ASTM-D5991 › Historical Revision Information
Standard Practice for Separation and Identification of Poly(Vinyl Chloride) (PVC) Contamination in Poly(Ethylene Terephthalate) (PET) Flake
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 This practice covers four procedures for separation and qualitative identification of poly(vinyl chloride) (PVC) contamination in poly(ethylene terephthalate) (PET) flakes.
Note 1- Although not presented as a quantitative method, procedures presented in this practice may be used to provide quantitative results at the discretion of the user. The user assumes the responsibility to verify the reproducibility of quantitative results. Data from an independent source suggesta PVC detection level of 200 ppm (w/w) based on an original sample weight of 454 g.
1.2 Procedure A is based on different fluoroescence of PVC and PET when these polymers are exposed to ultraviolet (UV) light.
1.3 Procedure B is an oven test based upon the charring of PVC when it is heated in air at 235 degrees C.
1.4 Procedures C and D are dye tests based on differential staining of PVC and PET.
Note 2- Other polymers (for example PETG) also absorb the stain or brightener. Such interferences will result in false positive identification of PVC as the contaminant.
1.5 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. For specific hazards see Section 8.
Note 3- There is no equivalent ISO standard.
Keywords
contamination; poly(ethylene terephthalate) (PET); poly(vinyl chloride) (PVC); recycled plastics
To find similar documents by ASTM Volume:
To find similar documents by classification:
83.080.10 (Thermosetting materials Including ebonite Silicones, see 71.100.55)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-D5991-96
Revision Level
1996 EDITION
Status
Superseded
Modification Type
New
Publication Date
July 10, 1996
Document Type
Practice
Page Count
3 pages
Committee Number
D20.70