ASTM E755 PDF

Standard Test Method for Dicumyl Peroxide, Assay (Liquid Chromatography) (Withdrawn 2016)

ASTM E755 – Standard Test Method for Dicumyl Peroxide, Assay (Liquid Chromatography) (Withdrawn 2016)

1.1 This test method covers the assay of dicumyl peroxidein commercially available refined grades of dicumyl peroxide. Technical grades can also be assayed, provided that impurities that interferechromatographically are absent (see Note 1). These materialsnominally contain approximately 99 and 92 % of dicumyl peroxide, respectively.

Note 1 – In the assay of technical grade dicumyl peroxide, errors are possible if the product contains an impurity that elutes with the same retention timeas the internal standard. A chromatogram obtained under the test conditionsminus the internal standard will determine whether an interference situationexists in the assay of a particular technical grade product. If an impurityis noted, and its retention time is slightly different from that of the internalstandard, the interference can often be eliminated by the use of a columnknown to have a high plate count.

1.2 Review the current material safety data sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.

1.3 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7.