Pre-recorded optical reflective videodisk system 'Laser vision' 50Hz/625 lines - PAL
Applies to pre-recorded optical reflective videodisks compatible with 50 Hz-625 lines CCIR monochrome and colour coding PAL systems, and defines those parameters that effect the interchangeability of the disk, excluding limitations of the programming material and source. Serves as a reference for manufacturers intending to make disks or players compatible with the optical system described. See…
Methods of measuring the performance of ultrasonic pulse-echo diagnostic equipment
Defines parameters and outlines test methods for measuring performance of pulse-echo medical diagnostic systems that employ single-element transducers and operate in the 0.5 MHz to 25 MHz acoustic frequency range. Provides a generally acceptable basis for measuring and reporting the principal performance parameters of complete diagnostic systems. The performance parameters specified, and the…
Radio interference characteristics of overhead power lines and high-voltage equipment. Part 2: Metho...
The methods of measurement detail the techniques and procedures for
use when measuring fields on site near to an overhead line and also
the techniques and procedures for making laboratory measurements of
interference voltages and currents generated by line equipment and
accessories.
The procedures for determining limits define the expected values of
radio noise field and the width of the "…
Low-voltage fuses. Part 4: Supplementary requirements for fuse-links for the protection of semicondu...
For application in equipment containing semiconductor devices for circuits up to 1000 V a.c. to circuits of nominal voltages up to 1500 V d.c. Establishes characteristics of semiconductor fuse-links in such a way that they can be replaced by other fuse-links having the same characteristics provided their dimensions are identical. Defines standard conditions for operation in service,…
Aircraft — Terminal junction systems — Part 1: Characteristics
Specifies the general operating characteristics and standardization principles. Does not define a specific pattern for the connection system from the point of view of dimensions, but lays down limits for the design and performance for each system. This part lays down the basic requirements for the mechanical structure and electrical performances as well as the basic environmental conditions in…
Spanners and wrenches — Spline drive ends for power socket wrenches
Covers both the male end dimensions, and the female end dimensions. The pitch p/ps as given in the tables defines the spline dimensions. The first number is the diametral pitch; the second number is the stub pitch; it denotes, as the fractional part of an inch, the basic radial length of engagement, both above and below the pitch circle. The module denotes the number of units of pitch diameter…
Test Procedure for the Measurement of Sound Emitted from Construction,
Forestry, and Mining Machin...
Defines the procedures for determining the exterior A-weighted
equivalent continuous sound power level, A-weighted exterior
sound pressure levels, and operator A-weighted sound pressure
levels emitted by construction, forestry, and mining machinery
with net engine power greater than 15 kW. The categories of
machinery covered by this Standard are tractor, loader, dumper,
tractor-scraper,…
Magnetic tape sound recording and reproducing systems. Part 4: Mechanical magnetic tape properties
Applies to non-perforated magnetic tape used for professional and domestic analogue sound recording and reproduction. Lists and defines the methods of measurement and equipment necessary to determine the mechanical characteristics of magnetic recording tape. Will also enable users of magnetic tapes to compare technical product data of different manufacturers, produced in accordance with this…
Semiconductor convertors. Part 4: Method of specifying the performance and test requirements of unin...
Applies to electronic indirect a.c. convertor systems with electrical energy storage means in the d.c. link. Defines a complete uninterruptible power system in terms of its performance and not in terms of individual sub-system functional units.
