This standard specifies a comparative method for the color of precipitated hydrated silica in rubber compounds. This standard is applicable to the comparison of the color of rubber compound precipitated hydrated silica.
HG/T 3063-1999 history
2008HG/T 3063-2008 Rubber compounding ingredients.Silica, precipitated, hydrated.Comparsion method of colour
1999HG/T 3063-1999 Rubber compounding ingredients.Silica,precipitated,hydrated.Comparision method of colour