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BS EN 61300-3-37 describes two methods for measuring the optical fibre endface angle
Over and above its primary purpose
It applies to heavy vehicles
do not in all cases agree satisfactorily with visual perception nor are they likely to agree with each other
BSI reserves the right to withdraw or amend this PAS on receipt of authoritative advice that it is appropriate to do so
Petroleum and natural gas industries. Pipeline transportation systems. Pipeline valves Ingestion-build-48974 BS EN 61300-3-37 describes two1 Scope This International Standard specifies requirements and provides recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries. This International Standard is not applicable to subsea pipeline valves, as they are covered by a separate International Standard (ISO 14723). This