This test method covers the standard for testing of asbestos-cement pipe for hydrostatic strength, flexural strength, crushing strength, straightness, and uncombined calcium hydroxide. Hydrostatic pressure test is performed by placing the pipe with a factory-assembled joint, in a hydrostatic pressure testing machine. Air is expelled and an internal water pressure at a uniform rate is applied. The flexural strength test is performed by supporting the pipe in a flexural testing machine and distributing the load equally, and applying the load at the third points of the clear span. The crushing test shall be performed using the V-shaped bearing method. The straightness test is performed by determining the outer diameter of each pipe at both ends and in the middle and calculating the differences in outer diameter.

1.1 These test methods cover the testing of asbestos-cement pipe for hydrostatic strength, flexural strength, crushing strength, straightness, and uncombined calcium hydroxide; they are for use in conjunction with the individual product specifications for asbestos-cement pipe.

1.2 Test methods appear in the following sections:

1.3 Guidelines for internal and external corrosion included in Section 9 serve as an aid in determining the type of pipe which should be specified to maximize service life for a particular application.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 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 chrysoltile asbestos, refer to "Safe Use of Chrysotile Asbestos: A Manual on Preventive and Control Measures."

1.6 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. For a specific safety hazard, see1.5. >