Standard Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings
1.1 This practice describes a procedure for making capillary joints by soldering of copper and copper alloy tube and fittings.
1.2 This procedure is applicable to pressurized systems such as plumbing, heating, air conditioning, refrigeration, mechanical, fire sprinkler, and other similar systems. ASME B31.5 and B31.9 reference the techniques employed for satisfactory joint preparation. It is also used in the assembly of non-pressurized systems such as drainage, waste and vent.
1.3 It is not applicable to the assembly of electrical or electronic systems.
1.4 Manufacturers should supply variations and additional specific detailed instructions for their particular products, if and when necessary.
1.5 Tube and fittings are manufactured within certain tolerances to provide for the small variations in dimensions associated with manufacturing practice. Applicable specifications are listed in the appendix.
1.6 A variety of solders are available that will produce sound, leak-tight joints. Choice of solder will depend upon the type of application and on local codes. For potable water systems, only lead-free solders shall be used, some of which are described in Specification B32.
1.7 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information purposes only.
1.8 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For hazard statements see Notes 1, 2, and 3.
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