PPI STATEMENT G-2009 Indented Markings.pdf

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1、 105 Decker Court, Suite 825, Irving, TX 75062 P: 469-499-1044 F: 469-499-1062 www.plasticpipe.org STATEMENT G Indented Markings Issued October 1974 Revised September 1986 Revised March 1992 Revised May 2000 Revised December 2009 When pipe or tubing is marked by indentation, care should be taken to

2、ensure that the markings do: 1. not reduce the wall thickness to less than the minimum value for the pipe. 2. not provide leakage channels when elastomeric gasket compression fittings are used to make the joints. The indented print line should be in a color that contrasts with that of the pipe, or a separate print line should be in a color that contrasts with the pipe.