Active
Group standards
T/NBSL 003-2021 Plastic Polypropylene (PP) Melt Blowing KN95 mask specific material
T/NBSL 003-2021 Plastic Polypropylene (PP) Melt Blowing KN95 mask specific material
Price:
$ 20.00
Basic Information
Standard Code:
T/NBSL 003-2021
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Synthetic materials
ICS Name:
The production process of the rubber and plastics industry
Publish Date:
2021-09-01
Implement Date:
2021-09-10
Scope
Main technical content: Table 1 Requirements for polypropylene (PP) meltblown mask special materials Serial No. Item Unit PPHY1100 PPHY1300 PPHY1500 PPHY1700 PPHY1900 1.1 Particle appearance Black particles/kg 0 1.2 Large and small particles g/kg ≤ 30 2 Melt flow rate g/10 min 1100 ± 100 1300 ± 100 1500 ± 100 1700 ± 100 1900 ± 100 3 Density g/cm3 0.89–0.934 Ash content (mass fraction) % ≤ 0.035 Volatile matter (mass fraction) % ≤ 0.26 Peroxide residue mg/kg ≤ 57 Molecular weight distribution -2.0–4.08 Odor No obvious odor Limits for harmful substances shall comply with Table 2. Table 2 Limits for Harmful Substances Unit: mg/kg Item Requirement Lead ≤ 50 Mercury ≤ 100 Cadmium ≤ 10 Hexavalent chromium ≤ 100 Polybrominated biphenyls ≤ 100 Polybrominated diphenyl ethers ≤ 100
Development Information
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