ISO 15181-5:2008 色漆和清漆 防腐漆抗微生物剂释放率的测定 第5部分：通过测定萃取物中DMST和DMSA的浓度计算甲苯氟磺胺和苯氟磺胺的释放率

标准编号：ISO 15181-5:2008

中文名称：色漆和清漆 防腐漆抗微生物剂释放率的测定 第5部分：通过测定萃取物中DMST和DMSA的浓度计算甲苯氟磺胺和苯氟磺胺的释放率

英文名称：Paints and varnishes — Determination of release rate of biocides from antifouling paints — Part 5: Calculation of the tolylfluanid and dichlofluanid release rate by determination of the concentration

发布日期：2008-05

标准范围

ISO 15181-5:2008规定了根据ISO 15181-1中给出的程序测定从防污涂料释放到人工海水中的甲苯基氟烷和二氯氟烷含量的仪器和分析方法。甲苯基氟烷和二氯氟烷在海洋环境中不稳定，分别降解成二甲基甲苯基磺酰胺（DMST）和二甲基苯基磺酰胺（DMSA）。ISO 15181-5:2008规定了将释放的物种转化为这些降解产物的方法，量化了它们在处理过的人工海水样品中的浓度，并给出了在规定实验室条件下甲苯基氟烷和二氯氟烷释放率的最终计算。ISO 15181-5:2008旨在通过分析单独的亚组分，同时测定给定防污漆（例如铜）可能释放的甲苯基氟烷、二氯氟烷和其他杀生物剂-根据ISO 15181-1生成的人工海水提取物样品。当与ISO 15181-1结合使用时，通过该方法量化释放率的实际限值为每天每平方厘米1.3微克到每天每平方厘米500微克。低于该范围的释放率的定量将需要使用一种分析方法，该方法对人工海水中的甲苯基氟烷、二氯氟烷或两者（视情况而定）的定量下限

ISO 15181-5:2008 specifies the apparatus and analytical method for determining the amount of tolylfluanid and dichlofluanid that has been released from an antifouling paint into artificial seawater in accordance with the procedure given in ISO 15181-1.Tolylfluanid and dichlofluanid are unstable in the marine environment and degrade to form dimethyltolylsulfamide (DMST) and dimethylphenylsulfamide (DMSA) respectively. ISO 15181-5:2008 specifies a method for converting the released species into these degradation products, quantifying their concentration in the treated artificial seawater samples, and gives the final calculation for the release rate of tolylfluanid and dichlofluanid under the specified laboratory conditions.ISO 15181-5:2008 is designed to allow the concurrent determination of tolylfluanid, dichlofluanid and other biocides that can be released by a given antifouling paint (for example, copper) through the analysis of separate sub-samples of an artificial seawater extract generated in accordance with ISO 15181-1.When used in conjunction with ISO 15181-1, the practical limits for quantifying release rates by this method are from 1,3 micrograms per square centimetre per day to 500 micrograms per square centimetre per day. The quantitation of release rates lower than this range will require the use of an analytical method with a lower limit of quantitation for tolylfluanid, dichlofluanid, or both (as appropriate) in artificial seawater

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