

Cover 

Preface 

Check List for Reviewing Manuscripts (Chapter 11) 
1. 
Introduction 

1.1 

Purpose of Guide 
1.2 
Outline of Guide 
2. 
NIST policy on the Use of the SI 

2.1 

Essential data 

2.1.1 Tables and graphs 
2.2 
Descriptive information 
3. 
Other Sources of Information on the SI 

3.1 

Publications 
3.2 
Fundamental Constants Data Center 
3.3 
Metric Program 
4. 
The Two Classes of SI Units and the SI Prefixes 

4.1 

SI base units 
4.2 
SI derived units 
4.2.1 SI derived units with special names and symbols
4.2.1.1 Degree Celsius 
4.2.2 Use of SI derived units with special names and symbols 
4.3 
Decimal multiples and submultiples of SI units: SI prefixes 
5. 
Units Outside the SI 

5.1 

Units accepted for use with the SI 

5.1.1 Hour, degree, liter, and the like 
5.1.2 Neper, bel, shannon, and the like 
5.1.3 Electronvolt, astronomical unit, and unified atomic mass unit 
5.1.4 Natural and atomic units 
5.2 
NonSI units accepted for use with the SI 
5.3 
Units not accepted for use with the SI 

5.3.1 CGS units 
5.3.2 Other unacceptable units 
5.4 
The terms "SI Units" and "acceptable units" 
6. 
Rules and Style Conventions for Printing and Using Units 

6.1 

Rules and style conventions for unit symbols 

6.1.1 Typeface 
6.1.2 Capitalization 
6.1.3 Plurals 
6.1.4 Punctuation 
6.1.5 Unit symbols obtained by multiplication 
6.1.6 Unit symbols obtained by division 
6.1.7 Unacceptability of unit symbols and unit names together 
6.1.8 Unacceptability of abbreviations for units 
6.2 
Rules and style conventions for SI prefixes 

6.2.1 Typeface and spacing 
6.2.2 Capitalization 
6.2.3 Inseparability of prefix and unit 
6.2.4 Unacceptability of compound prefixes 
6.2.5 Use of multiple prefixes 
6.2.6 Unacceptability of standalone prefixes 
6.2.7 Prefixes and the kilogram 
6.2.8 Prefixes with the degree Celsius and units accepted for use with the SI 
7. 
Rules and Style Conventions for Expressing Values of Quantities 

7.1 

Value and numerical value of a quantity 
7.2 
Space between numerical value and unit symbol 
7.3 
Number of units per value of a quantity 
7.4 
Unacceptability of attaching information to units 
7.5 
Unacceptability of mixing information with units 
7.6 
Symbols for numbers and units versus spelledout names of numbers and units 
7.7 
Clarity in writing values of quantities 
7.8 
Unacceptability of standalone unit symbols 
7.9 
Choosing SI prefixes 
7.10 
Values of quantities expressed simply as numbers: the unit one, symbol 1 

7.10.1 Decimal multiples and submultiples of the unit one 
7.10.2 %, percentage by, fraction 
7.10.3 ppm, ppb, and ppt 
7.10.4 Roman numerals 
7.11 
Quantity equations and numericalvalue equations 
7.12 
Proper names of quotient quantities 
7.13 
Distinction between an object and its attribute 
7.14 
Dimension of a quantity 
8. 
Comments on Some Quantities and Their Units 

8.1 

Time and rotational frequency 
8.2 
Volume 
8.3 
Weight 
8.4 
Relative atomic mass and relative molecular mass 
8.5 
Temperature interval and temperature difference 
8.6 
Amount of substance, concentration, molality, and the like 

8.6.1 Amount of substance 
8.6.2 Mole fraction of B; amountofsubstance fraction of B 
8.6.3 Molar volume 
8.6.4 Molar mass 
8.6.5 Concentration of B; amountofsubstance concentration of B 
8.6.6 Volume fraction of B 
8.6.7 Mass density; density 
8.6.8 Molality of solute B 
8.6.9 Specific volume 
8.6.10 Mass fraction of B 
8.7 
Logarithmic quantities and units: level, neper, bel 
8.8 
Viscosity 
8.9 
Massic, volumic, areic, lineic 
9. 
Rules and Style Conventions for Spelling Unit Names 

9.1 

Capitalization 
9.2 
Plurals 
9.3 
Spelling unit names with prefixes 
9.4 
Spelling unit names obtained by multiplication 
9.5 
Spelling unit names obtained by division 
9.6 
Spelling unit names raised to powers 
9.7 
Other spelling conventions 
9.8 
Unacceptability of applying mathematical operations to unit names 
10. 
More on Printing and Using Symbols and Numbers in Scientific and Technical Documents 

10.1 

Kinds of symbols 

10.1.1 Standardized quantity symbols 
10.1.2 Standardized mathematical signs and symbols 
10.2 
Typefaces for symbols 

10.2.1 Quantities and variables  italic 
10.2.2 Units  roman 
10.2.3 Descriptive terms  roman 
10.2.4 Sample equations showing correct type 
10.3 
Greek alphabet in roman and italic type 
10.4 
Symbols for the elements 

10.4.1 Typeface and punctuation for element symbols 
10.4.2 Subscripts and superscripts on element symbols 
10.5 
Printing numbers 

10.5.1 Typeface for numbers 
10.5.2 Decimal sign or marker 
10.5.3 Grouping digits 
10.5.4 Multiplying numbers 
Appendix A 
Definitions of the SI Base Units 

A.1 

Introduction 
A.2 
Meter 
A.3 
Kilogram 
A.4 
Second 
A.5 
Ampere 
A.6 
Kelvin 
A.7 
Mole 
A.8 
Candela 
Appendix B 
Conversion Factors 

B.1 

Introduction 
B.2 
Notation 
B.3 
Use of conversion factors 
B.4 
Organization of entries and style 
B.5 
Factor for converting motor vehicle efficiency 
B.6 
U.S. survey foot and mile 
B.7 
Rules for rounding numbers and converted numerical values of quantities 

B.7.1 Rounding numbers 
B.7.2 Rounding converted numerical values of quantities 
B.8 
Factors for units listed alphabetically 
B.9 
Factors for units listed by kind of quantity or field of science 
Appendix C 
Comments on the References of Appendix D  Bibliography 

C.1 

Defining document for the SI: BIPM SI Brochure 
C.2 
United States version of defining document for the SI: NIST SP 330 
C.3 
ISO and IEC 
C.4 
ANSI/IEEE SI10 
C.5 
Federal Register notices 
C.6 
Federal Standard 376B 
C.7 
2006 CODATA values of the fundamental constants 
C.8 
Uncertainty in measurement 
Appendix D 
Bibliography 

Footnotes 