According to Indian Standards, the dispersing solution used in sedimentation analysis, for the determination of particle size consists of:
A7 g sodium carbonate, 43 g Sodium hexameta phosphate
B7 g sodium carbonate, 33 gSodium hexameta phosphate
C7 g sodium carbonate, 23 g Sodium hexameta phosphate
D43 g sodium carbonate, 7gSodium hexameta phosphate