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1. General 1.1.1 This Standard applies to hyperbaric chambers having as their primary function the subjection of humans to pressure environments exceeding 1 atmosphere absolute, such as those required in diving operations, work under compressed air conditions, medical treatment, training, and research. 1.1.2 This Standard establishes minimum requirements for the design, construction,…

Lays down detailed specifications for the instrumentation and procedure to be used for primary calibration of accelerometers using Earth's gravitation. Applies to rectilinear accelerometers with zero-frequency response, mainly of the strain gauge or piezoresistive type, to servopick-ups, and to primary standard and working pick-ups. Is applicable for ± local Earth's gravitation at 0 Hz…

Lays down detailed specifications for the instrumentation and procedure to be used for primary calibration of accelerometers using centrifuge calibration. Applies to rectilinear accelerometers with zero-frequency response, mainly of the strain gauge or piezoresistive type, and to primary standard and working pick-ups. Is applicable for a calibration range from 10 m/s^2 to 1000 m/s^2 (higher…

Lays down detailed specifications for the instrumentation and procedure to be used for primary calibration of accelerometers using centrifuge calibration. Applies to all types of rectilinear accelerometers, primary standards and working pick-ups. Is applicable for a frequency range from 0,7 Hz to 10 Hz and a dynamic range from 10 m/s^2 to 100 m/s^2. The limits of uncertainty applicable are ± 2 %…

Lays down detailed specifications for the instrumentation and procedure to be used for primary high impact shock calibration of accelerometers. Applies to rectilinear accelerometers, mainly of the piezoelectric and piezoresistive type, to primary standards and working accelerometers. Is applicable for a time range from 10 µs to 100 µs and a dynamic range from 10^3 m/s^2 to 10^5 m/s^2. The limits…

Applies to portable voltage detectors with or without built-in power sources, to be used on electrical systems for voltages of 1 kV to 420 kV a.c. and frequencies from 15 Hz to 60 Hz. For the time being, it has been identified that : - For voltage levels up to 52 kV, the actual standard can be used in its entirety ; - For voltage levels above 52 kV, electric testing procedures are questionable…

Computer security is divided into four areas: security with regard to installation and operation; system security; security with regard to document contents; security with regard to communication. The use of this standard is intended to facilitate communication with quality assurance functions within the company and outside, consideration of the different security aspects in the design work,…

Provides guidelines for establishing new routines required for the production of design documentation. The routines apply to manual as well as computer-based design work, but are particularly important when computers are used. The following phases are characterized: development phase, approval phase, distribution phase, storage phase, revision phase, phasing out. The use of this standard…

1.1 This Standard covers rigid polyvinyl chloride (PVC) pipe and fittings intended for use in pressure applications such as water mains, water service piping, and process piping. Included are moulded, solvent-cemented, or threaded Schedule 40 and 80 fittings, and fittings that have been fabricated for use with any jointing method. Note: If PVC pipe and fittings are to be used in other…

Describes the grey scale for determining staining of adjacent fabrics in colour fastness tests, and its use. A precise colorimetric specification of the scale is given as a permanent record against which newly prepared working standards and standards that may have changed can be compared. The essential scale (5 steps) consists of pairs of non-glossy grey or white colour chips (or swatches of grey…