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Definitions (378)
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af - across the flats
Measurement between 2 parallel faces on a nut. Indicates the size of spanner or socket required to tighten or loosen the nut. Further Reading
Meaning awaits approval from a moderator |
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2
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usgpd
US Gallons Per Day Further Reading
Meaning awaits approval from a moderator |
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en - euronorm
Standard issued by CEN/CENELEC normally prefixed by the national issuing body e.g. BS EN Further Reading
Meaning awaits approval from a moderator |
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fpso
Floating Production Storage and Offloading vessel - a floating facility installed above or close to an offshore oil and gas field to receive; process; store and export hydrocarbons. Further Reading
Meaning awaits approval from a moderator |
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havs
Hand Arm Vibration Syndrome A potentially debilitating disorder resulting from prolonged exposure to vibration - specifically to the hands and forearms while using vibrating tools. Further Reading
Meaning awaits approval from a moderator |
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1
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hazop
Hazard and Operability Review Further Reading HAZOP Toolbox Page
Meaning awaits approval from a moderator |
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ist
Integrated Systems Test Further Reading
Meaning awaits approval from a moderator |
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1
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pcd - pitch circle diameter
The diameter of an imaginary circle drawn through the bolt hole centres on a flange; flywheel; coupling etc Further Reading
Meaning awaits approval from a moderator |
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aarh
Arithmetic Average Roughness Height Method of determining surface roughness. Further Reading Flange Surface Finish Toolbox Page
Meaning awaits approval from a moderator |
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absolute pressure
The measurement of pressure relative to the pressure in a vacuum. It is equal to the sum of the pressure shown on a pressure gauge and atmospheric pressure. Further Reading
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