GB/T 6744-2008 (English Version) PDF

Standard No.: GB/T 6744-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 6744-2008
Replace: GB/T 6744-1986

Scope: This standard specifies the procedure for determining the content of esterified acid (including the content of free acid and anhydride in the binder) in the binder for paints and varnishes by titration. Due to the different saponification resistance of different paint bases, this standard has limitations in application. If necessary, the experiment can be repeated under more severe conditions to test the complete saponification value, such as prolonging the saponification time, increasing the concentration of potassium hydroxide solution, or using alcohol with a higher boiling point as a solvent. This standard does not apply to binders that can further react with alkali beyond normal saponification. Appendix A specifies the method for the determination of the saponification value of hard-to-saponifiable paint bases.

GB/T 6744-2008 Referenced Document

GB/T 12805 Laboratory glassware.Burettes *， 2011-12-30 Update
GB/T 12808 Laboratory glass instrument single marked line pipette*， 2016-07-01 Update
GB/T 3186-2006 Paints, varnishes and raw materials for paints and varnishes. Sampling
GB/T 6682 Water for analytical laboratory use.Specification and test methods

2008 GB/T 6744-2008 Binders for paints and varnishes.Determination of saponification value.Titrimetric method
1986 GB/T 6744-1986 Binders for paints and varnishes--Determination of saponification value