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This specification covers gongs for use on ships of certain length, as required by International Regulations. The gong cylinder, brackets, clapper rod, "U" bracket, washers, and clapper support pin shall be made of stainless steel. The clapper mass shall be made of cast alloy steel. In addition, the support bolt, nut, flat washer, and cotter pins shall be made of stainless steel compatible with the other materials. The general arrangement of the assembled gong, as well as details of the gong cylinder, brackets, clapper, and miscellaneous fittings are presented. The sound characteristics of these gongs shall be determined by an acoustic test. These gongs shall be free from cracks, burrs, sharp cutting edges, and other defects affecting their life, appearance, and serviceability.
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 gongs for use on ships 100 m or more in length, as required by International Regulations (see ).
1.2 For consistency with International Regulations, all measurements are in SI units.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A167 Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip
A276 Specification for Stainless Steel Bars and Shapes
D3951 Practice for Commercial Packaging
American Welding Society StandardAWS D1.1 Structural Welding Code
ICS Number Code 47.020.70 (Navigation and control equipment)
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ASTM F957-91(2018), Standard Specification for Gong, Sound Signaling, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top