GB/T 3781.4-1993
Acetylene black--Determination of pH value (English Version)
- Standard No.
- GB/T 3781.4-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2007-01
- Replace By
- GB/T 3780.7-2006
- Latest
- GB/T 3780.7-2016
- Scope
- This standard specifies the method for the determination of the pH value of acetylene carbon black. This standard applies to the determination of the pH value of acetylene carbon black.
GB/T 3781.4-1993 history
- 2016 GB/T 3780.7-2016 Carbon black.Part 7:Determination of pH value
- 2006 GB/T 3780.7-2006 Carbon black.Part 7:Determination of_PH value
- 1993 GB/T 3781.4-1993 Acetylene black--Determination of pH value
GB/T 3781.4-1993 Acetylene black--Determination of pH value was changed to GB/T 3780.7-2006 Carbon black.Part 7:Determination of_PH value.
GB/T 3781.4-1993 -All Parts
GB/T 3781.4-1993 Acetylene black--Determination of pH value
GB/T 3781.5-2019 Acetylene black—Part 5:Determination of grit content
GB/T 3781.6-2019 Acetylene black—Part 6：Determination of apparent specific volume
GB/T 3781.7-1993 Acetylene black--Determination of iodine absorptionnumber
GB/T 3781.8-2006 Acetylene black.Part 8:Determination of hydrochloric acid absorption number
GB/T 3781.9-2019 Acetylene black—Part 9：Determination of resistivity