1.1 This test method covers the determination of the polymer content of Methylstyrene (AMS). Dimers and trimers are not measured by these test methods. 1.2 This test method has been found applicable to determining the polymer content of AMS in concentrations up to 15 mg/kg. Samples containing more than 15 mg/kg of polymer shall be suitably diluted before measurement. 1.4 In determining the conformance of the test results using this test method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29. 1.5 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. 1.6 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. For specific hazard statements, see Section 8.
Polymer in AMS is a specification for AMS. The current method has been found unsatisfactory and a new standard is required.
Keywordsa-methylstyrene; AMS; polymer; polymer content
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Ballot Item Approved as D7977-2014 and Pending Publication