INMETRO acts as Executive Secretariat of the National Council of Metrology, Standardization and Industrial
Quality (CONMETRO), an inter-ministerial collegiate entity which is the normative agency of the National System of
Metrology, Standardization and Industrial Quality (SINMETRO).
SINMETRO, CONMETRO and INMETRO were created by Brazilian Law 5966, of 11 of December 1973. In this occasion, the
INMETRO substitutes the National Institute of Weights and Measurements (INPM), significantly extending its range of
performance for the Brazilian society.
In the scope of its ample institucional mission, INMETRO aims to fortify national companies, increasing their
productivity by means of the adoption of mechanisms destined to the improvement of the quality of products and
services. Being so, INMETRO mission incorporates the promotion of the quality of life of the Brazilian citizens and
the competitiveness of the Brazilian economy, by means of Metrology and
Evaluation of Conformity concepts and mechanisms.
Some of the main attributions of INMETRO are:
- To execute the Brazilian Metrology and Evaluation of Conformity policies;
- To verify the observance of the technical and legal requirements related to measurement units and methods
and instruments, as well as its application to material products;
- To keep the standards of the units of measurement, as well as to implement and keep the chain of
traceability of measurement unit standards in the country, so as to guarantee that they are internally
consistent and compatible with equivalent international standards, aiming at, in the primary level, to its
universal acceptance and, in the secondary level, to its use as supporting the productive sectors of the
economy, with a focus in the quality of goods and services;
- To fortify the participation of Brazil in the related Metrology and Evaluation of Conformity international
initiatives, and promoting the interchange with international entities and organisms;
- To act as CONMETRO Executive Secretariat, providing technical and administrative support to its advisory
- To foment the use of quality management methods and techniques in Brazilian companies;
- To plan and execute the activities of accreditation (credenciamento) of calibration and essay
laboratories, proficiency essay suppliers, and organisms of certification, inspection, training and other
activities necessary to the development of technological services infrastructure in Brazil; and
- To co-ordinate, in the scope of SINMETRO, the obligatory and voluntary certification of products,
processes, services and the voluntary certification of staff.
During the first Empire, several attempts had been made aiming to the standardization of measurement units used
in Brazil, but only in 26 of June 1862, emperor Dom Pedro II promulgated the Imperial Law nº 1157 and with it
officialized, in all the domestic territory, the French decimal metric system. Brazil was one of the first nations to
adopt the new system, that would be later used in the whole world.
With the following century industrial growth, it became necessary to create more efficient instruments of
control in the country, so as to stimulate and to protect producers and consumers. Thus, in 1961, the INPM -
Instituto Nacional de Pesos e Medidas (National Institute of Weights and Measurements) was created, implanting the
Brazilian network of legal metrology and quality control, establishing the International System of Units (SI) in
the Brazilian territory. Soon after, it became clear that it was necessary also to follow the international trends
related to technological advances, accuracy and, mainly, attendance to consumer requirements. It was necessary, in
other words, to develop and implement Evaluation of Conformity concepts.
In 1973, INMETRO was created, in complementation to the CIP - Inter-ministerial Commission of Prices, including
in its ample institucionalthe scope, the objective to strengthen national companies, increasing its profits by
means of the protection to consumer rights and improvement of the quality of available products.