CS 56 :1969 : |CS 52 : 1969 : Method for the determination of colour fastness of textile materials to washing at 40 C (Test 1) 1969
- Colombo Bureau of Ceylon Standards
STD 2140
CS 56 : 1969
677.06 : 677.21
STD 2140
CS 56 : 1969
677.06 : 677.21