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<p>ISO 1407:2009 specifies three methods for the quantitative determination of the material extractable from raw rubbers, both natural and synthetic, and their unvulcanized and vulcanized compounds.</p>
<ul>
<li>method A measures the mass of the solvent extract, after evaporation of the solvent, relative to the mass of the original test portion;</li>
<li>method B measures the difference in the mass of the test portion before and after extraction;</li>
<li>method C, which is for raw rubber only, measures the difference in the mass of the test portion before and after extraction using boiling solvent.</li>
</ul>
<p>Recommendations as to the solvent most appropriate to each type of rubber are given in an annex.</p>
Reģistrācijas numurs (WIID)
42242
Darbības sfēra
<p>ISO 1407:2009 specifies three methods for the quantitative determination of the material extractable from raw rubbers, both natural and synthetic, and their unvulcanized and vulcanized compounds.</p>
<ul>
<li>method A measures the mass of the solvent extract, after evaporation of the solvent, relative to the mass of the original test portion;</li>
<li>method B measures the difference in the mass of the test portion before and after extraction;</li>
<li>method C, which is for raw rubber only, measures the difference in the mass of the test portion before and after extraction using boiling solvent.</li>
</ul>
<p>Recommendations as to the solvent most appropriate to each type of rubber are given in an annex.</p>
