GB/T 30921.3-2016 Active National standards

GB/T 30921.3-2016 Test method of purified terephthalic acid(PTA) for industrial use—Part 3:Determination of water content

GB/T 30921.3-2016 Test method of purified terephthalic acid(PTA) for industrial use—Part 3:Determination of water content

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 30921.3-2016

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 part of GB/T 30921 specifies the Karl Fischer titration method and thermal loss method for determining the water content in industrial-grade phthalic acid (PTA). The Karl Fischer titration method in this part is applicable to the determination of water content in industrial-grade PTA with a content of not less than 0.010% (by mass); the thermal loss method is applicable to the determination of water content in industrial-grade PTA with a content of not less than 0.050% (by mass).

Development Information

Word Count: 10 Thousand words Pages: 6 pages

Same series standard

GB/T 30921.2-2016 Test method of purified terephthalic acid(PTA) for industrial use—Part 2:Determination of metal 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

Referenced Standards

GB/T 3723-1999 Sampling of chemical products for industrial use—Safety in sampling 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 6679-2003 General rules for sampling solid 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

Related Standards

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Publish Date: 1988-04-12

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GB/T 2093-1993 Replaced

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SH/T 1499.1-1997 Replaced

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SH/T 1499.2-1997 Active

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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