GB/T 7139-2023 Active National standards

GB/T 7139-2023 Plastics—Vinyl chloride homopolymers and copolymers—Determination of chlorine content

GB/T 7139-2023 Plastics—Vinyl chloride homopolymers and copolymers—Determination of chlorine content

Publish Date: 2023-08-06 Implement Date: 2024-03-01 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: GB/T 7139-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods for synthetic resins and plastics

ICS Name: Thermoplastic plastics

Publish Date: 2023-08-06

Implement Date: 2024-03-01

Pages: 14 pages

Scope

This document describes the method for determining the chlorine content in vinyl chloride homopolymers and copolymers. This document is applicable to the determination of chlorine content in vinyl chloride homopolymers and copolymers that do not contain plasticizers and additives. The determination of chlorine content in other chlorine-containing polymers that do not contain plasticizers and additives can be referenced for use.

Development Information

Word Count: 21 Thousand words Pages: 14 pages

Replace the following standards

GB/T 7139-2002 Plastics-Vinyl chloride homopolymers and copolymers—Determination of chlorine content

Referenced Standards

GB/T 9725-2007 Chemical reagent—General rule for potentiometric titration GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods

Adopt standards

ISO 1158:1998

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