Determination of the detection limit and decision threshold for ionizing
radiation measurements — Part 4: Fundamentals and application to
measurements by use of linear-scale analogue ratemeters, without the
influence of sample treatment
Petroleum and natural gas industries — Drilling and production equipment
— Installation, maintenance and repair of surface safety valves and
underwater safety valves offshore
Specification and approval of welding procedures for metallic materials
— Part 4: Welding procedure tests for the arc welding of aluminium and
its alloys