Standard terminology, definition

Definitions. Physical and chemical agents that combat pathogenic and nonpathogenic microorganisms are often referred to as disinfectants. Attempts to standardize terminology by health agencies in the United States, such as the CDC, the Pood and Dmg Administration (PDA), and the EPA, have resulted in the following definitions. 

ASTM Committee on Terminology, Compilation of ASTM Standard and Definitions, 6th Edition, Philadelphia, 1986. 

Standard terminology provides for the definitions of terms or the descriptions of terms, as well as the explanations of symbols, abbreviations, and acronyms. 

National Committee for Clinical Laboratory Standards. Terminology and Definitions for Use in NCCLS Documents Approved Standard. NCCLS Document NRSCL08-A. Wayne, PA National Committee for Chnical Laboratory Standards, 1998. 

The ASTM have adopted a Standard Terminology Relating to Thermal Analysis (ASTM E 473-99) which is similar in many respects to the ICTAC definitions. 

AAML 1994. Management Information Report MIR 3 Computerized Maintenance Management Systemsfor Clinical Engineering. Arlington, VA, Association for the Advancement of Medical Instrumentation. Bauld T.J. 1987. Productivity Standard terminology and definitions. /. Clin. Eng. 12 139. 

ASTM D4092-01 (ISO 6721) is entitled Standard Terminology for Dynamic Mechanical Measurements on Plastics, DoD Adopted. It contains descriptions of the technical terms for dynamic mechanical property measurements on plastics including solids, melts, and solutions. It is also relatable to ISO 472 Definitions and certain items in ISO 6721-01, Plastics—Determination of Dynamic Mechanical Properties, Part 1, General Principles. Other ASTM/ISO standard test methods for dynamic mechanical analyses are... 

ASTM definitions of technical terms used in the plastics industry are the responsibility of ASTM Committee D20 on Plastics. Its Subcommittee D20.92 on Terminology originated, for example, ASTM dociunent D883-00, Standard Terminology Relating to Plastics. Several of the most important ASTM definitions from that standard related to the degradation of plastics are reproduced here ... 

ASTM F819-10, Standard Terminology Relating to Electrical Protective Equipment for Workers, includes definitions of terms relating to the electrical protective equipment covered under this section. 

ASTM G 32, Method for Vibratory Cavitation Erosion Test— This standard presents a test method for determining the susceptibility of an alloy in an electrolyte to cavitation damage using high-frequency vibration. In general, the rate of erosion is determined by weight loss of the specimen. The method contains terminology definitions, a description of the apparatus, test specimen dimensions and preparation, test conditions, test procedures, interpretation of residts, and report considerations. 

ASTM G 40 ASTM G 73 Standard Terminology Relating to Wear and Erosion Standard Practice for Liquid Impingement Erosion Testing Definition of terms for erosion and wear. Resistance to erosion from impacts of liquid drops or jets. 

Despite this, it is advisable in relation to possible discrepancies in the terminology definitions, to present readers with some notes on the meaning of selected terms based on the standards that are valid in the Slovak Republic, and in a majority of... 

Because of the diverse appHcatioas involving Hquid atomizers, a large vocabulary of terms has evolved ia the spray community. The American Society for Testing and Materials, ASTM Subcommittee E29.04 on Liquid Particle Characterization, has attempted to standardize the terminology relating to atomizing devices (1). The definitions adopted by ASTM are used herein. 

Accuracy and Repeatability Definitions of terminology pertaining to process measurements can be obtained from standard S5I.I from the International Society of Measurment and Control (ISA) and standard RC20-II from the Scientific Apparatus Manufac turers Association (SAMA), both of which are updated periodically. An appreciation of accuracy and repeatability is especially important. Some apphcations depend on the accuracy of the instrument, but other apphcations depend on repeatability. Excellent accuracy imphes excellent repeatabihty however, an instrument can have poor accuracy but excellent repeatability. In some apphcations, this is acceptable, as discussed below. 

Before selecting or sizing a specific control device, a careful evaluation of all aspects of the process and contaminants must be made. Improper terminology can lead to poor design and/or operation of any type of device. A list of contaminant definitions in accordance with the USA Standards Institute includes the following. 

C 0.5012 mol 2 at 15°C). It is clearly unwise to associate a pH meter reading too closely with pH unless under very controlled conditions, and still less sensible to relate the reading to the actual hydrogen-ion concentration in solution. For further discussion of pH mea.surements, see Pure Appl. Chem. 57, 531-42 (1985) Definition of pH Scales, Standard Reference Values, Measurement of pH and Related Terminology. Also C E News, Oct. 20. 1997. p. 6. 

Terminology The International Standards Organization has recently defined a corrosion inhibitor as a chemical substance which decreases the corrosion rate when present in the corrosion system at a suitable concentration, without significantly changing the concentration of any other corrosive agent. This last point is significant since it excludes chemicals employed for deaeration or pH control from the definition of a corrosion inhibitor. On the other hand, it should be noted that the inhibitor is .. . present in the corrosion system. . . , and thus arsenic when added to brasses to prevent dezin-cihcation may be classified as an inhibitor. 

Covington, A. K., R. G. Bates and R. A. Durst, Definition of pH scales, standard reference values, measurement of pH and related terminology, Pure Appl. Chem., 57, 531 (1985). 

In the earlier of the original manuseripts, first published in Pure and Applied Chemistry, whieh make up the chapters of this book, it was the praetiee to cross reference definitions within parentheses as follows (see Definition xx). Whilst beneficial, this led to extensive interruption to the flow of definitions, so throughout this edition of the Compendium of Polymer Terminology and Nomenclature, a practice that is now adopted as standard in the preparation of doeuments under the auspiees of the Subcommittee on Polymer Terminology is used, i.e., terms defined elsewhere in the same chapter are italicized. 

To compile the definitions, a number of sources have been used. A number of the definitions were adapted from an International Organization for Standardization (ISO) manuscript on Plastics Vocabulary [1]. Where possible, the names for properties, their definitions and the symbols for linear viscoelastic properties were checked against past compilations of terminology [2-6]. Other documents consulted include ASTM publications [7-13]. 

The subject of standards dedicated to measurements on conventional scales partly depends on the variety of types in common use that are acceptable for reporting purposes, and partly on the terminology or definitions applied to them. 

Accuracy and Repeatability Definitions of terminology pertaining to process measurements can be obtained from standards available from the Instrumentation, Systems, and Automation Society... 

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