Populære standarder

• ASTM F1098 - 87(2019)

  Standard Specification for Envelope Dimensions for Butterfly Valves—NPS 2 to 24

  ---

• ASTM F1373 - 93(2020)

  Standard Test Method for Determination of Cycle Life of Automatic Valves for Gas Distribution System Components

  ---

• ASTM F1394 - 92(2020)

  Standard Test Method for Determination of Particle Contribution from Gas Distribution System Valves

  ---