scope:

PURPOSE AND APPLICABILITY

This Document sets forth Environmental Conditions and Test Procedures applicable to Airborne Electronic/Electrical Equipment and Instrqments. The purpose of these tests is to provide a laboratory means of determining the performance characteristics of the equipment and instruments under conditions representative of those which may be encountered in actual aeronautical operations.

NOTE : In each of the test procedures contained herein, the following phrase will be encountered one or more times

"DETERMINE COMPLIANCE WITH APPLICABLE EQUIPMENT PERFORMANCE STANDARDS".

In the case of EUROCAE minimum performance standards these are found in Paragraph 4 "Minimum Performance Specification under Environmental Test Conditions". When testing to other than EUROCAE specifications, refer to th applicable portion of these specifications.

In the case of RTCA standards these are found in Paragraph 3. 0 "Minimum Performance Standards Under Environmental Test Conditions" of the appropriate RTCA Airborne Electronic Minimum Performance Standards Document. When testing to other than RTCA standards, refer to the applicable portion of those standards.

All of the environmental conditions and test procedures contained in this Document are not necessarily applicable to all airborne electronic/ electrical equipment and instruments. The selection of the appropriate environmental conditions and test procedures is the responsibility of those who write the performance standardt:, for the individual airborne electronic/ electrical equipment and instruments.

NOTE 1 : There are several additional environmental conditions that selected airborne electronic/ electrical equipment and instruments may be subjected to that have not been included in this Document. These include rain, hail, icing and powerplant lubricating oils and fuels. THE PROCEDURES FOR TESTING EQUIPMENT UNDER THESE ENVIRONMENTAL CONDITIONS ARE SO UNIQUELY RELATED TO THOSE FEW EQUIPMENTS THAT ARE EXPOSED TO THESE ENVIRONMENTAL CONDITIONS THAT, IF A TEST PROCEDURE IS REQUIRED FOR ANY ONE OF THESE CONDITIONS, IT SHOULD BE WRITTEN BY THOSE PERSONS WHO WRITE THE PERFORMANCE STANDARDS FOR THE EQUIPMENT INVOLVED.

NOTE 2 : In general, metric units are used as the primary value ; all the figures in parenthesis are approximate equivalents. However, in certain cases, English units are the primary value ; then the approximate metric equivalent is shown in brackets.