BS EN 901:2013 pdf free.Chemicals used for treatment of water intended for human consumption一Sodium hypochlorite.
BS EN 901 This European Standard is applicable to sodium hypochlorite used for treatment of water intended for human consumption. It describes the characteristics of sodium hypochlorite and specifies the requirements and the corresponding test methods for sodium hypochlorite. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use of sodium hypochlorite (see Annex B).NOTE While this standard is not applicable to sodium hypochlorite generated in-situ (see bibligraphic reference [7]),
the limits for impurities and chemical parameters apply.The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references,the latest edition of the referenced document (including any amendments) applies. EN 1233, Water quality一Determination of chromium – – Atomic absorption spectrometric methods EN ISO 3696:1995, Water for analytical laboratory use一Specification and test methods (ISO 3696:1987)
EN ISO 12846, Water quality 一Determination of mercury一Method using atomic absorption spectrometry (AAS) with and without enrichment (ISO 12846) ISo 3165, Sampling of chemical products for industrial use一Safety in sampling ISO 6206, Chemical products for industrial use一Sampling 一Vocabulary ISO 8288: 1986, Water quality 一Determination of cobalt, nickel, copper, zinc, cadmium and lead – Flame atomic absorption spectrometric methods.This European Standard specifes the minimum purity requirements for sodium hypochlorite used for treating water intended for human consumption. Limits are given for impurities commonly present in the product.Depending on the raw material and the manufacturing process, other impurities may be present and, if so, the user, and when necessary the relevant authorities, shall be notified.Users of the product should check the national regulations to clarifty whether it is of appropriate purity for treating water intended for human consumption, taking into account raw water quality, required dosage, contents of other impurities and additives used in the product that are not stated in this product standard.Limits have been given for impurities and chemical parameters where these are likely to be present in significant quantities from the current production process and raw materials. If the production process or the raw materials bring about the presence of significant amounts of impurities, by-products or additives, the user
shall be notified.BS EN 901 pdf download.