SI units International System

SI units International system of units based on the meter, kilogram, second, ampere, kelvin, candela, mole, radian, and steradian. 

SI units International System of units based on the metric system and units derived from the metric system. (A2.1)... 

SI units International System of units based on the metric system and units derived from the metric system. (A2.1) Side chain (of amino acid) the hydrocarbon group on an amino acid represented by H, CH3, or a more complex substituent. (21.6)... 

SI Units International System of Units was established in 1973-74 to develop a uniform method of reporting results worldwide. The basic units are metre (m), kilogram (kg), second (s), ampere (A), Kelvin (K), mole (mol) and candela (cd). Acceptable units outside the SI system are litre (1), grams per litre (g/1), moles per litre (M), day (d), hour (h) and minute (min). 

The specific types of metric units used in this book to designate metric equivalents of quantitative values given in U.S. units are SI units (International System of Units). (See Table 1-3 and Appendix 4.)... 

SI units. International System of Units. A system of units based on metric units. (1.3) skeletal structure. A stiucture in which straight lines represent carbon-carbon bonds. (10.3) smectic. Containing molecules ordered in two dimensions. The molecules are aligned parallel to one other and are further arranged in layers that are parallel to one another. (25.3)... 

SI units International System of units, based on metric values (http //physics.nist.gov/cuu/Units/ index.html). 

All values of the IRMM Isotopic Reference Materials are traceable to the SI (the international system of base quantities and base units). Isotopic measurement results corrected by means of these Isotope Ratio Reference Materials have reduced (ISO/BIPM) uncertainties. Isotopic measruements carried out against these Spike Reference Materials are traceable to the SI, if carried out properly. Further details are available from IRMM website see Chapter 8. 

The Systeme International d Unites (International System of Units) has the abbreviation SI. It includes base units, supplementary and derived units which together form a coherent system of units. Prefixes are used to form decimal multiples and sub-multiples of the SI units. 

SI Systemc International td Unites) (International System of Units)... 

SI the international system of measurement units, including units such as the metre, the kilogram, and the mole from the French Systeme intemationale d unites (Review)... 

From time to time, probably all science students find themselves entangled in a problem of units. For those who have advanced through physical chemistry to the level of this book, these problems have obviously not been insurmountable. It is likely, however, that —along with feelings of frustration—these students have been left with the wish that everyone used the same units, specifically those units with which they are most comfortable. In response to the recognized need for uniformity, IUPAC recommends the use of Systeme international d unites (International System of Units, SI) units, which are essentially standardized mks units. 

Except for temperature and time, nearly all scientific measurements are based on the metric system. In recent years, there has been a concerted international effort to persuade scientists to express all metric measurements in terms ofjust seven basic units, called SI units (for Systeme International). In addition to the seven basic SI units, there are seventeen other common units derived from them that have special names. However, despite the logical arguments that have been put forth for undeviating adherence to SI units, there has not been a strong popular move in this direction. For one thing, each scientist must cope... 

Intensive adverbs, overuse, 25 inter in copolymer names, 242—243 International copyright, 346, 347 International Organization for Standardization (ISO) citing analytical standards, 268 guide to chemical symbols, 249 International research, CAS databases, 410 International System of Units, See SI units International Union of Biochemistry and Molecular Biology, 231 International Union of Pure and Applied Chemistry (IUPAC), 231, 249 Internet editions, ACS journals, 407-408 Internet sites... 

SI units (le Systeme International d Unites) are used to express clinical... 

SI), published in 1973 by the Bureau International des Poids et Mesures, and obtainable from OFFILIB, 48 rue Gay-Lussac, F 75005, Paris 5. An authorized English translation of this, entitled SI, The International System of Units, was prepared jointly in 1973 by the U.S. National Bureau of Standards (Publication 330, available from the Government Printing Office, Washington, D.C. 20402) and by the U.K. National Physical Laboratory (available from Her Majesty s Stationery Office, P.O, Box 569, London SEl 9MH). Other useful publications are Quantities, Units, and Symbols, Royal Society, 6 Carlton House Terrace, London SWIY SAG, 1975 ... 

Units in the text correspond to those in common usage. Many are gradually being replaced by the Systime International (SI) or International System of Units. These recommended units, their symbols, and prefixes indicating multiples and fractions of units, are listed here. 

SI The International System of Units (Systeme International d Unites) is a modernized version of the metric system estabUshed by international agreement. It provides a logical and interconnected framework for aU measurements in science, industry and commerce. Officially abbreviated SI, the system is built upon a foundation of seven base units. 

In 1790, a commission of the French Academy of Science developed a standardized system of weights and measures that defined unitary weights, volumes, and distances on quantities that were deemed unchangeable and that related to each other in some basic manner. This metric system has since developed into the Systeme international d unites (International System of Units abbreviated SI) and is the universal standard recognized and used around the world. 

International System of Units (SI) An international system of units that modifies the metric system. 

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