AS 7240.4:2018 Fire detection and alarm systems
6.5.2.1 If a single specimen is supplied for environmental testing, subject the specimen to all of the tests, which may be carried out in any order. Conduct the full functional test (see 6.2.3) before and after the series of environmental tests. Conduct the reduced functional test (see 6.2.4) before, during (if specified) and after each environmental test.
6.5.2.2 The reduced functional test after one environmental test may be taken as the reduced functional test before the next environmental test.
6.5.3 Tests for more than one specimen
6.5.3.1 If more than one specimen is supplied for environmental testing, divide the tests between the specimens and conduct the tests in any order. Conduct the full functional test (see 6.2.3) on one specimen before the series of environmental tests, and on each of the specimens after the last environmental test on that specimen.
6.5.3.2 Conduct the reduced functional test (see 6.2.4) before, during, (if specified) and after each environmental test.
6.5.3.3 For each specimen, the reduced functional test after one environmental test may be taken as the reduced functional test before the next environmental test.
6.6.2.1 General
Perform the test procedures with gradual changes in temperature according to IEC 60068‑2‑1. Use test Ad for heat‑dissipating specimens (in accordance with IEC 60068‑2‑1) and test Ab for non‑heat‑ dissipating specimens, and 6.6.2.2 to 6.6.2.6.
6.13.2.5 Measurements during conditioning
Monitor the specimen during the conditioning period to check that output voltages are within the specifications. During the last hour of the conditioning period, subject the specimen to the reduced functional test.
6.13.2.6 Final measurements
After the recovery period, subject the specimen to the functional test according to 6.2.4 and inspect it visually for mechanical damage both externally and internally.
7 Test report
The test report shall contain, as a minimum, the following information:
a) the identification of the test specimen;
b) a reference to this document, i.e. ISO 7240‑4;
c) the results of the tests: the individual response times and any other data, such as specimen orientation, as specified in the individual tests;
d) the conditioning period and conditioning atmosphere;
e) the temperature and relative humidity in the test room throughout the test;
f) the details of the supply and monitoring equipment and the response criteria;
g) the details of any deviation from this document or from the International Standards to which reference is made, and details of any operations regarded as optional.