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2. Properties
For the sake of clarity, it is necessary to distinguish between the properties of resins (PVC without additives) and those of processed products (materials and objects).
2.1 Resins
PVC resins are white powders, generally odorless and tasteless. Depending on their particle size distribution, they resemble either flour or very fine sand.
In order to characterize each resin more precisely, and also to make it easier for users to choose, we use designations standardized by AFNOR (Association Française de Normalisation), CEN (Comité Européen de Normalisation) and ISO (International Organization for Standardization).
Their main physico-chemical characteristics are listed below, based on measurements carried out according...
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Properties
Implementation
Economic data
Production and consumption
PVC is now the third most widely used polymer in the world, after polyethylene and polypropylene. Long ranked second, PVC has slipped back to 3rd place, to the benefit of polypropylene, which has seen greater growth in recent years.
Bibliographies
References
Standards for identifying and determining properties
Some of the methods used to characterize different properties and then identify products have been the subject of national, European or international agreements and have become AFNOR, CEN or ISO standards ...
Legislation and regulations
Health and hygiene
Hygiene at work
The production, processing and use of PVC must be considered from the point of view of protecting the health and safety of workers and users.
Prior to 1976, exposure to vinyl chloride monomer (VCM) in polymerization units was the cause of serious pathologies, leading the chemical industry to introduce or reinforce preventive and protective...
Organizations
AFNOR (Association française de normalisation) http://www.afnor.fr
CSTB (Centre scientifique et technique du bâtiment) http://www.cstb.fr
Eco-Emballages (organisme qui supervise et accompagne le tri des emballages ménagers en France)
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