Frequently Asked Questions

CEN/TC 133/WG 31 is a Working Group within the European Committee for Standardization (CEN). It is named "Copper tubes for water, gas and sanitation" and is responsible for: Standardization of copper tubes for water, gas, sanitary and heating applications, air conditionary, refrigeration. This committee has published 1 standards.

CEN/TC 133/WG 31 develops CEN standards. The scope of work includes: Standardization of copper tubes for water, gas, sanitary and heating applications, air conditionary, refrigeration. Currently, there are 1 published standards from this working group.

The European Committee for Standardization (CEN) is a public standards organization that brings together the national standardization bodies of 34 European countries. CEN provides a platform for developing European Standards (ENs) and other technical documents in relation to various products, materials, services, and processes, supporting the European Single Market.

A Working Group in CEN is a specialized group responsible for developing standards or technical work within a defined scope. These bodies bring together international experts to create consensus-based standards that support global trade, safety, and interoperability.