GB/T 3780.21-2025
ActiveCarbon black—Part 21：Determination of sieve residue—Water washing method
炭黑 第21部分：筛余物的测定 水冲洗法
Application Summary AI generated
This standard specifies the water washing method for determining the sieve residue in carbon black, which measures the coarse particles or agglomerates retained on a sieve after washing with water. It is applied in the rubber and plastics industries for quality control of carbon black used as a reinforcing filler in tires, hoses, and other elastomeric products. The method ensures consistency in raw material fineness, directly impacting the dispersion and mechanical properties of the final rubber compounds.
Related Standards
GB/T 7767-2003
Standard terminology relating to carbon black
GB/T 19188-2003
Rubber，raw natural and raw synthetic--General guidance on storage
GB/T 18953-2003
Rubber compounding ingredients--Stearic acid--Definition and test methods
GB/T 18952-2003
Rubber compounding ingredients--Sulfur--Methods of test
GB/T 18951-2003
Rubber compounding ingredients--Zinc oxide--Test methods
GB/T 11175-2002
Testing methods for synthetic resin emulsions
GB/T 17603-1998
Method for outdoor exposure testing of photodegradable plastics
GB/T 2918-1998
Plastics--Standard atmospheres for conditioning and testing
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.