DIN Standards Committee Materials Testing
DIN 4870
Leather - Determination of the boiling stability of wet blue
Leder - Bestimmung der Kochgare von Wet-blue
Overview
This standard specifies a method for the determination of the boiling stability of wet blue in the dewatered condition. The determined length shrinkage serves as quality control of the chrome tanning. Along the lines of this standard, a test after removal directly from the tanning drum is also possible as process control. The values determined during this process are not directly comparable with those from the dewatered samples.
Document: references other documents
Responsible national committee
NA 062-05-51 AA - Requirements and physical test methods of leather and ....