Abstract

This specification covers woven and braided asbestos tubular sleeving having a specified minimum mass % of asbestos fiber, excluding the mass of other inorganic strands which may be present. Asbestos tubular sleeving are classified into classes (Classes A, B, C, D, and E) based on the nature of the yarns from which they are braided or woven, into grades (Commercial, Underwriters', A, AA, AAA, and AAAA) based on the mass % of asbestos content, and types (Types II, IV, and VI) based on magnetic rating that identify performance limits. Specimens shall be sampled, prepared, tested, and comply accordingly with chemical (wire, organic, and inorganic reinforcements), physical (electrical insulation and magnetic rating), mechanical (tensile or breaking strength), and dimensional (inside diameter, wall thickness, mass per unit length, fabric count, and yarn number) property 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 woven and braided asbestos tubular sleeving having a minimum of 75 mass % of asbestos fiber, excluding the mass of other inorganic strands which may be present.

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

1.4 The following safety hazards caveat pertains only to the test methods, Section 13, described in 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. For specific safety hazard, see 1.3.

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

D76 Specification for Tensile Testing Machines for Textiles

D123 Terminology Relating to Textiles

D299 Specification for Asbestos Yarns

D1118 Test Method for Magnetic Rating of Asbestos Fiber and Asbestos Textiles

D1682 Test Method for Breaking Load and Elongation of Textile Fabric

D1777 Test Method for Thickness of Textile Materials

D1910 Methods of Test for Construction Characteristics of Woven Fabrics; Replaced by D 3773, D 3774, D 3775, D 3776, D 3882, D 3883

D1918 Test Method for Asbestos Content of Asbestos Textiles

D2100 Specification for Asbestos Textiles Used for Electrical Insulating Purposes

D2946 Terminology for Asbestos and Asbestos-Cement Products

E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

Keywords

asbestos; classification; sleeving; testing; tubing;

ICS Code

ICS Number Code 59.060.30 (Mineral and metal fibres)

DOI: 10.1520/D0628_D0628M-95R09E01

ASTM International is a member of CrossRef.

ASTM D628 / D628M