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Biochemical oxygen demand (also known as BOD or biological oxygen demand) is an analytical parameter representing the amount of dissolved oxygen (DO).
Biochemical oxygen demand (also known as BOD or biological oxygen demand) is an analytical parameter representing the amount of dissolved oxygen (DO).
A wall that is designed to retain its integrity against a defined blast loading and fire that may subsequently follow.
A wall that is designed to retain its integrity against a defined blast loading and fire that may subsequently follow.
A valve that has one seat which provides a seal, and a bleeder line and valve that are tapped into the block valve's bonnet.
A valve that has one seat which provides a seal, and a bleeder line and valve that are tapped into the block valve's bonnet.
A physical object intended to compress and supply air or gas at medium pressure and medium volume flow.
A physical object intended to compress and supply air or gas at medium pressure and medium volume flow.
An indirect contact heat exchanger that is intended to heat a liquid.
An indirect contact heat exchanger that is intended to heat a liquid.
A physical object intended to arrest or prevent the motion of an item. Typically by means of friction.
A physical object intended to arrest or prevent the motion of an item. Typically by means of friction.
A device for actuating an alarm system that required a person to break the glass cover.
A device for actuating an alarm system that required a person to break the glass cover.
A respirator in which air or oxygen is fed to a face mask carried by the wearer via a demand valve.
A respirator in which air or oxygen is fed to a face mask carried by the wearer via a demand valve.
Is a support structure intended to span a space.
Is a support structure intended to span a space.
A device to permit relative movement between a bridge and its support generally requiring periodic inspection and maintenance
A device to permit relative movement between a bridge and its support generally requiring periodic inspection and maintenance
A structure to control the formation of lateral buckles along a pipeline or flowline.
A structure to control the formation of lateral buckles along a pipeline or flowline.
An engineering dampening device to provide a controlled end stop for vehicles , trolleys or cranes and associated equipment in motion.
An engineering dampening device to provide a controlled end stop for vehicles , trolleys or cranes and associated equipment in motion.
In telecommunications, a distribution frame is a passive device which terminates cables, allowing arbitrary interconnections to be made.