Industrial-process control valves - Part 8: Noise considerations - Section 2: Laboratory measurement...
Provides a method for measuring the sound-pressure level due to liquid flow through a control valve, and the characteristic increase in noise due to cavitation.
Acoustics — Measurement procedures for ducted silencers — Insertion loss, flow noise and total press...
Specifies the substitution method for determining the insertion loss. The measurement procedures are intended for laboratory measurements on silencers but may also be used for in situ measurements on silencers if the requirements of ISO 7235 can be met. Applies to silencers for ventilating and air-conditioning systems. Does not apply to reactive silencers used for motor vehicles.
Crude petroleum — Determination of water and sediment — Centrifuge method
Specifies a method for the laboratory determination. The precision data of this procedure have only been determined for water contents up to 1 % (V/V). Includes principle, apparatus, reagents, sampling, procedure, expression of results, precision and test report. A centrifuge tube is shown in figure 1. The procedure for reading the volume of water and sediment is shown in figure 2. The precision…
Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for monitori...
Specifies the standard atmosphere for conditioning and testing pulp, paper, and board, and also the procedures for measuring the temperature and relative humidity. For the conditioning of laboratory prepared handsheets in accordance with ISO 5269-1, the standard atmosphere is that defined in this standard, but the procedure is different. Annex A covers the measurement of temperature and relative…
Adhesives — Guide to the selection of standard laboratory ageing conditions for testing bonded joint...
Describes conditions under which adhesive joints may be exposed to various climatic or chemical influences for the purpose of assessing the effects of such influences on certain properties. They are not necessarily applicable to the determination of the service life of a bonded assembly. The principle consists in defining the ageing conditions that relate most closely to the application for the…
Laboratory glassware — Thermal shock and thermal shock endurance — Test methods
Specifies a thermal shock test and the procedure for determining the thermal shock endurance. Does not apply to fused silica ware and annealed containers made from soda-lime-silicate glass.
Applies to surgeons' and laboratory coats made from preshrunk,
bleached cotton drill fabric. They shall not be worn in an
environment requiring lint-free clothing.
Protective clothing — Protection against liquid chemicals — Determination of resistance of air-imper...
Describes a laboratory test method that enables an assessment to be made of the resistance to permeation by liquids afforded by clothing materials, used for industrial and agricultural applications. The test does not necessarily simulate conditions that may occur in practice.
Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: ...
Specifies general safety requirements for electrical equipment intended for professional, industrial process, and educational use, including equipment and computing devices for: -measurement and test; -control; -laboratory use; -accessories intended for use with this equipment. Does not cover: -reliable function, performance or other properties of the equipment; -servicing (repair); -protection…
