DIN EN ISO 15181-4-2009 涂料和清漆.防污涂料中生物杀灭剂释放率的测定.第4部分:萃取物中吡啶三苯基硼烷(PTPB)浓度的测定和释放率的计算
Paints and varnishes - Determination of release rate of biocides from antifouling paints - Part 4: Determination of pyridine-triphenylborane (PTPB) concentration in the extract and calculation of the release rate (ISO 15181-4:2008); English version of DIN
This part of ISO 15181 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 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<(UP)-2>·d-1 to 500 μg·cm<(UP)-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.