International Standard Organization classification

The International Standard Organization classification of atmospheric corrosion... 

The recommendations of the International Standards Organization (ISO) covering mineral-oil lubricants for reciprocating compressors are set out in ISO DP 6521, under the ISO-L-DAA and ISO-L-DAB classifications. These cover applications wherever air-discharge temperature are, respectively, below and above 160°C (329°F). For mineral-oil lubricants used in oil-flooded rotary-screw compressors the classifications ISO-L-DAG and DAH cover applications where temperatures are, respectively, below 100°C (212°F) and in the 100-110°C range. For more severe applications, where synthetic lubricants might be used, the ISO-L-DAC and DAJ specifications cover both reciprocating and oil-flooded rotary-screw requirements. 

AGM A specifications covering gear lubricants. The viscosity ranges of the AGMA numbers conform to the International Standards Organization (ISO) viscosity classification system (see ISO viscosity classification system). AGMA numbers and their viscosity ranges are as follows ... 

The International Standard Organization (ISO) developed a corrosivity classification system verified through exposure that has been carried worldwide. The ISO classification system is based on the assumptions that only the time of wetness and the concentration of pollutants in the atmosphere, SO2 and chlorides, control the corrosion rates of metals. Table 10.1 shows the Hst of ISO standards related to atmospheric corrosion of metals [39]. 

ISO. 2011. Brown Coal and Lignites—Classification by Types on the Basis of Total Moisture Content and Tar Yield (ISO 2950). International Standards Organization, Geneva, Switzerland. 

International Standards Organization. (1992a). ISO 9223, Corrosion of Metals and Alloys—Classification of Corrosivity of Atmospheres, 20 pp. 

INTERNATIONAL STANDARDS/ ORGANIZATION SAFETY CLASSIFICATION OF 1 C FUNCTIONS SYSTEMS IN NUCLEAR PLANTS ... 

ISO (2005) 11760, Classification of Coals, International Standards Organization, Geneva, Switzerland. 

The ISO methodology. A comprehensive corrosivity classification system has been developed by the International Standards Organization (ISO). The applicable ISO standards are listed in Table 2.1. Verification and evolution of this system is ongoing through the largest exposure program ever, undertaken on a worldwide basis. ... 

ISO 1109, Refractory products—classification of dense shaped refractory products. International Standards Organization. Committee TC-33 on Refractories, 1975. 

The United Nations Globally Harmonized System of Classification and Labelling of Chemicals (GHS) includes an internationally standardized guidance procedure on Transformation/Dissolution Protocol (T/DP) for metals and sparingly soluble metal compounds (United Nations, 2007), recently validated by the OECD (Organization for Economic Cooperation and Development). To establish the acute aquatic hazard classification level of a metal-bearing substance under the GHS, data from the T/DP are compared with an acute ecotoxicity reference value (ERV) derived under conditions similar to those of the T/DP. 

ISO International Organization for Standards, an international association of national/regional standards organizations that publishes standards for fuel characterization and classification. 

Det Norske Veritas, Germanischer Lloyd, and the American Bureau of Shipping, along with other members of the International Association of Classification Societies, verify compliance with statutory regulations and recognized standards. These organizations services include verification... 

International Organization for Standardization (ISO) classifications are widely accepted and shall be introduced in the following sections. Before this can be done, it is instructive to define the different bases of analysis reporting that are firequently used. 

The classification of motor oils has not been completed in the ISO standard because the technical differences between motors in different parts of the world, particularly Europe and the United States, make the implementation of a single system of classification and specifications very difficult. In practice, different systems coming from national or international organizations are used. The best known is the SAE viscosity classification from the Society of Automotive Engineers, developed in the United States. 

All of the environmentally-controlled areas of pharmaceutical manufacturing and its related areas should meet the requirement of air cleanliness, which is expressed as classifications specified by official standards, such as ISO (International Organization of Standardization) or FED-STD (U.S. federal standard) 209, and/or GMP. The classification has a close relationship with the air treatment procedures and construction features. 

Classification of Airborne Particulates, in Cleamooms and Associated Controlled Environments—Part 1, ISO 14644-1, Geneva International Organization for Standardization (1999). 

In this scheme, the primary reference material is defined as a chemical substance of the highest (and known) purity, or a well-characterized substance in a matrix, This classification of materials is, however, fairly arbitrary. It is ideal when used in connection with standards characterized in terms of biological activity. Primary standards are thus the International Reference Preparations (IRP) produced by the World Health Organization (WHO). In this case the primary standard for a particular antibiotic is the WHO reference preparation which constitutes the unit of that antibiotic. When people wish to use it they have to prepare a large batch of samples calibrated to the primary. This is then called a secondary standard. However, for well-defined chemical parameters, the term certified reference material is preferred. 

The components of soils and rocks have different size, shape, and quality. The particle size of organic components usually is in the colloid range (<500 nm) mineral components have different dispersity. The first classification system of soils on the basis of particle size was done by Atterberg (1905). Practically, this classification has been used until now, though some countries have their own classifications, considering their widespread soil types. The size of soil particles will also determine how the soil fraction is named (e.g., clay, sand, silt, rock, etc.). Table 1.6 provides these names along with the standard diameter of the particles for the international classification system. 

---