scope:

The Standard is not intended to be exhaustive in its treatment of all environments, some of which require a high degree of experience and background knowledge. Environments and their effects are given in some detail, but the methods of minimising degradation of performance or reliability are not specifically covered. The depth of treatment for any given environment or related matter has been determined by the availability of information on the subject, in conjunction with its importance in the light of contemporary environmental engineering problems.

The Standard describes both the natural and induced environments as well as environmental tests for all defence materiel with the exception of:

Electronic components; which are subject either to BS 2011 or IEC 68.

Space and underwater other than undemater shock.

The following British Standards describe environmental testing and whenever they contain a test which is suitable for use with defence materiel it is invoked by this Defence Standard.

BS 2011 - Basic environmental testing procedures.

BS 3G 100 - General requirements for equipment for use in aircraft.

Where the British Standard test method is suitable but no appropriate severities are listed in the British Standard, this Defence Standard invokes the British Standard test method and gives suitable severities.

The application of this Standard to certain types of materiel is governed by publications relevant to that materiel. The appropriate governing publications shall be read in conjunction with this Standard when the environmental testing of such materiel is required by contract. These governing publications are:

Aircraft equipment - DEF STAN 00-970.

General packaging - DEF STAN 81-41.

Guided weapon, torpedo and airborne armament store systems - DEF STAN 08-5.

Naval weapon equipment - NWS 1000.

Packaging of explosives and ammunition - DEF STAN 07-22.

Service electronic equipment - DEF STAN 00-10.

In Part 3 of this Standard the "Common Data" Section and the "Scope" paragraph of each test either presents situations in which the environment to be simulated is likely to occur, or suggests possible applications of the test. The presence of examples in these paragraphs does not imply that the test must be applied as a matter of course.

This Standard also implements various International Military Standardization Agreements, such as NATO STANAGs. These are identified in the annex to this chapter, together with any UK reservations.

This Standard has been compiled for the specification of environmental conditions and for use during the development of defence materiel. Nonetheless, much of the content of this Standard may have application for the specification, development or production of equipment outside the scope envisaged. However, no responsibility is implied or accepted for such use, and the Crown will not be liable in any way whatever (including but without limitation negligence on the part of the Crown its servants or agents) where the Standard is used for other purposes.