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NOM-008-SE-2021, General system of units of measurement (cancels NOM-008-SCFI-2002). .
Published in the DOF on Dec. 29, 2023 – Effective July 29, 2024

CLARIFICATION PUBLISHED DOF on 23-04-2024

This Standard is under the oversight of the Secretaría de Economía-  Secretary of Economy

 

LAW, REGULATION, OR NOM - what is the difference?  

 

 

NORMA OFICIAL MEXICANA NOM-008-SE-2021 “SISTEMA GENERAL DE UNIDADES DE MEDIDA (CANCELA A LA NOM-008-SCFI-2002)”

OFFICIAL MEXICAN STANDARD NOM-008-SE-2021 “GENERAL SYSTEM OF UNITS OF MEASUREMENT (CANCELS NOM-008-SCFI-2002)”

ÍNDICE DEL CONTENIDO

TABLE OF CONTENTS

0.         Introducción

0.         Introduction

1.         Objetivo y campo de aplicación

1.         Objective and field of application

2.         Referencias normativas

2.         Legislative references

3.         Términos y definiciones

3.         Terms and definitions

4.         Generalidades

4.         General Provisions

5.         Unidades de medida del SGUM. Magnitudes, definiciones y símbolos

5.         GSUM Units of Measurement. Magnitudes, definitions and symbols

6.         Prefijos para usarse con las unidades del SI y reglas de escritura

6.         Prefixes for use with SI units and writing rules

7.         Vigilancia

7.         Oversight

8.         Concordancia con Normas Internacionales

8.         Concordance with International Standards

Apéndice A (Informativo) La naturaleza de las siete constantes definitorias

Appendix A (Informative) The nature of the seven defining constants

9.         Bibliografía

9.         Bibliography

ÍNDICE DE TABLAS

INDEX OF TABLES

Tabla 1- Magnitudes y unidades de base del SGUM, y símbolos de las unidades de base

Table 1- Magnitudes and base units of the GSUM, and symbols of the base units

Tabla 2 - Constantes definitorias

Table 2 - Defining constants

Tabla 3- Definiciones de las unidades de base

Table 3- Definitions of base units

Tabla 4- Ejemplos de unidades SI derivadas coherentes expresadas a partir de las unidades SI de base

Table 4- Examples of coherent derived SI[1] units expressed from the base SI units

Tabla 5- Unidades SI derivadas coherentes con nombres y símbolos especiales

Table 5- Consistent derived SI units with special names and symbols

Tabla 6- Ejemplos de unidades SI derivadas coherentes cuyos nombres y símbolos contienen unidades SI derivadas coherentes con nombres y símbolos especiales

Table 6 - Examples of coherent derived SI units whose names and symbols contain coherent derived SI units with special names and symbols

Tabla 7- Unidades no pertenecientes al SI cuyo uso con el SI se acepta

Table 7- Non-SI units whose use with the SI is accepted

Tabla 8- Prefijos del SI

Table 8- SI prefixes


 

[1] The International System of Units (SI) is the modern form of the metric system and the world’s most widely used system of measurement.

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