GB/T 3780.21-2006
Carbon black.Part 21:Determination of sieve residue for rubber compounding ingredients.Water wsahing method (English Version)

Standard No.

GB/T 3780.21-2006

Language

Chinese, Available in English version

Release Date

2006

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2017-01

Replace By

GB/T 3780.21-2016

Latest

GB/T 3780.21-2016

Replace

GB/T 3780.21-2002 GB/T 13647-1992

Scope

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 sieve residues of powder raw materials for carbon black and rubber products by washing with water. This part applies to conventional untreated carbon black for rubber, pigment carbon black and powder raw materials for rubber products. Untreated carbon black for other purposes can be used as a reference, but it does not apply to various carbon blacks that have been oil-treated and oil-treated powders.

GB/T 3780.21-2006 Referenced Document

• GB 3778 Carbon black for use in rubber products*， 2011-12-05 Update
• GB/T 6003.1 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth*， 2022-10-12 Update
• GB/T 7044 Colour carbon black*， 2022-03-09 Update
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values*， 2008-07-16 Update

GB/T 3780.21-2006 history

• 2016 GB/T 3780.21-2016 Carbon black.Part 21:Determination of sieve residue.Water washing method
• 2006 GB/T 3780.21-2006 Carbon black.Part 21:Determination of sieve residue for rubber compounding ingredients.Water wsahing method
• 2002 GB/T 3780.21-2002 Carbon black used in rubber products--Determination of sieve residue--Water washing method
• 1992 GB/T 13647-1992 Compounding ingredients for rubber products--Determination of sieve residue-water-flushing method

GB/T 3780.21-2006 Carbon black.Part 21:Determination of sieve residue for rubber compounding ingredients.Water wsahing method has been changed from GB/T 13647-1992 Compounding ingredients for rubber products--Determination of sieve residue-water-flushing method.

GB/T 3780.21-2006 -All Parts