This standard specifies the method for the determination of coarse particle fraction of acetylene carbon black. This standard applies to the determination of acetylene carbon black coarse particle fraction.
GB/T 3781.5-1993 history
2019GB/T 3781.5-2019 Acetylene black—Part 5:Determination of grit content
2006GB/T 3781.5-2006 Acetylene black.Part 5:Determination of grit contene
1993GB/T 3781.5-1993 Acetylene black. Determination of grit content