By using headspace gas chromatography, the ASTM D4443 test technique includes the detection of residual vinyl chloride monomer content in the PPB Range in vinyl chloride homo- and copolymers. Vinyl chloride-containing polymers are widely used to package a variety of materials, including foods.
The ASTM D4443 test technique can be used to determine the residual vinyl chloride monomer (RVM) content of vinyl chloride homopolymers and copolymers down to a concentration of 5 ppb. This test method can be used with any polymer that can be dissolved in a suitable solvent, such as resin, compound, film, bottle walls, and so on. The residual vinyl chloride monomer content in vinyl chloride-containing polymers is important to plastic manufacturers, food packers, government agencies, and others.
For ASTM D4443, samples of vinyl chloride-containing polymers are dissolved in a suitable solvent in a closed system. At a high temperature, the polymer solution and headspace are equilibrated. The vinyl chloride monomer is isolated using aliquots of headspace gas injected into a gas chromatograph. One of several proposed detectors is used to measure the reaction of vinyl chloride monomer. Vinyl chloride monomer in nitrogen gas standards, standard solutions having known amounts of vinyl chloride monomer, or a method of standard addition have all been used for calibration.
For ASTM D4443 test procedure, a neat and clean vinyl chloride monomer is used as a test specimen.
The vinyl chloride monomer (VCM) content is reported in parts per billion.
ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 is a standard test method for the analysis of sulfochromate etches solution used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
ASTM G65 measures the resistance of metallic materials to abrasion using the dry sand/rubber wheel apparatus. The quality, durability, and toughness of the sample are determined using this test. Metallic materials are ranked in their resistance to scratching abrasion under a controlled environment.
ASTM E2141 test methods provide accelerated aging and monitoring of the performance of time-dependent electrochromic devices (ECD) integrated in insulating glass units (IGU). This test helps to understand the relative serviceability of electrochromic glazings applied on ECD.
ASTM C724 test method is used in analyzing the quality and ease of maintenance of a ceramic decoration on architectural-type glass. This test method is useful in the acknowledgment of technical standards.
Send us a request
Process for testing
You share material and testing requirements with us
We ensure your sample pick-up in an ensured manner
We deliver test report to your inbox
Just share your testing requirements and leave the rest on us!