Informējam, ka Sistēma pielāgota darbam ar interneta pārlūkprogrammu Internet Explorer (8. un jaunākām versijām) un Mozilla Firefox (3.6 un jaunākām versijām).
Izmantojot citu interneta pārlūkprogrammu, brīdinām, ka Sistēmas funkcionalitāte var tikt traucēta.
<p>ISO 21561-2:2016 specifies procedures for the quantitative determination of the microstructure of the butadiene and the content of styrene in solution-polymerized SBR (S-SBR) by Fourier Transform Infrared Spectrometry (FTIR) with Attenuated Total Reflection (ATR) method. The styrene content is expressed in mass % relative to the whole polymer. The vinyl, trans and cis contents are expressed in mol % relative to the butadiene content. This method is only applicable to raw rubbers.</p>
<p>NOTE 1 Precision as shown in Annex A may not be obtained for S-SBRs containing polystyrene block or styrene content more than 45 mass %.</p>
<p>NOTE 2 Only "vinyl", "trans" and "cis", are used in this part of ISO 21561. However, the expression of vinyl, trans and cis mean as follows in general:</p>
<p>- vinyl: vinyl unit, vinyl bond, 1,2-unit, 1,2-bond, 1,2-vinyl-unit or 1,2-vinyl-bond;</p>
<p>- trans: 1,4-trans unit, 1,4-trans bond, trans-1,4 unit or trans1,4 bond;</p>
<p>- cis: 1,4-cis unit, 1,4-cis bond, cis-1,4 unit or cis-1,4 bond.</p>
Reģistrācijas numurs (WIID)
64125
Darbības sfēra
<p>ISO 21561-2:2016 specifies procedures for the quantitative determination of the microstructure of the butadiene and the content of styrene in solution-polymerized SBR (S-SBR) by Fourier Transform Infrared Spectrometry (FTIR) with Attenuated Total Reflection (ATR) method. The styrene content is expressed in mass % relative to the whole polymer. The vinyl, trans and cis contents are expressed in mol % relative to the butadiene content. This method is only applicable to raw rubbers.</p>
<p>NOTE 1 Precision as shown in Annex A may not be obtained for S-SBRs containing polystyrene block or styrene content more than 45 mass %.</p>
<p>NOTE 2 Only "vinyl", "trans" and "cis", are used in this part of ISO 21561. However, the expression of vinyl, trans and cis mean as follows in general:</p>
<p>- vinyl: vinyl unit, vinyl bond, 1,2-unit, 1,2-bond, 1,2-vinyl-unit or 1,2-vinyl-bond;</p>
<p>- trans: 1,4-trans unit, 1,4-trans bond, trans-1,4 unit or trans1,4 bond;</p>
<p>- cis: 1,4-cis unit, 1,4-cis bond, cis-1,4 unit or cis-1,4 bond.</p>
