T/CPCIF 0148-2021 Active Group standards

T/CPCIF 0148-2021 Plastic, ultra-high flow rate polypropylene material: determination of melt volume flow rate (MVR) and melt flow rate (MFR)

Publish Date: 2021-10-20 Implement Date: 2022-01-21 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/CPCIF 0148-2021

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 method for determining the melt volume flow rate (MVR) of ultra-high flowability polypropylene materials under specified temperature and load conditions, as well as the method for calculating the melt mass flow rate (MFR). This document is applicable to the determination of the melt flow rate of polypropylene materials with a melt mass flow rate greater than 500 g/10 min. Main technical content: Under specified temperature and load conditions, the melt volume flow rate (MVR) is determined by extruding the molten material through a die with a specified length and inner hole diameter, and then converted into the melt mass flow rate (MFR) through calculation. To determine MVR, record the piston's displacement within a specified time or the time required for the piston to move a specified distance, and calculate the extrusion rate, expressed in cm3/10 min. Multiply the measured MVR value by the material's melt density to calculate MFR, expressed in g/10 min.

Development Information

Related Standards

GB/T 6595-1986 Replaced

GB/T 6595-1986 Test method for fish eye count of polypropylene resin

Publish Date: 1986-07-24

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

Publish Date: 1986-07-24

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

Publish Date: 1986-07-24

GB/T 8330-1987 Replaced

GB/T 8330-1987 Method for the determination of true density of ion exchange resins in wet state

Publish Date: 1987-11-15

GB/T 8331-1987 Replaced

GB/T 8331-1987 Method for the determination of bulk density of ion exchange resins in wet state

Publish Date: 1987-11-15

GB/T 8324-1987 Replaced

GB/T 8324-1987 Test method for bulk factor of moulding materials

Publish Date: 1987-12-01