MIL --- PR F --- 51193E (E A)
3.5 Performance characteristics.
3.5.1 Air flow resistance. The a ir flow re sista nce of the filte r sha ll not e xce e d 43 millime te rs
of wa te r a t a 283 sta nda rd lite rs pe r minute a irflow with a n a ir stre a m te mpe ra ture of 21_C a nd
a ba rome tric pre ssure of 760 millime te rs (mm) H g whe n te ste d a s spe cifie d in 4.3.6.1.
3.5.2 Filter leakage. The filte r sha ll not le a k whe n a conce ntra tion of 1000 pa rts pe r million
(ppm) of R --- 134a (1,1,1,2 te tra fluoroe tha ne ) re frige ra nt is introduce d a t the inle t of the filte r
a t a flow ra te of 57 sta nda rd lite rs pe r minute whe n te ste d in a ccorda nce with 4.3.6.2. The re frig-
e ra nt (R --- 134a ) sha ll conform to the cha ra cte ristics of AR I STANDAR D 700 a nd sha ll be dis-
pe rse d in a ir a t 24± 5_C a nd 50 pe rce nt ma ximum re la tive humidity (R H ). A filte r le a k sha ll be
de fine d a s the pre se nce of 1 ppm or more of R --- 134a in the e fflue nt a ir within two minute s a fte r
the introduction of the re frige ra nt a t the inle t of the filte r.
3.5.3 Moisture content of adsorbent. The moisture conte nt of the a dsorbe nt ta ke n imme di-
a te ly be fore pa cka ging sha ll not e xce e d 3.0 pe rce nt whe n te ste d a s spe cifie d in 4.3.6.3
3.5.4 Structural Integrity. The filte r sha ll withsta nd te sting a s spe cifie d in 4.3.6.4. Sa mple
filte rs sha ll show no e vide nce of cra cks, de nts or structura l da ma ge upon visua l inspe ction a fte r
comple tion of te sting.
3.5.5 Dimethylmethylphosphonate (DMMP) Gas life (de structive ). Afte r me e ting the re -
quire me nts of 3.5.4, the filte r sha ll ha ve a D MMP ga s life of not le ss tha n 100 minute s a t ra te d
flow (283 l/m) whe n subje cte d to a D MMP cha lle nge of 3.0± 0.2 milligra ms pe r lite r with a n a ir
stre a m te mpe ra ture of 30± 3_C a nd a ma ximum of 25 pe rce nt humidity. Bre a k conce ntra tion
sha ll be 0.04 microgra ms pe r lite r. This re quire me nt sha ll be me t whe n te ste d in a ccorda nce
with 4.3.6.5.
3.5.6 Cyanogen Chloride (CK) gas life (de structive ). The filte r sha ll ha ve a CK ga s life of
no le ss tha n 30 minute s a t ra te d flow (283 l/m) whe n subje cte d to a CK cha lle nge conce ntra tion
of 4.0± 0.2 milligra ms pe r lite r, with a n a ir stre a m re la tive humidity of 80± 3 pe rce nt a nd a ir
stre a m te mpe ra ture of 24± 3_C. Bre a k conce ntra tion sha ll be 8 microgra ms pe r lite r. F ilte rs
sha ll be e quilibra te d to 80 pe rce nt re la tive humidity prior to te st. This re quire me nt sha ll be me t
whe n te ste d in a ccorda nce with 4.3.6.6.
3.5.7 Adsorbent media gas life capacity. If a ma te ria l othe r tha n ASZ M --- TE DA ca rbon is
propose d a s the a dsorbe nt me dia , the ma te ria l must be pre --- qua lifie d in a ga s life te st progra m
in a dva nce of F irst Article inspe ction. The qua lifica tion te st progra m should de monstra te to the
G ove rnme nt tha t ga s life be fore a nd a fte r e nvironme nta l ope n --- a ir e xposure is e qua l or gre a te r
tha n tha t of ASZ M --- TE DA ca rbon for a ge nts hydroge n cya nide (AC), CK, phosge ne (CG ) a nd
D MMP a s liste d in E A --- C --- 1704 a nd a ny a dditiona l che mica l a ge nts or simula nts tha t ma y be
spe cifie d by the G ove rnme nt (se e 6.6). For those a ge nts or simula nts not liste d in this pa ra -
gra ph, the G ove rnme nt re se rve s the right to e sta blish the ga s life re quire me nts for those a ge nts
or simula nts.
5
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business