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ASTM D3346-03

Historical Revision

Standard Test Methods for Rubber Property—Processability of Emulsion SBR (Styrene-Butadiene Rubber) With the Mooney Viscometer (Delta Mooney)

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1.1 These test methods² explain the use of the shearing disk viscometer to obtain an indication of the processability of non-pigmented emulsion styrene-butadiene rubbers (SBR). They may also be used to separate those polymers that are easy to process from those that are difficult to process within a group of polymers of the same type.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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.


These empirical tests have been found to be suitable for ranking a series of unpigmented emulsion SBR in order of processability. They may also be used for comparing a production lot with a standard of known processability characteristics. The difference between Mooney viscosities at two specified times will rank those emulsion SBR polymers that differ appreciably in this property according to their processability. The actual values obtained for a given polymer depend on whether or not the sample was massed, and may vary between laboratories or with the type of machine used, and with the specified times at which Mooney viscosity values were taken.

SDO ASTM: ASTM International
Document Number D3346
Publication Date June 10, 2003
Language en - English
Page Count 4
Revision Level 03
Supercedes
Committee D11.12
Publish Date Document Id Type View
Oct. 1, 2017 D3346-17 Revision
May 1, 2012 D3346-12 Revision
Nov. 1, 2007 D3346-07 Revision
June 10, 2003 D3346-03 Revision
Nov. 10, 2000 D3346-00 Revision
Oct. 1, 2022 D3346-17R22 Reaffirmation