GB/T 30921.4-2016
Test method of purified terephthalic acid (PTA) for industrial use.Part 4: Determination of titanium content.Diantipyrylmethane photometric method (English Version)

Standard No.

GB/T 30921.4-2016

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 30921.4-2016

Scope

This part of GB/T 30921 specifies the spectrophotometric method for the determination of titanium content in industrial purified terephthalic acid (PTA). This section applies to the determination of the titanium content in industrial purified terephthalic acid (PTA) not less than 0.020 mg/kg samples.

GB/T 30921.4-2016 Referenced Document

• GB/T 602-2002 Chemical reagent--Preparations of standard solutions for impurity
• GB/T 6679 General rules for sampling solid chemical products
• GB/T 6682 Water for analytical laboratory use.Specification and test methods
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 30921.4-2016 history

• 2016 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 30921.4-2016 -All Parts