BS EN ISO 15181-4:2008 PDF

Scope: This part of ISO 15181 specifies the apparatus and analytical method for determining the amount of pyridinetriphenylborane (PTPB) that has been released from an antifouling paint into artificial seawater in accordance with the procedure given in ISO 15181-1. 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 ISO 15181 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 ISO 15181-1. When used in conjunction with ISO 15181-1, the practical limits on the quantitative measurement of release rates by this method are from 1,8 μg⋅cm−2⋅d−1 to 500 μg⋅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 Clause 3 and in 5.1.

BS EN ISO 15181-4:2008 Referenced Document

ASTM D6442-06 Standard Test Method for Determination of Copper Release Rate From Antifouling Coatings in Substitute Ocean Water*， 2024-04-19 Update
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 Water for analytical laboratory use; Specification and test methods

2008 BS EN ISO 15181-4:2008 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