CS 56 : 1969 : Method for the determination of colour fastness of textile materials to washing at 95 C for 4 hours (Test 5)Colombo
- Colombo Bureau of Ceylon Standards
- 8p.
STD2140
CS 56 : 1969
677.06 : 677.21
STD2140
CS 56 : 1969
677.06 : 677.21