A51 量和单位 标准查询与下载



共找到 268 条与 量和单位 相关的标准,共 18

This standard was developed by the Standards and Metric Practices Subcommittee of the Metrication Operating Committee, which operates under the Interagency Council on Metric Policy.

PREFERRED METRIC UNITS FOR GENERAL USE BY THE FEDERAL GOVERNMENT

ICS
CCS
A51
发布
1993-01-27
实施

Signs and symbols used in writing mathematical text are defined.

Mathematical Signs and Symbols for Use in Physical Sciences and Technology

ICS
01.075
CCS
A51
发布
1993
实施

Quantities and units. Part 12 : characteristic numbers.

ICS
01.060
CCS
A51
发布
1992-12-01
实施
1992-12-20

Quantities and units. Part 12 : solid state physics.

ICS
01.060;07.030
CCS
A51
发布
1992-12-01
实施
1992-12-20

This document is part 8 of ISO 31, which deals with the quantities and units in the various fields of science and technology.

Quantities and units; part 8: physical chemistry and molecular physics

ICS
01.060;07.030
CCS
A51
发布
1992-12
实施

Describes the International System of Units SI, recommends selected decimal multiples and submultiples for general use, gives certain other units which may be used with the SI, and quotes the definitions of the SI base units.

SI units and recommendations for the use of their multiples and of certain other units

ICS
01.060
CCS
A51
发布
1992-11
实施

Gives names and symbols for 70 quantities and units. Where appropriate, conversion factors are also given.

Quantities and units; part 10: nuclear reactions and ionizing radiations

ICS
01.060;07.030
CCS
A51
发布
1992-11
实施

Gives name, symbol and definition for 25 selected characteristic numbers used for the description of transport phenomena.

Quantities and units; part 12: characteristic numbers

ICS
01.060
CCS
A51
发布
1992-09
实施

Gives name, symbol and definition for 62 quantities and units of solid state physics. Where appropriate, conversion factors are also given.

Quantities and units; part 13: solid state physics

ICS
01.060;07.030
CCS
A51
发布
1992-09
实施

Gives name, symbol and definition for 43 quantities and units of heat. Where appropriate, conversion factors are also given. Annex A includes units in the CGS system with special names, Annex B units based on the foot, pound and second and some other units, Annex C other units given for information, especially regarding the conversion factor.

Quantities and units; part 4: heat

ICS
01.060;17.200.10
CCS
A51
发布
1992-09
实施

Gives name, symbol and definition for 38 quantities and units of mechanics. Where appropriate, conversion factors are also given. Annex A includes units based on the foot, pound and second and some other units, Annex B other units given for information, especially regarding the conversion factor.

Quantities and units; part 3: mechanics

ICS
01.060;07.030
CCS
A51
发布
1992-09
实施

Gives name, symbol and definition for 17 quantities and units of periodic and related phenomena. Where appropriate, conversion factors are also given.

Quantities and units; part 2: periodic and related phenomena

ICS
01.060;07.030
CCS
A51
发布
1992-09
实施

Gives name, symbol and definition for 21 quantities and units of space and time. Where appropriate, conversion factors are also given. Annex A includes units based on the foot, pound and second and some other units, Annex B other non-SI units given for information, especially regarding the conversion factor.

Quantities and units; part 1: space and time

ICS
01.060;07.030
CCS
A51
发布
1992-09
实施

Gives name, symbol and definition for 51 quantities and units of atomic and nuclear physics. Where appropriate, conversion factors are also given. Annex A includes names of symbols of the chemical elements, Annex B the notation of symbols for chemical elements and nuclides, Annex C the original names and symbols for nuclides of radioactive series, Annex D examples of relations in different systems of equations using different systems of units.

Quantities and units; part 9: atomic and nuclear physics

ICS
01.060;07.030
CCS
A51
发布
1992-09
实施

Gives name, symbol and definition for 39 quantities and units of acoustics. Where appropriate, conversion factors are also given.

Quantities and units; part 7: acoustics

ICS
01.060;17.140.01
CCS
A51
发布
1992-09
实施

Gives name, symbol and definition for 57 quantities and units pertaining to light and related electromagnetic radiations. Where appropriate, conversion factors are also given.

Quantities and units; part 6: light and related electromagnetic radiations

ICS
01.060;07.030
CCS
A51
发布
1992-09
实施

Gives general information about principles concerning physical quantities, equations, quantity and unit symbols, and coherent unit systems, especially the International System of Units, SI, including recommendations for printing symbols and numbers. Annex A includes a guide to terms used in names for physical quantities, Annex B a guide to the rounding of numbers, Annex C international organizations in the field of quantities and units.

Quantities and units; part 0: general principles

ICS
01.060
CCS
A51
发布
1992-08
实施

American national standard for metric practice

ICS
01.060.10
CCS
A51
发布
1992
实施

Prezentul standard stabile?te metodele de determinare a con?inutului de vanadiu din ?i?ei, frac?iuni distilate, reziduuri, picur? ?i cocs petrol ?i anume: - metoda prin spectrografie de emisie pentru picur? ?i cocs de petrol, aplicabil? pentru orice con?i

Crude oil and petroleum products. Vanadium content determination

ICS
CCS
A51
发布
1991-08-01
实施

Prezentul standard stabile?te metoda de determinare a urmelor de clor din produse petroliere lichide cu temperatura ini?ial? de distilare min. 165°C, pentru con?inuturi de clor de 50...1000 fig/g.

Liquid petroleum products. Chlorine traces determination

ICS
CCS
A51
发布
1991-06-01
实施



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