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PROCEDURE FOR DETERMINING BIOCID CONCENTRATION IN AURAL ENVIRONMENTS AND ANALYTICAL METHOD FOR EXERCISING THE PROCEDURE
PROCEDURE FOR DETERMINING BIOCID CONCENTRATION IN AURAL ENVIRONMENTS AND ANALYTICAL METHOD FOR EXERCISING THE PROCEDURE
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机译:测定自来水中生物杀伤剂浓度的程序及执行该程序的分析方法
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摘要
A colorimetric method for determining the concentration of aldehyde release biocides when present in aqueous systems (e.g. oil-water emulsions used in metal working) which can be carried out by personnel unskilled in chemical analysis, comprises subjecting a dilute sample of the aqueous system to a MBTH test procedure for determination of aldehydes, and matching the colour developed, either when viewed through a yellow filter or in the presence in the sample of a yellow colouring agent with a colour scale showing the relationship between the colours obtained by the method, to a series of samples containing known concentrations of biocide. The invention includes apparatus for carrying out the method, e.g. a kit containing suitable quantities of the reagents (1,2) devices for measuring out small quantities of the reagents (4, 5, 6) and a colour chart (8).
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