Rechercher

The checking applies to manganese and chromium ores, whether natural or processed, being carried out in accordance with the methods specified in the relevant International Standards. Includes general conditions for division of experimental samples and experimental methods of division a) in three or more stages or b) in one or two stages.

Standard Generalized Markup Language (SGML)

The checking applies to manganese and chromium ores, whether natural or processed, being carried out in accordance with the methods specified in the relevant International Standards. Includes general conditions for sampling and preparation of samples and experiments for bias of sampling and of sample preparation, gives a data analysis and reviews results.

Provides a guide to appropriate IEC publications related to hearing aids. Includes a glossary of terms and the scope of each publication. The particular measurement needs are indicated. A method of classifying hearing aids is given based upon maximum saturation sound pressure level. This publication has the status of a technical report.

For application in equipment containing semiconductor devices for circuits up to 1000 V a.c. to circuits of nominal voltages up to 1500 V d.c. Establishes characteristics of semiconductor fuse-links in such a way that they can be replaced by other fuse-links having the same characteristics provided their dimensions are identical. Defines standard conditions for operation in service,…

The purpose is to ensure that the essential requirements of all screw keys are achieved without imposing undue restriction on design features. This standard specifies the requirements for screwdrivers used in orthopaedic surgery for inserting and removing bone screws. Screw keys with the working end specified are suitable for use with screws which conform to ISO 9268.

Specifies the general operating characteristics and standardization principles. Does not define a specific pattern for the connection system from the point of view of dimensions, but lays down limits for the design and performance for each system. This part lays down the basic requirements for the mechanical structure and electrical performances as well as the basic environmental conditions in…

Specifies a method for determining the percentage of matter which can be extracted from crystalline propylene plastics by boiling n-heptane under standard conditions of testing. A powdered test portion is carefully dried, weighed and extracted in as Soxhlet-apparatus with n-heptane during 24 h. The mass of residue of the test portion is determined and according to ISO 1873-1 reported as isotactic.