Abstract
ISO 21561:2005 specifies procedures for the quantitative determination of the microstructure of the butadiene units and the content of styrene units in solution-polymerized SBR (S-SBR) by 1H-NMR spectrometry as an absolute method and by IR spectrometry as a relative method. The styrene content is expressed in mass % relative to the whole polymer. The 1,4-trans, 1,4-cis and 1,2-vinyl contents are expressed in mol % relative to the butadiene units.
General information
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Status: WithdrawnPublication date: 2005-12Stage: Withdrawal of International Standard [95.99]
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Edition: 1Number of pages: 15
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Technical Committee :ISO/TC 45/SC 3ICS :83.060
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Life cycle
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Now
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00
Preliminary
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10
Proposal
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20
Preparatory
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30
Committee
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40
Enquiry
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50
Approval
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60
Publication
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90
Review
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95
Withdrawal
Amendments
Provide additional content; available for purchase; not included in the text of the existing standard.WithdrawnISO 21561:2005/Amd 1:2010
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00
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Revised by
PublishedISO 21561-1:2015
WithdrawnISO 21561-2:2016