GB/T 2900.91-2015 English PDF

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GB/T 2900.91-2015: Electrotechnical terminology -- Quantities and units
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Basic data

Standard ID: GB/T 2900.91-2015 (GB/T2900.91-2015)
Description (Translated English): Electrotechnical terminology -- Quantities and units
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K04
Classification of International Standard: 01.040.07
Word Count Estimation: 25,281
Date of Issue: 2015-09-11
Date of Implementation: 2016-04-01
Quoted Standard: ISO/IEC Guide 99-2007; BIPM, the International System of Units (SI), 8th Edition, 2006
Adopted Standard: IEC 60050-112-2010, IDT
Regulation (derived from): National Standard Announcement 2015 No.25
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the basic concepts of the generic term, the International System of Units (SI) terms, quantities and units of terms and definitions and metrology quantities and units. This standard applies to electrical, electronic, electrical and communication in all areas.

GB/T 2900.91-2015: Electrotechnical terminology -- Quantities and units

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Electrotechnical terminology Quantities and Units) ICS 01.040.07 K04 National Standards of People's Republic of China Electrotechnical terminology Quantities and Units (IEC 60050-112.2010, Internationalelectrotechnicalvocabulary- Part 112. Quantitiesandunits, IDT) Issued on. 2015-09-11 2016-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 3.1 Basic Concepts 1 10 3.2 International System of Units 3.3 The amount of names and definitions of terms 14 3.4 Metrology 16 Index 18

Foreword

GB/T 2900 "Electrotechnical term" multi-part. This part is the first part of 91 GB/T 2900's. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method identical with IEC 60050-112.2010 "International Electrotechnical vocabulary and units." The item number and some of the terminology IEC 60050-112.2010 consistent. This part of the National Electrotechnical Terminology Standardization Technical Committee (SAC/TC232) and focal points. This section is drafted. the machine Productivity Promotion Center, China Institute of Metrology. The main drafters of this section. Yang Fu, Lu Zuliang, Xiaxue Jiang, Li Kwai-fong. Electrotechnical terminology Quantities and Units

1 Scope

GB/T 2900 This section gives a general term for quantities and units of the International System of Units (SI) terms, quantities and units of terms and definitions Some basic concepts of justice and metrology. This section applies to electrical, electronic, electrical and communication in all areas.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. ISO /IEC Guide 99.2007, International vocabulary of metrology - Basic concepts related terms (Internationalvocabularyofme- trology-Basicandgeneralconceptsandassociatedterms, VIM) BIPM, the International System of Units (SI), 8th Edition, 2006

3 Terms and Definitions

3.1 Basic Concepts 112-01-01 Quantity quantity Characteristic phenomenon object or substance, with a number and a reference to the object that best represents the size of this property. [ISO /IEC GUIDE99.2007,1.1, MOD] Note 1. The amount of general concepts can be divided into several layers particular concept, the table below, the left side of the table lists the "quantity" of specific concepts, they are also the right of the table The general concept is more specific concepts. Length, l Radius, the radius r of the circle A, of rA is r or (A) Wavelength, λ sodium D radiation, λD or λ (D; Na) Energy, E Kinetic energy, T given system kinetic energy of particle i, Ti Heat, Q i is passed to heat water samples, Qi Charge, Q the charge of a proton, e Resistance, R the resistance of resistor i, Ri Amount of substance concentration of the kind B, cB amount of substance concentration of ethanol in wine sample i, ci (C2H5OH) Things number, N i a given number of turns of the coil, Ni Rockwell C hardness (150kg payload), HRC (150kg) of steel sample i Rockwell C hardness, HRCi (150kg) Note 2. The reference object may be a unit of measurement, measurement procedures, the standard substance (ISO /IEC GUIDE99.2007,5.13) or combinations thereof. Said the size of the amount The "value" (see 112-01-28). In common with the unit of measurement of the case, the amount of size is a product of value and a unit of measure. Note 3. The amount defined here is a scalar but vector (to) the amount or the tensor (whose components are the amount) is also considered to be the amount [see vector (102-03-21) and tensor (102-03- ......

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