Normalization of instruments' operating conditions and methods for their climatic and mechanical testing

Abstract

1. It is necessary to establish a rule that all normalizing documents of an instrument (development conditions, technical specifications, operation instructions, and standards) contain indications on the permissible operating conditions of the instrument with respect to temperature, humidity, and other important ambient parameters. 2. It is advisable to develop and issue a special GOST on the methods of climatic and mechanical testing of instruments. In this GOST, the instruments should be classified according to their operating conditions, and corresponding testing conditions should be specified for them. Conditions for testing the effects of shaking in transportation, humidity, and temperature should be uniform for all similar groups of instruments and related to the actual conditions of transportation (by various means of transportation in diverse climatic zones). 3. It is necessary to establish a uniform criterion instead of several criteria which are now being used for establishing the behavior of instruments under appropriate tests (reading tolerances, permissible reading variations, additional tolerances). 4. Before a special standard is developed for the method of climatic and mechanical testing of instruments, it is necessary to alter GOST 1845-59, GOST 9763-61, etc., by stating that the climatic testing of instruments should be made, as a rule, without packing. The conditions specified in these standards for testing the mechanical effects produced on instruments in their transportation should be made considerably more exacting. This article was written as the result of research done at the VNIIM laboratories for climatic and mechanical testing, with the participation of A. A. Baskin and M. Ya. Brodskaya.