Software for computers in the safety systems of nuclear power stations
Applies to highly reliable software required for computers to be used in the safety systems of nuclear plants for safety functions (Class 1 functions according to IEC 643). This includes the safety actuation systems, the safety system support features and the protection systems. This standard provides requirements for each stage of software generation, including design, development, qualification…
Fire hazard testing. Part 1: Guidance for the preparation of requirements and test specifications fo...
This standard should be read in conjunction with IEC 695-1-1. lt deals with the hazard concept, the main objective of the tests, their significant aspects, the evaluation of the fire hazard and a list of suitable ignition sources.
Has the status of a basic safety publication in accordance with IEC Guide 104.
Pneumatic fluid power — Cylinders — Bore and port thread sizes
Specifies the metric thread sizes corresponding to a recommended range of pneumatic cylinders. Tabulates the corresponding threads for cylinder bores from 8 to 400 mm. An annex contains the relation between other existing port thread systems and cylinder bores in accordance with this standard.
Cinematography — Recorded characteristic for magnetic sound records on 35 mm motion-picture film exc...
This International Standard specifies the recorded characteristic for magnetic Sound records on 35 mm motion-picture film excluding striped release prints when used at the nominal Speed of 24 frames (45,6 cm or 18 in) per second or 25 frames (47,5 cm or 18.7 in) per second.
NOTE - This International Standard and relevant portions of Recommendation No. 265-2 of the CCIR have substantially the same…
Cellular plastics, rigid — Determination of compressive creep under specified load and temperature c...
Specifies a method for the determination of compressive creep of rigid cellular plastics under specified conditions of load, temperature and time. Test specimes in form or rectangular parallelepipeds are placed between two flat plates and the specified load is applied a) at standard conditions and b) at agreed conditions of temperture and time. The difference in compressive deformation of the…
Rubber — Determination of adhesion to rigid materials using conical shaped parts
Adhesion is obtained by a bonding system which may include not only the rigid material and the rubber compound, but other elements, e.g. thin alloy coatings etc. The bonding system should be adequately specified by the user, but the standard provides for evaluation of differnt types of failure related to a complex adhesion system. The standard test piece is given in a figure, the test report is…
This National Standard of Canada is identical to American
National Standard ANSI/BHMA A156.2-1983 in total, without any
modification. It establishes requirements for bored and
preassembled locks and latches and includes performance tests,
strength tests, operational tests, finish tests and dimensional
criteria.
Method for the Continuous Measurement of Oxygen, Carbon Dioxide, Carbon Monoxide, Sulphur Dioxide a...
1. Scope
1.1 General
1.1.1 This Standard applies to the continuous measurement of the concentrations of
(a) oxygen (O2) (see Clause 6.1);
(b) carbon dioxide (CO2) (see Clause 6.2);
(c) carbon monoxide (CO), (see Clause 6.3);
(d) sulphur dioxide (SO2) (see Clause 6.4); and
(e) nitrogen oxides (NOx); in a continuously extracted sample of combustion gases from an enclosed gas…
