Provides the physical and mechanical property data to be used for
design purposes for the zirconium alloy components defined in
this series of Standards.
Flameproof Non-rail-bound Diesel-Powered Machines for Use in Gassy Underground Coal Mines
Describes the technical requirements and procedures necessary for
the design, performance and testing of new or unused flameproof,
non-railbound diesel-powered, self-propelled machines for use in
gassy underground mines. The working environment of such mines
is characterized by the presence of methane gas and combustible
dust.
Manually Operated Shut-Off Valves for Gas Piping Systems
1.1 Scope
1.1.1 This standard applies to newly produced manually operated shut-off valves for gas piping systems and constructed of entir ely new, unused parts and materials which: (a) are intended for use downstream of the distributors meter or regulator, for operation at a maximum pressure of 1/2 psig (3.4 kPa), (b) are capable of operation at ambient temperatures between 32°F (0°C) and…