1.1”This practice covers the determination of the combined tannin and nonextractable organic resins and the degree of tannage of all types of vegetable-tanned leather and leather with organic retannages. This practice does not apply to wet blue.
Product Details
- Published:
- 12/01/2020
- Number of Pages:
- 2
- File Size:
- 1 file , 55 KB
