Downloaded from https://www.everyspec.com MIL-STD-810D 19 hly 1983 When chambers with a volume considerably in excees of O.34m3 (12 ft3), are used the conditions specified may require rnodification. NOTE: A filter fabricated of noncorrosive materials similar to that shown in figure 509.2-1 ghall be provided in the SUPPIY line and i~ersed in the salt solution reservoir as illustrated in figure 509.2-2. .. ”-., d.
Salt fog collection receptacles placed so that a clean receptacle at any point‘in the exposure zone ‘willcollect from 0.,5to 3 milliliters of solution per hour for each 80 square centimeters of .horiiontalcollecting‘area (10 cm diameter)‘in an average receptacles shall be used, one test of at least 16,,.hours.A minimum of 2 placed.nearest to any nozzle and one farthest shall b.ep.laoedso that they are not shielded by no dropa of ‘solutionfrom th~etest item or other ., ,,, .. . . . ...’. from all nozzles: Receptacles the test item and”will collect sources. .,, ,. ,. 11-1.2 a.
The ealt aolition shall be~heated before injection into.the te~t section to within ~60c (~1DoF) of the test section temperature at the ~irneof ‘injection.~~ ,., b. All ‘water used”during the Salt”fog’test(s) .ihallbe from ~tearnor distilled, demineralized, or”deionized water with a resistance of not less-,than 500,000 ohmelcm. .. ,.,, . ,. k c. Test section air circulation’:” @ ~ir,velocit,yin test chambers. designed for only”procedure I shall be minimal (essentially z6r0). II-1.3 Test (See General Riqulrements, ) : ,, a. Unaertest MmwU2ki.
If an ug~cheduled tee’tinterruption occurs that causee the test condition to exceed allowable tolerances toward etandard ambient conditions, the teat itep shOuld be given a comPlete visual examination, and a technical evaluation should be made of th? im’Pactof t,he interruption on’the teet results. The test mugt bp ,reetartedat the point of interruption and the teat ite~ ,qeatabilizedat the test conditions. .! . . .. . . . ,. b.
If an unscheduled test inter$uption”occura that cauaea.the”test conditions to exceed allowable tolerarices, away from’ standard”ambient conditions, the test condition should be stabilized to within tolerances and held at that.level until a complete visual examination and .-. technical evaluation can be made to determine ,theimPact .of”the interruption on. test results. If the visual examination or technical evaluation restilta“ina I conclusion that the teat interruption did nOt adversely.affect,the final test results, or if the effects of the Interrtiptiohcan ‘be‘nullifiedwith ... confidence, pre-interruption conditions should be reestablished and the . .. ,.
I lf3THOD509.2 19 JUIY 1983 509.2-6