MIL --- PR F --- 51193E (E A)
2867, O ve n --- D rying Te st Me thod, e xce pt tha t the ove n te mpe ra ture sha ll be 103_ --- 107_C a nd
the drying time sha ll be 3 hours. The moisture conte nt ma y a lso be de te rmine d through the use
of moisture te lle r de vice s. If the moisture conte nt of the a dsorbe nt e xce e ds the re quire me nt,
the filte rs re pre se nte d by the sa mple s sha ll be conside re d una cce pta ble .
4.3.6.4 Structural integrity. E a ch sa mple unpa cka ge d filte r sha ll be positione d ve rtica lly
with inle t e nd down a nd cla mpe d on a ste e l mova ble pla te . The pla te sha ll me a sure 76.2 by 76.2
ce ntime te rs a nd ha ve a tota l we ight of 109± 9 kilogra ms including the holding cla mps. Whe n
the filte r is se cure ly cla mpe d in pla ce , the re sha ll be no distortion of the fra me or body of the
filte r. The ste e l mova ble pla te a nd filte r sha ll be ra ise d a nd le t fa ll (fre e ) 19± 3 millime te rs onto
a ste e l ba se pla te a t the ra te of 200 drops pe r minute for 15± 0.1 minute s. The ste e l ba se pla te
sha ll be pa rt of the a ppa ra tus a nd sha ll be firmly a nchore d to a concre te floor ca pa ble of a bsorb -
ing the impa ct of the ve rtica l vibra tions. The te st sha ll be pe rforme d a t a room te mpe ra ture of
21± 11° C. Throughout the te st the filte r sha ll re ma in in a firm position. F ilte rs ma y be pa dde d
or blocke d whe re cla mps pre ss a ga inst the side or top of the fra me , but not the bottom, to pre -
ve nt distortion of the filte r. The mova ble ste e l pla te must be pa ra lle l to the ba se pla te a t a ll
time s to e limina te a ny horizonta l move me nt a nd/or force . The filte r sha ll me e t the re quire -
me nts of 3.5.4 a fte r rough ha ndling.
4.3.6.5 DMMP value (destructive). The D MMP ga s life sha ll be de te rmine d by the G ove rn -
me nt la bora tory in a ccorda nce with 3.5.5 using the Q 223 te ste r (D ra wing 136 --- 41 --- 1755) or a n
a pprove d e quiva le nt te ste r.
4.3.6.6 CK value (destructive). The CK ga s life sha ll be de te rmine d by the G ove rnme nt
la bora tory in a ccorda nce with 3.5.6 using the Q 223 te ste r or a n a pprove d e quiva le nt te ste r.
4.3.6.7 Adsorbent Media. For a dsorbe nt othe r tha n ASZ M --- TE DA ca rbon, a llsupporting
te st da ta sha ll be ba se d on te st pa ra gra phs, conditions a nd me thods de scribe din E A --- C --- 1704.
Supporting te st da ta will a lso be ne e de d for a ny re quire d te st fa lling outside of the scope of
E A --- C --- 1704 (se e 6.6).
4.3.6.8 Fines retention test. The filte r sha ll be rigidly mounte d with the inle t port in the up -
pe r ve rtica l position a nd subje cte d to the te st of MIL --- STD --- 810, Me thod 516.4, Proce dure I.
A tota l of thre e ha lf sine wa ve shock pulse s sha ll be a pplie d in both dire ctions a long e a ch of
thre e mutua lly pe rpe ndicula r a xe s. Pe a k a mplitude sha ll be 30± 3 g, 11± 0.2 millise conds (ms).
At the conclusion of the te st, e xa mine the filte r for a dsorbe nt fine s e mission a nd re cord the tota l
a mount of e mission through the fine s filte rs. The filte r sha ll me e t the a dsorbe nt e mission limits
of 3.5.8.
4.3.6.9 Dampness and mildew resistance tests. The da mpne ss re sista nce te st sha ll be in a c-
corda nce with Te st Me thod 5526 of F E D --- STD --- 191 a nd the milde w re sista nce te st sha ll be in
a ccorda nce with Te st Me thod 5750 of F E D --- STD --- 191. A minimum of two sa mple s of fine s
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