GB/T 12010.4-2010
Plastic.Poly(vinyl alcohol)(PVAL)materials.Part 4:Determination for pH value (English Version)

Standard No.

GB/T 12010.4-2010

Language

Chinese, Available in English version

Release Date

2010

Published By

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

Latest

GB/T 12010.4-2010

Replace

GB/T 12010.8-1989

Scope

This part of GB/T 12010 specifies the method for measuring the pH value of aqueous solutions of polyvinyl alcohol materials with a pH meter. This section applies to the determination of the pH value of a 4% aqueous solution of polyvinyl alcohol materials with a degree of alcoholysis greater than 70% (mol fraction).

GB/T 12010.4-2010 Referenced Document

• GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
• GB/T 6682 Water for analytical laboratory use.Specification and test methods
• GB/T 9724 Chemical reagent.General rule for the determination of pH
• JJG 119-2005 Laboratory pH Meters

GB/T 12010.4-2010 history

• 2010 GB/T 12010.2-2010 Plastic.Poly(vinyl alcohol)(PVAL)materials.Part 2:Determination of properties
• 1989 GB/T 12010.4-1989 Determination for volatile matter of polyvinyl alcohol resins

GB/T 12010.4-2010 Plastic.Poly(vinyl alcohol)(PVAL)materials.Part 4:Determination for pH value has been changed from GB/T 12010.8-1989 Determination for pH of polyvinyl alcohol resins.

GB/T 12010.4-2010 -All Parts