Normas para abastecimiento de agua
Generally speaking, the reason for establishing standards is to facilitate the transaction between producer and consumer through the technical definition of a product, service, or procedure. The reason for formulating standards is to serve the interests of large segments of society in a dynamic fashion, based on consensus. Standards should not be confused with laws or regulations, which usually are a statement of principles and are difficult to review. The formulation and adoption of standards for water supply in the developing countries will be made easier if the following is borne in mind: a) there is some existing standard for almost every human activity which can serve as starting point; b) standardization can start at any point and proceed according to the most pressing needs; and c) sufficient experience is available in the ways and procedures by which effective standards can be achieved. The standards which orginate through the natural processes of tradition, evolution, or custom are generally unsatisfactory because resources are wasted in the process and they create confusion. In the developing countries attempts at standardization should be given every possible cooperation by supporting the agency concerned, or by promoting the establishment of one where none exists. The writing down of standards, and training programs directed at the different levels will also be useful
Standards for water supply
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Lightbown, J. W; Kogut, M; Mussett, M. V (1967)At the request of the WHO Expert Committee on Biological Standardization six laboratories situated in four countries undertook a collaborative study of two samples of a common batch of oleandomycin, of which the first was ...
Castillo, Cecilia; Atalah, Eduardo; Riumallo, Jose; Castro, Rene (1996)The work reported here sought to describe the feeding patterns of Chilean children up to 18 month old and their relation to nutritional status. To this end, a survey was conducted in 1993 of 9 330 Chilean children under ...
Mari, Jair de Jesus (1988)A review is presented of the principal studies from the last two decades on the magnitude and characteristics of psychiatric disorders observed in primary care centers, and a comparison is made of the prevalence of psychiatric ...