RO
SR EN ISO 15512:2009
Plastics - Determination of water content (ISO 15512:2008)
ISO 15512:2008 specifies methods for the determination of the water content of plastics in the form of granules and finished articles. These methods do not test for water absorption (kinetics and equilibrium) of plastics as measured by ISO 62. The methods are suitable for the determination of water content as low as the following levels: Method A 0,1 % or better; Method B 0,01 % or better; Method C 0,01 % or better. Three alternative methods are specified: Method A is an extraction method using anhydrous methanol followed by a Karl Fischer titration of the extracted water. It can be used for all plastics and is applicable to granules having a maximum size of 4 mm x 4 mm x 3 mm. Method B is a vaporization method using heated, dry air or nitrogen gas to evaporate the water, followed by a Karl Fischer titration of the collected water. It can be used for all plastics and is applicable to granules smaller than 4 mm x 4 mm x 3 mm. Method C is a manometric method. The water content is determined from the increase in pressure which results when the water is evaporated under a vac
Status :
Withdrawn
Approval date : 12/15/2009
Publish date : 12/17/2009
Withdrawal date : 2/27/2015
Number of pages : 24
ICS : 83.080.01 Plastics in general
Technical Committee : 108 - Plastics, codification and analysis methods
- Replaces SR EN ISO 15512:2004
- Normative reference SR ISO 760:1994
- Replaced by SR EN ISO 15512:2015
- Conflict with STAS 7725-67