1.1 This Pakistan Standarard Specification prescribes the requirements and methods of test for Ochre for use in paints.
1.2 The colour of the material shall be entirely due to inorganic compounds of iron and no added colouring matter shall be present.
PS 130-1961 history
1961PS 130-1961 OCHRE (Two Types) FOR PAINTS Type 1 Red; Type 2 Yellow