GB/T 30921.7-2016
Test method of purified terephthalic acid (PTA) for industrial use.Part 7: Determination of b *value.Color difference meter (English Version)

Standard No.

GB/T 30921.7-2016

Language

Chinese, Available in English version

Release Date

2016

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 30921.7-2016

Scope

This part of GB/T 30921 specifies the color difference meter method for the determination of industrial purified terephthalic acid (PTA) b* value. This section applies to the determination of industrial purified terephthalic acid (PTA) b* value.

GB/T 30921.7-2016 Referenced Document

• GB/T 3723 Sampling of chemical products for industrial use--Safety in sampling
• GB/T 6679 General rules for sampling solid chemical products
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 30921.7-2016 history

• 2016 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 30921.7-2016 -All Parts