GB/T 6744-2008 Active National standards

GB/T 6744-2008 Binders for paints and varnishes—Determination of saponification value—Titrimetric method

Publish Date: 2008-06-04 Implement Date: 2008-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 6744-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Paints, pigments, and dyes

ICS Name: Paints and varnishes

Publish Date: 2008-06-04

Implement Date: 2008-12-01

Pages: 7 pages

Scope

This standard specifies the steps for determining the content of esterified acids in paint bases for color paints and varnishes (including the content of free acids and acid anhydrides in the paint base) by titration method. Due to the different saponification resistance of different paint bases, this standard has limitations in its applicability. If necessary, the experiment can be repeated under more stringent conditions to test the complete saponification value, such as extending the saponification time, increasing the concentration of potassium hydroxide solution, or using alcohols with higher boiling points as solvents. This standard is not applicable to paint bases that can further react with alkali beyond normal saponification. Appendix A specifies the method for determining the saponification value of hard-to-saponify paint bases.