Shipbuilding — Numerical control of machines — ESSI format
Serves as a guide in the co-ordination of system design, to minimize the variety of programs required, to promote uniformity of programming techniques, and to foster interchangeability of programs between NC drawings and flame cutting machines used in the shipbuilding industry. The "ESSI format" may be used in connection with any data code for punched cards, punched tapes, magnetic…
Recommended Practice for the Prediction of Sound Pressure Levels in Large Rooms Containing Sound Sou...
1. Scope
1.1 This Recommended Practice describes a procedure for the prediction of sound pressure levels in a large room containing a number of sound sources. This procedure may be used to compute A-weighted, octave, or fractional octave band sound pressure levels over continuous contours, or at specific points, to predict:
(a) Sound pressure levels at the design stage;
(b) The…
Industrial-process control valves. Part 2: Flow capacity. Section Three: Test procedures
Applies to industrial-process control valves and provides the flow capacity test procedures for determining some of the variables used in the equations given in IEC 534-2.
Specifies requirements for industrial platinum resistance thermometer sensors suitable for all or parts of the temperature range -200°C to +850°C with two tolerance classes. It is primarily concerned with sheathed elements suitable for immersion in the medium to be measured. Describes methods of test and suitable apparatus for some of the tests.
Formsets for Use with Embossed Cards and Imprinting Equipment
1. Scope
1.1 The purpose of this Standard is to define common media for the transferring of information from sources, including the embossed characters on a card, by means of imprinting equipment.
1.2 The existence of two standards in relation to formset dimensions is recognized as are the several different methods of capturing the information contained on completed formsets.
1.3…
Inductor and transformer cores for telecommunications. Part 2: Sectional specification. Magnetic oxi...
Lists the characteristics, ratings and also the inspection requirements for magnetic oxide cores of assessed quality consisting of at least two parts forming a substantially closed magnetic circuit intended for inductors and timed transformers for professional and industrial applications. The cores covered by this specification may be used with an adjuster to provide a change of inductance for…
Ionizing radiation measurement systems with analogue or digital signal processing for thickness meas...
Deals with definitions and test requirements for ionizing radiation measurement systems designed for either continuous or discrete measurement and checks of thickness, mass per unit area, or mass per unit length on industrial processes, of material in such forms as sheets, coatings, laminates, tubes, or rods.
This publication replaces IEC 577 (1977).
