Paints and varnishes. Determination of release rate of biocides from antifouling paints Determination of pyridine-triphenylborane (PTPB) concentration in the extract and calculation of the release rate

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-09-2008

Publisher

British Standards Institution

This part of ISO15181 specifies the apparatus and analytical method for determining the amount of pyridine-triphenylborane (PTPB) that has been released from an antifouling paint into artificial seawater in accordance with the procedure given in ISO15181-1. It determines the PTPB concentration in the artificial seawater extract and gives the final calculation for the release rate of PTPB under the specified laboratory conditions.

This part of ISO15181 is designed to allow the concurrent determination of PTPB and other biocides that can be released by a given antifouling paint (for example zineb) through the analysis of separate sub-samples of an artificial seawater extract generated in accordance with the procedure given in ISO15181-1.

When used in conjunction with ISO15181-1, the practical limits on the quantitative measurement of release rates by this method are from 1,8µg·cm^-2·d^-1 to 500µg·cm^-2·d^-1. The quantitative measurement of release rates below this range will require the concentration step described in the last paragraph in 8.2 or the use of an analytical method with a limit of quantitation for PTPB in artificial seawater which is lower than the limit specified in Clause3 and in 5.1.

Committee	STI/10
DevelopmentNote	Also numbered as BS 3900-K4(2008). (09/2008)
DocumentType	Standard
Pages	22
PublisherName	British Standards Institution
Status	Current

Standards	Relationship
ISO 15181-4:2008	Identical
EN ISO 15181-4:2008	Identical

ISO 15181-1:2007	Paints and varnishes — Determination of release rate of biocides from antifouling paints — Part 1: General method for extraction of biocides
ISO 3696:1987	Water for analytical laboratory use — Specification and test methods