GB/T 6595-1986
Replaced
T/CPCIF 0147-2021
Active
Group standards
T/CPCIF 0147-2021 Special material for polypropylene (PP) melt-blown filter used in masks
T/CPCIF 0147-2021 Special material for polypropylene (PP) melt-blown filter used in masks
Price:
$ 20.00
Basic Information
Standard Code:
T/CPCIF 0147-2021
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Chemical industry
ICS Name:
Thermoplastic plastics
Publish Date:
2021-10-20
Implement Date:
2022-01-21
Scope
Scope: This document specifies the terms and definitions, naming, requirements, test methods, inspection rules, marking and accompanying documents, packaging, transportation, and storage for polypropylene (PP) meltblown special materials used in the production of masks. This document is applicable to meltblown special materials used in the production of masks, which are modified from polypropylene using dibutyl peroxide (DTBP) and/or 2,5-dimethyl-2,5-di(tert-butyl peroxy) hexane (DBPH) as degradation agents as the main raw material. Main technical contents: Number Item Requirements PPH, Y, 1000 MPa PPH, Y, 1200 MPa PPH, Y, 1500 MPa 1.1 Particle appearance Black particles/piece/kg 0 1.2 Large and small particles/g ≤ 10 2 Melt flow rate (MFR)/(g/10 min) 1000 ± 60 1200 ± 70 1500 ± 80 3 Ash content (mass fraction) ≤ 0.025 4 Volatile matter (mass fraction) ≤ 0.25 5 Total residual peroxide/mg/kg ≤ 5.0 6 Molecular weight distribution 2.0–3.5 7 Odor/grade ≤ 4.0
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