DIN EN ISO 15181-4 : 2009 Title: 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) Year: 2009 Publisher: DIN Media GmbH Availability: Within 1-2 working days