1.1 This standard prescribes a method for deter-mination of colour fastness of textile materials to the action of acid hypochlorite solution.
1.2 The method is mainly applicable to materials containing wool.
may be obtained from the Indian Standards Institution.
0.4 Taking into consideration the views of the producers, the consumers and the testing autho-rities, the Sectional Committee responsible for the preparation of this standard felt that it should be related to the manufacturing and testing practices followed in the country in this held. Furthermore, due weightage had to be given to the need for inter-national co-ordination between standards pre-vailing in different countries of the world. These considerations led the Sectional Committee to base this standard mainly on the method of test for colour fastness to acid chlorination recommended by the ISO Subcommittee for Colour Fastness Tests (ISO/TC 38/SC 1 ) in its third meeting at Scarborough.
0.5 This standard method requires reference to the following Indian Standards:
IS: 768-1956 Method for Evaluating Change in Colour
IS: 769-1956 Method for Evaluating Stain-ing
0.5.1 Wherever a reference to any Indian Standard mentioned in 0.5 appears in this stand-ard method, it shall be taken as a reference to the latest version of the standard. 0.6 In view of the decision of the Government of India to introduce in the country a uniform system of weights and measures based on the metric system, all measurements in this standard have been given in metric units.
IS 967-1956 history
1957IS 967-1956 Method for determination of color fastness of textile materials to acid chlorination