GB/T 6595-1986
Replaced
T/SGX 008-2020
Active
Group standards
T/SGX 008-2020 Medical Mask Melting-Spun Polypropylene (PP) Material
T/SGX 008-2020
Price:
$ 20.00
Basic Information
Standard Code:
T/SGX 008-2020
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Synthetic resins and plastics
ICS Name:
Thermoplastic plastics
Publish Date:
2020-05-15
Implement Date:
2020-06-15
Scope
Scope: This standard specifies the terms and definitions, technical requirements, test methods, inspection rules, marking and packaging, transportation, and storage of polypropylene (PP) materials specifically for melt-blown medical masks. This standard applies to polypropylene materials specifically for melt-blown medical masks, which are mainly made from polypropylene and modified by melt-blending with organic peroxides such as dibutyl peroxide (DTBP) and 2,5-dimethyl-2,5-dibutyl peroxide (DBPH). Main technical contents: Table 1 - Technical requirements for polypropylene materials specifically for melt-blown medical masks. Testing items Unit Technical indicators 1 Particle appearance Black particles g/kg 0 Large and small particles g/kg ≤30 2 Melting point ℃ 165±33 3 Density g/cm3 0.90±0.02 4 Melt flow rate g/10min 1500±100 5 Ash content (mass fraction) % ≤0.06 6 Volatile matter (mass fraction) % ≤0.15 7 DTBP residue mg/kg ≤4.08 8 Molecular weight distribution /2.0-3.5 9 Odor level ≤3 10 Hexane extract % (w/w) ≤6.4 11 Xylene extract % (w/w) ≤9.8
Development Information
Related Standards
GB/T 6598-1986
Active
GB/T 6598-1986 Determination of weight-average molecular weight of polystyrene standards by low angle laser light scattering method
GB/T 6599-1986
abolished_transferred
GB/T 6599-1986 Determination of molecular weight averages and molecular weight distribution of polystyrene standards by steric exclusion chromatography
GB/T 8330-1987
Replaced
GB/T 8330-1987 Method for the determination of true density of ion exchange resins in wet state
GB/T 8331-1987
Replaced
GB/T 8331-1987 Method for the determination of bulk density of ion exchange resins in wet state
GB/T 8324-1987
Replaced