This standard specifies the determination of pigment loading volume and apparent density (pb). Loading volume refers to the volume (milliliters) per 100 grams of pigment sample, while apparent density (pb) refers to the mass (grams) per millilitre of pigment sample. The standard uses methods equivalent to ISO 787/11-1981 for determination and specifies the use of a sieve with a pore size of 0.4mm. During testing, a dedicated loading volumeter is required to ensure the accuracy of the data. The standard provides a uniform test basis for the analysis of the physical properties of pigments, which contributes to quality control and product conformity.