WARNING: Personnel using this standard should have practical experience in formal laboratory work. This standard does not address all possible safety issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This part of GB/T 3780 specifies the method for the determination of the pH value of carbon black. This part is applicable to various types of carbon black for rubber, various types of acetylene carbon black, and various types of pigment carbon black.
GB/T 3780.7-2006 Referenced Document
GB 3778 Carbon black for use in rubber products*, 2011-12-05 Update