Standard No.:	GB/T 3780.5-2008
English Name:	Carbon black - Part 5：Determination of specific surface area-CTAB test method
Chinese Name:	炭黑 第5部分：比表面积的测定 CTAB法
Chinese Classification:	G49    Carbon black
Professional Classification:	GB    National Standard
ICS Classification:	83.040.30 83.040.30    Auxiliary materials and additives for plastics 83.040.30
Issued by:	AQSIQ; SAC
Issued on:	2008-05-14
Implemented on:	2008-10-1
Status:	superseded
Superseded by:	GB/T 3780.5-2017 Carbon black-Part 5:Determination of specific surface area-CTAB test method
Superseded on:	2018-5-1
Superseding:	GB/T 3780.5-2002 Carbon black used in rubber products--Determiantion of specific surface area--CTAB test method
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	120.0
Delivery:	via email in 1 business day

1 Scope This part of GB/T 3780 specifies the test method of using the cetyl trimethylammonium bromide (CTAB) method to determine the external surface area of carbon black. This part is applicable to rubber grade carbon black. 2 Normative References The following standards contain provisions which, through reference in this part of GB/T 3780, constitute provisions of this part. For dated reference, subsequent modification to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this part are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this part.

Contents Foreword I 1 Scope 2 Normative References 3 Principle 4 Reagents and Materials 5 Apparatus 6 Sampling 7 Test Condition 8 Analytical Procedure 9 Determination of Correlation Coefficient 10 Calculation 11 Calibration of CTAB Solution 12 Precision 13 Test Report Annex A (Informative) Comparison between Chapter and Article Numbers of this Part and Those of ASTM D 3765:2004 Annex B (Informative) Determination of Correlation Coefficient and Example of Calculation Annex C (Informative) CTAB Specific Surface Areas and STSA Reference Values of SRB Series Standard Reference Blacks