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 the method for determining the silica content of dry samples. This standard applies to rubber compounding agents precipitated hydrated silica.
HG/T 3062-2008 Referenced Document
GB/T 6682 Water for analytical laboratory use.Specification and test methods*, 2008-05-15 Update
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values*, 2008-07-16 Update