ASTM F721-18 - 1.5.2018
 
1. Scope

1.1 This specification covers details of gage piping assemblies for pressure gages with optional provisions for additional gages, pressure switches, transmitters, and so forth, for use with steam, steam drains, feed water, condensate, fresh water, salt water, compressed air, fuel oil, and lubricating oil systems.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 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

A182/A182M-24

Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

A105/A105M-23

Standard Specification for Carbon Steel Forgings for Piping Applications

A576-23

Standard Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality

QQ-S-763

Steel Bars, Wire, Shapes, and Forgings, Corrosion-Resisting

B61-15(2021)

Standard Specification for Steam or Valve Bronze Castings

B62-17

Standard Specification for Composition Bronze or Ounce Metal Castings

B75-02

Standard Specification for Seamless Copper Tube

B124/B124M-20

Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes

B453/B453M-19

Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and Shapes

B466/B466M-18

Standard Specification for Seamless Copper-Nickel Pipe and Tube

B16.11

Forged Steel Fittings, Socket Weld, and Threaded

B16.15

Cast Bronze Threaded Fittings

B16/B16M-19

Standard Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines

QQ-S-637

Steel Bar, Carbon, Cold Finished (Standard Quality, Free Machining)

A106/A106M-19a

Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service (Includes all amendments and changes 11/21/2019).

A108-24

Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished

A335/A335M-23

Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

A276-13

Standard Specification for Stainless Steel Bars and Shapes