1.1 This specification covers gongs for use on ships 100 m or more in length, as required by International Regulations (see Appendix X1).
1.2 For consistency with International Regulations, all measurements are in SI units.
ASTM F957-91(2012)
Original price was: $48.00.$24.00Current price is: $24.00.
Standard Specification for Gong, Sound Signaling
ASTM International , 05/01/2012
Pages: 5
