WARNING: Personnel using this standard should have practical experience in formal laboratory work. This standard does not address all possible problems. 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 standard specifies the requirements, packaging and labeling, storage and transportation, and sampling of industrial reference carbon black 4# (IRC4#). This standard applies to industrial reference carbon black 4#.
GB/T 9578-2011 Referenced Document
GB/T 10 Countersunk head square neck bolts*, 2013-06-09 Update