Abstract

This specification covers splash bar and corrugated sheet type asbestos-cement products used as cooling tower fill. This specification does not apply to the following: drift eliminators or demisters, louvers, partitioning and casing panels; asbestos-cement pipes; and asbestos-cement flat sheet fill (heat exchange surfaces). Splash bars are classified into the following types: Type I, splash bars consisting of corrugated autoclaved pressed asbestos-cement sheets for the most demanding applications; Type II, splash bars consisting of corrugated pressed asbestos-cement sheets for intermediate service; and Type III, splash bars intended for less demanding service. The corrugated fill used shall be of Type A, which are non-autoclaved, compressed, corrugated sheet with a specified nominal thickness. Materials shall conform to specified manufacturing (autoclave, pressing, and nominal thickness), composition (cement:silica ratio, mineral diluents, cellulose, maximum organic content, and cement type), and performance (apparent density, water absorption, bending moment, freeze-thaw resistance, Harkort test, and free lime) requirements.

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. Scope

1.1 This specification covers splash bar and corrugated sheet type asbestos-cement products used as cooling tower fill.

1.2 Drift eliminators or demisters, louvers, partitioning and casing panels are covered in Specifications C 1080 . Asbestos-cement pipes are covered in Specification C 296 and Specifications C 428 . Asbestos-cement flat sheet fill (heat exchange surfaces) are specified in Specification C 1082 .

1.3 The values stated in the SI system are to be regarded as the standard. The inch-pound units in parentheses are 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 precautionary caveat pertains only to the Test Method portion, Section 8, 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. See 1.4 for a specific safety hazard.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C150 Specification for Portland Cement

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

C500 Test Methods for Asbestos-Cement Pipe

C1080 Specification for Asbestos-Cement Products Other Than Fill For Cooling Towers

C1082 Specification for Asbestos-Cement Flat Sheet for Cooling Tower Fill

C1096 Test Method for Determination of Wood Fiber in Asbestos Cement

D2946 Terminology for Asbestos and Asbestos-Cement Products

DIN Standard

Keywords

asbestos; asbestos-cement; cement; cooling tower; corrugated; fill; Cooling towers--specifications; Corrugated asbestos-cement products; Freezing and thawing; Harkort test; Pressed products; Splash bar; Water absorption--asbestos-cement products; Asbestos-cement--specifications; Autoclaves;

ICS Code

ICS Number Code 91.100.40 (Products in fibre-reinforced cement)

DOI: 10.1520/C1081-98R08

ASTM International is a member of CrossRef.

ASTM C1081