Rechercher

L'ISO 18589-6:2009 spécifie une méthode d'estimation de la radioactivité globale des émetteurs alpha et bêta présents dans les échantillons de sol. Elle s'applique essentiellement aux contrôles systématiques basés sur des mesures comparatives ou aux études de site préliminaires destinées à guider le personnel en charge des essais dans le choix des échantillons de sol à mesurer en…

ISO/TR 10989:2009 covers: the results of a study into, and comparison between, existing classification and categorization schemes for reference materials, the development of reference material (RM) features and characteristics upon which a harmonized and consistent categorization scheme could be based, and approaches for making the categorization scheme adaptive to new RM needs and…

ISO/TS 22745-11:2009 provides guidelines that are recommended for the development of terminology for concepts in an open technical dictionary (OTD). Compliance with these guidelines is not required in order for a term or definition to be included in an OTD. These guidelines are provided as a framework for developers of industrial terminology to ensure that definitions are consistent and…

ISO/TS 22745-1:2009 contains an introduction to ISO/TS 22745. It includes: the scope of ISO/TS 22745; requirements that all open technical dictionaries must follow; a description of the architecture of ISO/TS 22745; an overview of ISO/TS 22745, including a summary of the content of the other parts of ISO/TS 22745; a discussion of the differences between ISO/TS 22745 and ISO 13584, and…

ISO/TS 22745-13:2009 specifies rules for identification of concepts, terms, definitions and images within an open technical dictionary (OTD).

ISO/TS 22745-20:2009 contains procedures for maintenance of an open technical dictionary (OTD). It includes procedures to: register a consensus organization so that it can contribute terminology to an OTD; add a new concept, with associated terminology, to an OTD; add terminology to an existing concept in an OTD; mark terminology for an existing concept as deleted; merge concepts.

ISO 3356|IDF 63:2009 specifies a method for the determination of alkaline phosphatase activity in milk. The method applies to alkaline phosphatase activities not less than 1 µg of phenol per millilitre. The method is also suitable for the determination of alkaline phosphatase activity in milk powder, buttermilk and buttermilk powder, whey and whey powder.

ISO 18589-4:2009 describes a method for measuring plutonium 238 and 239 + 240 isotopes in soil by alpha spectrometry samples using chemical separation techniques. The method can be used for any type of environmental study or monitoring. These techniques can also be used for measurements of very low levels of activity, one or two orders of magnitude less than the level of natural alpha-emitting…

ISO 18589-5:2009 describes the principles for the measurement of the activity of 90Sr in equilibrium with 90Y and 89Sr, pure beta-emitting radionuclides, in soil samples. Different chemical separation methods are presented to produce strontium and yttrium sources, the activity of which is determined using proportional counter (PC) or liquid scintillation counter (LSC). The selection of the…

ISO 18589-6:2009 provides a method that allows an estimation of gross radioactivity of alpha- and beta-emitters present in soil samples. ISO 18589-6:2009 applies, essentially, to systematic inspections based on comparative measurements or to preliminary site studies to guide the testing staff both in the choice of soil samples for measurement as a priority and in the specific analysis methods for…