Carlos Ibarra
José Mejía

Clarification to the Mexican Official Standard NOM-008-SE-2021 “General System of Units of Measure”(Replaces NOM-008-SCFI-2002)

The purpose of this note is to inform you about the recent clarification to the Mexican Official Standard NOM-008-SE-2021, published in the Official Gazette of the Federation on December 29th, 2023, and clarified on April 10th, 2024. This standard, which replaces the previous NOM-008-SCFI-2002, is fundamental for the standardization and accuracy of measurement units in Mexico.

Added Content

Specific changes made to Tables 5 and 8 include adjustments in derived units and prefixes. For instance, in Table 5, the unit for “electrical resistance” has changed the symbol from “O” to “W” for ohm. In Table 8, the prefixes “deca,” “hecto,” and “kilo” have been adjusted to “da,” “h,” and “k,” respectively. These modifications are critical for aligning units and prefixes with the conventions of the International System of Units (SI), which is essential for maintaining uniformity and accuracy in scientific and technical applications worldwide.

Practical Impact

The clarification to NOM-008-SE-2021 is of utmost importance to ensure precision in the regulatory and operational environment of key sectors. The correction in the symbolism and naming of measurement units reinforces accuracy in critical applications, such as in precision engineering and scientific research, where data integrity is paramount.

For the manufacturing sector, these normative corrections could mean improvements in the calibration of equipment and measurement systems, thus optimizing production processes and ensuring compliance with both national and international standards.

In summary, this update not only improves normative coherence but also boosts competitiveness by ensuring that measurement practices in Mexico are aligned with global best practices.

For additional details, please refer to the Firm’s original alert regarding NOM-008-SE-2021, by clicking here.

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Written by:

Partner

Carlos is Founder and Partner at Ibarra del Paso Gallego, where he specializes in Real…

Associate

José is an Associate at Ibarra del Paso Gallego, with expertise in Real Estate and…

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