Copper tubes used for the purpose of cooling and air-conditioning systems have been extensively used to provide effective heat exchange and smooth flow of refrigerants within HVAC systems. Copper tubes are an integral component of the cooling loops present in the ACs, chillers, cold storage rooms, and other industrial refrigerators that need consistent performance and strength. Considering their critical importance for the performance and safety of HVAC systems, manufacturers are supposed to meet the standards laid down in IS 10773:2025 according to the Bureau of Indian Standards.
According to the standard set by the Indian Standard, copper tubes have to conform to certain technical specifications related to the purity of material used, dimensions, uniformity of the walls, capability to withstand pressures, resistance to corrosion and overall strength of material. Such conformity guarantees the reliability of the product in terms of its ability to operate effectively while withstanding pressure and temperature changes without developing any defects. The products manufactured in compliance with the BIS QCO and IS 10773:2025 cannot be sold or used in the Indian market; therefore, the ISI mark on the product indicates its conformity with the requirements set out in IS 10773:2025.
IS 10773:2025 is the Indian Standard which lays down the requirements of wrought copper tubes for refrigeration and air conditioning system applications. It makes sure that the copper tubes used in thermal exchange applications can withstand pressure, variation in temperature and continuous operational stresses. As per the BIS (Bureau of Indian Standards), Wrought Copper Tubes are:
It is mandatory for manufacturers, importers and suppliers to have BIS certification of copper tubes used in refrigeration and air conditioning equipment according to IS 10773:2025 guidelines.
Applicable to -
BIS ISI marking of copper tubes as per IS 10773:2025 ensures that the tubes comply with all the safety standards and performance specifications necessary in refrigeration and air conditioning systems.
In order to make sure that wrought copper tubes used in refrigeration and air conditioning perform well, the Bureau of Indian Standards lays down the minimum quality and safety criteria in IS 10773:2025. These certification criteria ensure that the manufacturers always follow stringent standards during manufacturing. The copper tubes must be able to resist continuous pressure, changes in temperatures and wear and tear without any leakage or reduction in performance.
The BIS criteria for testing and checking wrought copper tubes for HVAC and refrigeration applications are provided below -
BIS certification procedure guarantees that copper tubes conform to IS 10773:2025 standards prior to being sold in India. This procedure is regulated by the Bureau of Indian Standards.
Foreign manufacturers need to appoint an Authorized Indian Representative (AIR) in India. This person is the local point of contact for the Bureau of Indian Standards (BIS) and takes care of all rules and compliance work in India.
As soon as the manufacturer gets certified under IS 10773:2025, the ISI mark should be compulsorily marked on the product, coils, and/or packages of the wrought copper tubes for use in refrigeration and air conditioning purposes. In addition to the ISI mark, certain identifying information, like the name of the manufacturer or its trademark, and the number of the Certification Mark Licence (CM/L), should also be marked. The ISI marking indicates that the copper tubes meet all the necessary safety, dimensional and performance requirements specified by the Bureau of Indian Standards.
Note - Marking is typically applied using durable stamping, tagging, or permanent printing to ensure clear identification during handling, storage, and transportation, as per BIS marking requirements.
BIS certification cost for wrought copper tubes used in refrigeration and air conditioning consists of charges for application, factory inspection, product testing, licensing and marking. This charge is imposed by the Bureau of Indian Standards in accordance with Scheme-I rules as per IS 10773:2025.
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These are some of the technical and procedural challenges faced by the manufacturers while getting BIS certification of copper tubes as per IS 10773:2025.
Wrought copper tubes are popularly used in refrigeration and air-conditioning systems due to their better thermal conductivity, corrosion resistance, and high-pressure resistance. They are important to guarantee the efficient cooling performance, safety and reliable performance of such systems. The reason why these products are used is for effective heat exchange and proper performance of air conditioning systems, chillers, and refrigerators. Conformity with IS 10773:2025 means adherence to the rigorous standards associated with material composition, dimensional accuracy, mechanical strength, and pressure resistance of these components.
BIS Certification for Wrought Copper Tubes for Refrigeration and Air-Conditioning purposes (IS 10773:2025) is a certificate attesting to conformity to Indian quality and safety standards and enabling the manufacturer to put the ISI Mark on the product. Manufacturers can get consultancy from the BIS Consultant for copper tube certification. Connecting with EVTL India as a BIS Consultant for your company helps manufacturers get a BIS Certificate in an easier way.