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ASTM D5054-90(2009)

Current Reaffirmation

Standard Test Method for Rubber Chemicals—Diphenyl Guanidine (DPG) and Di-o-tolyl-guanidine (DOTG) Assay (Withdrawn 2018)

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1.1 This test method covers the determination of assay of diphenyl guanidine (DPG) and di-o-tolyl-guanidine (DOTG). It is based on a visual titration of DPG or DOTG with hydrochloric acid (HCl).

1.2 The assay is determined as mass percent.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

DPG and DOTG are used for rubber and latex vulcanization acceleration. The amount of DPG or DOTG may be of importance in predicting performance in rubber compounds and for raw material purchase and control.

This test method may be used as a quality control tool and for research and development work.

SDO ASTM: ASTM International
Document Number D5054
Publication Date July 1, 2009
Language en - English
Page Count 3
Revision Level 90(2009)
Supercedes
Committee D11.11
Publish Date Document Id Type View
Aug. 1, 2014 D5054-90R14 Revision
July 1, 2009 D5054-90R09 Reaffirmation
Dec. 1, 2004 D5054-90R04E01 Reaffirmation
Jan. 1, 2000 D5054-90R00 Reaffirmation