GB/T 12688.4-2011
Test method of styrene for industrial use—Part 4:Determination of content of peroxides—Titrimetric method (English Version)

Standard No.: GB/T 12688.4-2011
Language: Chinese, Available in English version
Release Date: 2011
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 12688.4-2011
Replace: GB/T 12688.4-1990

Scope: This part specifies the method for the determination of peroxide content in styrene for industrial use. This section is not intended to address all safety issues related to its use. It is the user's responsibility to establish appropriate safety and health measures to ensure compliance with the relevant national laws and regulations. CAUTION: Styrene is flammable and will undergo exothermic polymerization when in contact with peroxides, mineral acids, and aluminum chloride, among others. High concentrations of liquid styrene and its vapors are irritating to the eyes and respiratory system.

GB/T 12688.4-2011 Referenced Document

GB/T 3723 Sampling of chemical products for industrial use--Safety in sampling
GB/T 601 Chemical reagent.Preparations of reference titration solutions*， 2016-10-13 Update
GB/T 6680 General rules for sampling liquid 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

2011 GB/T 12688.4-2011 Test method of styrene for industrial use—Part 4:Determination of content of peroxides—Titrimetric method
1990 GB/T 12688.4-1990 Styrene for industrial use--Determination of content of peroxides--Titrimetric method