BS 3452:1962
Specification for copper/chrome water-borne wood preservatives and their application
Copper sulphate and sodium or potassium dichromate, for application in aqueous solution by pressure or vacuum and pressure. Proportions of ingredients, characteristics of solution, method of application to timber, minimum net dry salt retentions for protection of timber against various hazards. Sampling, analysing preservative, measuring penetration, determining copper and chromium in treated timber.
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