Plastics - Determination of matter extractable by organic solvents (conventional methods) (ISO 6427:2013); German version EN ISO 6427:2014

2Scope / Description

This International Standard specifies methods for determining constituents in plastics that can be extracted by hot organic liquids close to their boiling points. For a specific case, a so-called cold extraction method is given in Annex B. The extractable constituents may consist of monomers, oligomers, polymers, plasticizers, stabilizers, etc. The type and amount of extractable constituents influence the properties of the plastics. The extraction liquid to be used depends on the type of plastic and the objective of the determination (see Table 1). The extractable amounts of certain constituents are often not determined quantitatively in the sense of analytical chemistry. This International Standard does not apply to plastics that come into contact with food or drinking water. For these plastics, special regulations exist in many countries. To test plastics in accordance with these regulations, in most cases other test methods than those specified in this International Standard must be used. The test methods of this International Standard are not intended for use in migration tests. If this International Standard is used to test plastics other than those listed in Table 1, the test conditions must be agreed between the parties involved.