AS/NZS 1571:1995 pdf free.Copper – Seamless tubes for airconditioning and refrigeration.
AS/NZS 1571: specifies requirements for round, seamless copper tubes manufactured from phosphorus-deoxidized copper containing high residual phosphorus (UNS alloy C12200) intended for use in airconditioning and refrigeration.
NOTE: Advice and recommendations on information to be supplied by the purchaser at the time of enquiry and order are contained in the purchasing guidelines set out in Appendix A.
3 DEFINITION For the purpose of this Standard, the definition below applies.
3.1 Mean outside diameter—half the sum of two outside diameter measurements taken
at right angles to each other on one cross-section of the tube.
4 DESIGNATION
4.1 General The copper designation shall comprise the number of this AustralianfNew
Zealand Standard, i.e. AS/NZS 1571, followed by additional characters in accordance with
Clauses 4.2 and 4.3.
4.2 Temper A designation comprising 0, ½H or H.
4.3 DimensIon Two numbers separated by a multiplication sign to indicate outside diameter and wall thickness.
Example of designation: AS/NZS 1571—½H—12.70 x 0.91
5 FORM, TEMPER AND END SEALING OF TUBES
5.1 Form Tubes shall be supplied in straight lengths or coils.
5.3 End sealing Tubes shall be either capped, plugged, crimped or otherwise packaged in order to maintain internal cleanness under normal conditions of handling and storage.
6 CHEMICAL COMPOSITION Tubes shall comply with the chemical composition given in Table 1.
NOTE: The chemical composition is to be determined by recognized chemical analysis methods of sufficient accuracy and reproducibility to meet the requirements of Table 1.
7 FREEDOM FROM DEFECTS The finished tube shall be clean, smooth and free from defects detrimental to its subsequent processing and end use. The internal surface shall have a clean and bright appearance.
If after acceptance of the tube, subsequent processing reveals that it contains manufacturing defects found to be detrimental, the tube shall be deemed not to comply with this Standard.
NOTE: Defects referred to in this Clause cannot be completely quantified. Where the presence, size or frequency of any defects is considered to be of concern, arrangements should be made between the purchaser and the manufacturer. This may be achieved by acceptable type samples or methods of test.
8 DIMENSIONS AND TOLERANCES
8.1 General Tubes shall conform to the manufacturing tolerances specified in Clause 8.2.
8.2 Manufacturing tolerances
8.2.1 Mean outside diameter For tubes in all tcmpers either coiled or in straight lengths, the mean outside diameter shall not vary from the specified diameter by more than the tolerances specified in Table 2.AS/NZS 1571 pdf download.