GB/T 30921.1-2014 Active National standards

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)

Publish Date: 2014-07-08 Implement Date: 2014-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 30921.1-2014

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic organic chemical raw materials

ICS Name: Organic acids

Publish Date: 2014-07-08

Implement Date: 2014-12-01

Pages: 12 pages

Scope

This part of GB/T 30921 specifies the high-performance liquid chromatography and high-performance capillary electrophoresis methods for determining the content of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL) in industrial-grade phthalic acid (PTA).
The high-performance liquid chromatography method specified in this part is suitable for determining the content of 4-CBA and p-TOL in PTA samples with concentrations of more than 2 mg/kg and 10 mg/kg, respectively; the high-performance capillary electrophoresis method is suitable for determining the content of 4-CBA and p-TOL in PTA samples with concentrations of more than 1 mg/kg and 5 mg/kg, respectively.