This specification covers various classes of asbestos-cement products (other than fill for cooling towers) such as drift eliminators or demisters, louvers, partitioning and casing panels, pressure pipes, and nonpressure or gravity drainage pipes. Products cured at atmospheric pressure or by autoclaving are also covered. Products shall adhere to the following tests and property requirements: apparent density, water absorption, flexural strength, modulus of rupture, freeze-thaw resistance, Harkort test, and dimensions.
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 drift eliminators or demisters, louvers, partitioning and casing panels.
Note 1—Asbestos-cement pipes are covered in Specifications C 296 and C 428; and asbestos-cement heat exchange fill products are covered in Specification C 1082 for flat fill and Specification C 1081 for corrugated fill.
1.2 The following classes of products are covered:
|Drift eliminators or demisters||4.1||Classes 1, 2 and 3|
|Louvers||4.2||Classes 1 and 2|
|Casing panels||4.3||Classes 1 and 2|
|Asbestos-cement pressure pipes||4.4||Classes 100, 150, and 200|
|Asbestos-cement nonpressure or gravity drainage pipes||4.5||Classes 1500, 2400, 3300, 4000, and 5000|
1.2.1 Products cured at atmospheric pressure or by autoclaving are covered.
1.3 The values stated in the SI system are to be regarded as the standard. The inch-pound units in parentheses are provided for information only.
1.4 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.”
1.5 The following safety hazards caveat pertains only to the test method portion of this specification (Section 5): 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 to determine the applicability of regulatory limitations prior to use. For a specific safety hazard, see 1.4.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C150 Specification for Portland Cement
C220 Specification for Flat Asbestos-Cement Sheets
C221 Specification for Corrugated Asbestos-Cement Sheets
C223 Specification for Asbestos-Cement Siding
C296 Specification for Asbestos-Cement Pressure Pipe
C428 Specification for Asbestos-Cement Nonpressure Sewer Pipe
C458 Test Method for Organic Fiber Content of Asbestos-Cement Products
C459 Test Methods for Asbestos-Cement Flat Products
C1081 Specification for Asbestos-Cement Corrugated Fill For Use in Cooling Towers
C1082 Specification for Asbestos-Cement Flat Sheet for Cooling Tower Fill
D2946 Terminology for Asbestos and Asbestos-Cement Products
DIN274 Asbestzement-Weilplatten Available from Deutsches Institut fr Normunge, Beuth Verlag GmbH, Auslieferung, Post Fach 1107, D-1000 Berlin 30, Germany.
asbestos; asbestos-cement; cement cooling tower; non-fill; Asbestos-cement--specifications; Autoclaves; Cement materials/applications--specifications; Cooling towers--specifications; Corrugated asbestos-cement products; Demisters; Drift eliminators; Fillers; Freezing and thawing; Harkort test; Louvers; Non-fill; Pressed products; Water absorption--asbestos-cement products;
ICS Number Code 91.100.40 (Products in fibre-reinforced cement)
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