Rechercher

Specifies the accuracy of measurement of the impact velocity. Describes in the annex some typical methods suitable for the measurement. These methods are intended to facilitate the comparison of data obtained in similar tests by different laboratories. Other methods may be used provided they meet the requirements of 2.1 and 2.2.

Gives a conductive method for determining the rate of solution. Describes the principles of the procedure by dissolution of an agreed test portion in water at an agreed temperature, with controlled agitation. Measurement of the conductivity of the solution, at certain intervals, of the final conductivity (when the sample is completely dissolved) and calculation of the ratio of conductivities to…

Is applicable to products having a minimum KCl content of about 95 % (m/m). The principle consists in dissolution of a test portion taken from the laboratory sample, previously ground and sifted. Acidification to pH 1 after suitable dilution, and atomization of the resultant solution in the burner of a flame spectrophotometer. Measurement of the intensity of the 766 nm ray, compared with the…

A method is specified for comparing the mean of a population of differences with zero or any other preassigned value. It may be applied to establish a difference between two treatments, where "treatment" should be understood in a wide sense, e.g. as a test method, measuring instrument or laboratory involved, and is applicable under the conditions that the series of differences can be…

Applies to the dimensions of hospital, laboratory and industrial general purpose smocks for wear by men.

Establishes under laboratory conditions: their suitability for use over stated ranges of temperature, air pressure and humidity, their ability to withstand specified conditions of mechanical shock, their ability to withstand the rigours of normal assembly processes.