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This specification covers requirements for plastic linings to be applied to asbestos-cement pipe, designed for special service in carrying corrosive fluids. This specification also covers methods of testing plastic lining material as well as sections of lined pipe. Thermosetting polymer linings and those thermoplastic linings that do not rely on mechanical means to hold them to the pipe wall shall have a strong permanent bond to the pipe wall. The plastic lining used shall be highly resistant to acids and alkalis, and shall be completely resistant to acids generated by the hydrogen sulfide corrosion cycle. The chemical resistance tests for lined test specimens and lining material are presented in details. Three adhesion tests procedure for the specimens are presented.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers requirements for plastic linings to be applied to asbestos-cement pipe, designed for special service in carrying corrosive fluids. This specification also covers methods of testing plastic lining material as well as sections of lined pipe. The requirements established by this specification shall serve as a guide in, but not the sole basis for, judging the suitability of the product for a particular service. The selection of the material should include consideration of performance in similar applications or testing under the intended service condition.
Note 1—To determine the suitability of the product for a particular service or corrosive fluid, refer to the manufacturer for specific recommendations.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 Warning—Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For information on the safe use of chrysotile asbestos, refer to “Safe Use of Chrysotile: A Manual on Preventive and Control Measures.”
1.4 The following precautionary caveat pertains only to the test method portion, Section 9, of this specification: 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.
D543 Practices for Evaluating the Resistance of Plastics to Chemical Reagents
D714 Test Method for Evaluating Degree of Blistering of Paints
D2946 Terminology for Asbestos and Asbestos-Cement Products
ICS Number Code 23.040.50 (Pipes and fittings of other materials)
UNSPSC Code 30111601(Cement)