IS 10773 (1995) Testing

IS 10773:2025 applies to solid-drawn, seamless copper tubes used for refrigeration and air-conditioning applications, including relevant inner-grooved or enhanced-surface tube types covered by the standard.

The standard specifies requirements related to the copper material and its chemical composition. Verification of composition helps ensure that the tubes are manufactured from suitable copper grades for their intended refrigeration and air-conditioning applications.

Yes. The standard includes requirements for tube dimensions and applicable tolerances. Dimensional testing helps verify that the supplied copper tubes conform to the specified size and manufacturing requirements.

Yes. Applicable mechanical and performance evaluations help assess the tube's suitability for service. Depending on the product and applicable requirements, testing may include tensile and other specified mechanical tests.

Yes. Internal cleanliness is particularly important for refrigeration and air-conditioning tubing because residual contaminants can affect system performance. Applicable cleanliness or residue requirements should therefore be verified during conformity assessment.

Yes. The standard includes applicable non-destructive examination requirements for detecting defects and verifying tube integrity. The specific test and acceptance criteria depend on the requirements applicable to the product.

Pressure testing is used to assess the tube's ability to withstand the specified internal pressure without unacceptable leakage or failure. It is particularly relevant for tubes intended to carry refrigerants under pressure.

Hydrogen embrittlement-related evaluation is included among the requirements associated with suitable copper tube quality. The applicable testing and acceptance requirements should be assessed against the latest edition of IS 10773.