Measurement of fluid flow in closed conduits. Velocity area methods, Method of measurement of velocity at one point of a conduit of circular cross section— 20 стр.
Basic concepts in metrology; Terminology relating to the uncertainty of measurement and the assessment of measuring instruments and measuring equipment— 14 стр.
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full. General principles and requirements— 44 стр.
Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases)— 66 стр.