Graphical Electrical Symbols for Architectural Plans
1. Scope
1.1 The symbols contained in this Standard are intended for those who
prepare or use electrical wiring and layout diagrams associated with
architecture and building construction. These symbols have purposely
been made simple and are not intended in any way to depict the
structure of the particular devices shown.
1.2 It is not the…
1. SCOPE
1.1 This standard applies to vernier and dial type calipers and gages reading
to 0.02 mm, for precision measuring. Verniers and gages in accordance with
this standard shall be graduated with the International System of Measurement
(SI) Units.
1. Scope
1.1 This standard applied to screw type micrometer calipers for measuring
external and internal dimensions, thickness of tubing walls, and to
micrometer depth gages. Calipers and gages in accordance with this
standard shall be graduated with the International System of
Measurement (SI) Units.
1.1 Scope
1.1.1 This standard applies to unvented portable type gas refrigerators intended for use either indoors or outdoors with propa ne and butane gases. For the purpose of this standard, indoors refers to a confined space in tents, recreational vehicles, cottages, fishing huts, cabins and other similarly enclosed areas.
1.1.2 This standard applies to portable type gas…
Covers the writing, typing, and printing of dates and times when
all-numeric forms are used, and is applicable for general use. It
is more restrictive than, but is not in conflict with, the
relevant ISO standards. It departs from International Standard
ISO 3307, Information interchange Representations of time of
the day, only in that the use of 24:00:00 is permitted in
addition to 00:00:…
Method for the determination of the proof and the comparative tracking indices of solid insulating m...
Specifies the method of test for the determination of the proof and comparative tracking indices of solid insulating materials on pieces taken from parts of equipment and on plaques of material using alternating voltages. The standard provides for the determination of erosion when required. Test results cannot be used directly for the evaluation of safe creepage distances when designing…
Methods of measurement for radio equipment used in the mobile services - Part 5: Receivers employing...
Deals with the definitions, the conditions and the methods of measurement used to ascertain the performance of receivers having audio-frequency bandwidths generally not exceeding 10 kHz for the reception of voice and other types of signals, using single-sideband amplitude modulation. The standard is intended to be used in conjunction with IEC 489-1.
Methods of measurement for radio equipment used in the mobile services - Part 3: Receivers for A3E o...
Deals with the definitions, the conditions and the methods of measurement used to ascertain the performance of receivers having audio-frequency bandwidths generally not exceeding 10 kHz for the reception of voice and other types of signals, using angle modulation (phase/frequency modulation), or
double-sideband amplitude modulation with full carrier. This standard is intended to be used in…
Deals with sound level meters of four degrees of precision, designated Types 0, 1, 2 and 3. Specifies the following characteristics: directional characteristics, frequency weighting characteristics, time-weighting, detector and indicator characteristics, sensitivity to various environments. Establishes electrical and acoustical tests to verify compliance with characteristics specified and…
Methods of measurement for radio transmitters. Part 7: Cabinet radiation at frequencies above 1 GHz
Specifies the method which is essentially the same as that described in CISPR publication 11, sub-clause 5.2.2. With this method, emphasis has been laid on simplicity and reproducibility, rather than on rigorous scientific method. lt has been purposely developed for use in an ordinary laboratory room to avoid the use of an expensive anechoic room. The method is intended for type tests but it may…
