IEEE/ASTM SI 10-1997 Standard for Use of the International System of Units (SI): The Modern Metric System -Description
Abstract: Guidance for the use of the modern metric system is given. Known as the International System of Units (abbreviated SI), the system is intended as a basis for worldwide standardization of measurement units. Information is included on SI, a list of units recognized for use with SI, and a list of conversion factors, together with general guidance on proper style and usage.
Keywords: conversion factors, International System, International System of Units, metric practice, metric system, rounding, SI, Système International d’Unités
Content
1. Overview
2. SI units and symbols
2.1 Classes of units
2.2 Base units
2.3 Derived units
2.4 SI
prefixes
2.4.1 Unit of
mass
3. Use of SI
3.1 General
3.2 Application of SI
prefixes
3.2.1 General
3.2.2 Selection
3.2.3 Prefixes in compound units
3.2.4 Compound
prefixes
3.2.5 Powers of units
3.2.6 Prefixes defined as
powers of two
3.3 Other units
3.3.1 Units from other systems
3.3.2 Units in use with SI (see Table 6)
3.3.3 Units in use temporarily with SI (see Table 7)
3.3.4 Units and names that are not to be used
3.4 Some comments concerning quantities and units
3.4.1 Mass,
force, and
weight
3.4.2 Temperature
3.4.3 Nominal
dimensions
3.4.4 Quantities and units used in rotational mechanics
3.4.5 Work
3.4.6 Impact
energy absorption
3.4.7 Pressure and
vacuum
3.4.8 Quantities expressed as pure numbers
3.5 Style and usage
3.5.1 Rules for writing unit symbols
3.5.2 Rules for writing unit names
3.5.3 Units formed by multiplication and division
3.5.4 Numbers
3.5.5 Attachments to unit symbols
Annex A Tables of conversion factors
A.1 General
A.2 Notation
A.3 Use
A.4 Tables
A.4.1 Organization
A.4.2 Notes
Annex B Rules for conversion and
rounding
B.1 Terminology
B.2 Introduction to conversion
B.3 Significant digits
B.4 Operations on data
B.4.1 Addition and subtraction
B.4.2 Multiplication and division
B.4.3 Integers
B.5 Accuracy and
rounding
B.5.1 General conversion
B.5.2 Special cases
B.5.3 Conversion and
tolerances
B.5.4 Temperature
B.6 Rounding values
Annex C Comments concerning the application of the International
System of Units (SI)
C.1 Advantages of SI
C.2 Selection of units
C.3 Definitions of SI
base units
C.4 Definitions of SI
derived units with special names
C.5 Comments on angle
C.6 Comment on spelling
C.7 Comments on
mass,
force, and
weight
C.7.1 Distinction between units for
mass and
force
C.7.2 Weight
C.7.3 Load
C.7.4 Capacity rating
Annex D Development of the International System of Units (SI)
D.1 History
D.2 The International Bureau of
Weights and Measures (BIPM)
