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Significance and Use
This practice is for use by designers and specifiers, regulatory agencies, owners, contractors, and inspection organizations who are involved in rehabilitation of pressurized piping systems.
1.1 This standard is intended to establish the minimum criteria necessary for use of a mechanically mixed, blended, epoxy barrier coating (AWWA Class I) that is applied to the interior of ½in. to 36 in. metallic pipe or tube used in pressurized piping systems for corrosion protection and to improve flow rates. There is no restriction as to the developed length of the piping system other than the method of application (“blow through”, spin cast or hand sprayed) and the characteristics of the epoxy coating being applied but the manufacturer’s engineer shall be consulted for any limitations associated with this product, process and its application for the end user.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1600 Terminology for Abbreviated Terms Relating to Plastics
D3359 Test Methods for Measuring Adhesion by Tape Test
D3363 Test Method for Film Hardness by Pencil Test
D4414 Practice for Measurement of Wet Film Thickness by Notch Gages
D4541 Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers
D4752 Practice for Measuring MEK Resistance of Ethyl Silicate (Inorganic) Zinc-Rich Primers by Solvent Rub
F412 Terminology Relating to Plastic Piping Systems
AWWA StandardAWWARehabilitationof : Manual of Water Supply Practices M28, Appendix
NSF StandardNSF/ANSI14 Plastic Piping System Components and Related Materials
Society of Protective Coatings StandardsSSPC-SP6/NACENo.3 Commercial blast cleaning
ICS Number Code 23.040.99 (Other pipeline components)
UNSPSC Code 12164903(Epoxy waterproof coating)