GB/T 32685-2016 Active National standards

GB/T 32685-2016 Purified terephthalic acid(PTA) for industrial use

GB/T 32685-2016 Purified terephthalic acid(PTA) for industrial use

Publish Date: 2016-06-14 Implement Date: 2017-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 32685-2016

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic organic chemical raw materials

ICS Name: Organic acids

Publish Date: 2016-06-14

Implement Date: 2017-01-01

Pages: 6 pages

Scope

This standard specifies the technical requirements, test methods, inspection rules, packaging, marking, transportation, storage, and safety requirements for industrial-grade purified terephthalic acid (abbreviated as PTA). This standard applies to industrial-grade purified terephthalic acid (PTA) produced from petroleum-derived p-xylene through oxidation and refining. This product is mainly used as a raw material for the production of polyester chips, polyester fibers, and chemical products. Molecular formula: C8H6O4; structural formula: ; relative molecular mass: 166.13 (based on the 2011 International Relative Atomic Mass).

Development Information

Word Count: 10 Thousand words Pages: 6 pages

Referenced Standards

GB/T 3143-1982 Color determination method of liquid chemicals (Hazen unit—platinum-cobalt scale) GB/T 3723-1999 Sampling of chemical products for industrial use—Safety in sampling GB/T 6678-2003 General principles for sampling chemical products GB/T 6679-2003 General rules for sampling solid chemical products GB/T 7531-1987 Determination of ash for organic chemical products GB/T 7531-2008 Determination of ignition residue for organic chemical products 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 17521-1998 Chemical reagent N,N-dimethylformamide GB/T 30921.1-2014 Test method of purified terephthalic acid (PTA) for industrial use—Part 1:Determination of concentrations of 4-carboxybenzaldehyde (4-CBA)and p-toluic acid (p-TOL) GB/T 30921.2-2016 Test method of purified terephthalic acid(PTA) for industrial use—Part 2:Determination of metal content GB/T 30921.3-2016 Test method of purified terephthalic acid(PTA) for industrial use—Part 3:Determination of water content GB/T 30921.4-2016 Test method of purified terephthalic acid(PTA) for industrial use—Part 4:Determination of titanium content—Diantipyrylmethane photometric method GB/T 30921.5-2016 Test method of purified terephthalic acid(PTA) for industrial use—Part 5:Determination of acid number GB/T 30921.6-2016 Test method of purified terephthalic acid(PTA) for industrial use—Part 6:Determination of particle size distribution GB/T 30921.7-2016 Test method of purified terephthalic acid(PTA) for industrial use—Part 7:Determination of b* value—Color difference meter GB/T 30921.5-2025 Test methods of purified terephthalic acid(PTA) for industrial use—Part 5:Determination of acid number GB/T 30921.6-2025 Test methods of purified terephthalic acid(PTA) for industrial use—Part 6:Determination of particle size distribution

Related Standards

GB/T 1626-1988 Replaced

GB/T 1626-1988 Oxalic acid for industrial use

Publish Date: 1988-04-12

GB/T 2092-1992 Replaced

GB/T 2092-1992 Sebacic acid for industrial use

Publish Date: 1992-01-14

GB/T 2093-1993 Replaced

GB/T 2093-1993 Formic acid for industrial use

Publish Date: 1993-06-15

SH/T 1499.1-1997 Replaced

SH/T 1499.1-1997 Pure adipic acid

Publish Date: 1997-07-12

SH/T 1499.2-1997 Active

SH/T 1499.2-1997 Pure adipic acid--Determination of content--Titrimetric method

Publish Date: 1997-07-12

SH/T 1499.3-1997 Replaced

SH/T 1499.3-1997 Pure adipic acid--Measurement of ammonia solution colour(in Pt-Co scale)--Spectrophotometric method

Publish Date: 1997-07-12