Warning: Personnel using this standard should have practical experience in formal laboratory work. This standard does not address all possible safety issues. Users are responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national regulations. This standard specifies a method for determining color by visual comparison. This standard is applicable to the comparison of the color of rubber compound precipitated hydrated silica.
HG/T 3063-2008 Referenced Document
GB/T 6682 Water for analytical laboratory use.Specification and test methods*, 2008-05-15 Update