GB/T 25254-2022 Active National standards

GB/T 25254-2022 Poly-(tetra methylene ether glycol)(PTMEG) for industrial use

GB/T 25254-2022 Poly-(tetra methylene ether glycol)(PTMEG) for industrial use

Publish Date: 2022-04-15 Implement Date: 2022-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 25254-2022

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Synthetic resins and plastics

ICS Name: Comprehensive raw materials for rubber and plastics

Publish Date: 2022-04-15

Implement Date: 2022-11-01

Pages: 13 pages

Scope

This document specifies the classification and naming of industrial-grade polytetramethylene ether glycol (PTMEG), technical requirements, test methods, inspection rules, marking and accompanying documents, packaging, transportation, and storage. This document applies to industrial-grade PTMEG produced by the polymerization of tetrahydrofuran monomer.

Development Information

Word Count: 25 Thousand words Pages: 13 pages

Replace the following standards

GB/T 25254-2010 Poly-(tetra methylene ether glycol) (PTMEG) for industrial

Referenced Standards

GB/T 4472-2011 Detemination of density and relative density for chemical products GB/T 10247-2008 Methods of viscosity measurement 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 3143-1982 Color determination method of liquid chemicals (Hazen unit—platinum-cobalt scale) GB/T 6283-1986 Chemical products—Determination of water—Karl fischer method (general method) GB/T 6283-2008 Chemical products—Determination of water Karl·fischer method(general method) GB/T 6678-2003 General principles for sampling chemical products GB/T 6680-2003 General rules for sampling liquid chemical products 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 GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 21186-2007 Fourier transform infrared spectrometer GB/T 21186-2026 Fourier transform infrared spectrometers

Related Standards

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Publish Date: 1995-06-12

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Publish Date: 1995-06-12

GB/T 1844.2-1995 Replaced

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Publish Date: 1995-06-12

GB/T 1844.3-1995 Replaced

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Publish Date: 1995-06-12

GB/T 9865.1-1996 Replaced

GB/T 9865.1-1996 Rubber, vulcanized or thermoplastic—Preparation of samples and test pieces—Part1:Physical tests

Publish Date: 1996-10-28

GB/T 2918-1998 Replaced

GB/T 2918-1998 Plastics—Standard atmospheres for conditioning and testing

Publish Date: 1998-10-19