![]() ![]() ASTM D21241999 Edition, July 10, 1999Complete DocumentStandard Test Method for Analysis of Components in Poly(Vinyl Chloride) Compounds Using an Infrared Spectrophotometric Technique
Includes all amendments and changes through Reapproval Notice , 2011
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![]() Description / Abstract:
This test method provides for the identification of certain
resins, plasticizers, stabilizers, and fillers in poly(vinyl
chloride) (PVC) compounds by an infrared spectrophotometric
technique. In many cases, individual components may be measured
quantitatively. Complementary procedures, such as chromatographic
and other separations, will be necessary to separate specific
components and extend the applications of this test method. Other
instrumental test methods, such as optical emission or X-ray
spectroscopic methods, may yield complementary information which
may allow more complete or, in some cases, easier measurement of
the components. The resin components covered in this test method
are listed in the appendix.
PVC formulations are too varied to be covered adequately by a single test method. Using the following test method, many compounds may be separated into resins, plasticizers, stabilizers, and fillers. A number of components can be quantitatively measured. Many more can be identified and their concentrations estimated. By the use of prepared standards, one may determine the usefulness and accuracy of the test method for specific PVC formulations. This test method is applicable for the resin components listed in the appendix and for other components having similar chemical compositions and solubility characteristics. This test method can lead to error in cases where the nature of the components is not known. The values stated in SI units are to be regarded as the standard. The values in brackets are given for information only. 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. NOTE 1—There is no known ISO equivalent to this standard. ![]() |