AS 1571 pdf download.Copper — Seamless tubes for air- conditioning and refrigeration 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. . 3.1 coil annealed copper tube supplied in a coiled form EXAMPLE Pancake coil, wound pack, or pair coil. 3.2 may indicates the existence of an option 3.3 mean outside diameter half...