MIL --- PR F --- 51193E (E A)
4.3.2.2 For tests. Sa mple size s for D MMP a nd CK ga s life te sting sha ll be a s follows:
TABLE I. Sa mpling Pla n for F ilte r G a s Life
Lot size
D MMP sa mple size
CK sa mple size
30 to 150
5
5
151 to 500
8
8
501 to 5000
13
13
4.3.3 Inspection procedure.
4.3.3.1 For examination. E ve ry ite m in the lot sha ll be inspe cte d for critica l cha ra cte ristics.
Sa mple filte rs sha ll be e xa mine d a nd te ste d in a ccorda nce with the cla ssifica tion of cha ra cte ris-
tics in 4.3.5. If a filte r is found tha t doe s not conform to le a ka ge or a ir flow re sista nce re quire -
me nts, the non --- conforming filte r sha ll be re je cte d a nd re move d from the lot. For ma jor
cha ra cte ristics othe r tha n a ir flow re sista nce , fa ilure of sa mple s to conform to a ny cha ra cte ristic
ba se d on sa mpling a nd a cce pta nce crite ria spe cifie d the re in sha ll be ca use for re je ction of the
lot. Fa ilure of a ny sa mple filte r to conform to a ny minor cha ra cte ristic ba se d on the sa mpling
a nd a cce pta nce crite ria spe cifie d the re in ma y be ca use for re je ction of the lot re pre se nte d.
4.3.3.2 For test. A 100 gra m sa mple of a dsorbe nt sha ll be ta ke n during the filling of the first
a nd la st filte r ma nufa cture d e a ch da y a nd pla ce d in se pa ra te ope n conta ine rs. Those sa mple s of
a dsorbe nt sha ll be e xpose d to the sa me conditions of te mpe ra ture a nd humidity a s the ir a ssoci-
a te d filte rs. E a ch filte r sha ll be te ste d for a ir flow re sista nce (4.3.6.1) a nd le a ka ge (4.3.6.2). Fol-
lowing le a ka ge te sting, filte rs sha ll be pa cka ge d. Concurre nt with or imme dia te ly following the
pa cka ging of the filte rs corre sponding to e a ch a dsorbe nt sa mple , a 10 gra m portion of e a ch
mixe d a dsorbe nt sa mple sha ll be te ste d for moisture conte nt in a ccorda nce with 4.3.6.3. Pa ck-
a ge d sa mple filte rs sha ll the n be forwa rde d to the G ove rnme nt a nd ha lf of the m subje cte d to
structura l inte grity te sting in a ccorda nce with 4.3.6.4. Following structura l inte grity te sting (se e
Ta ble I), the G ove rnme nt sha ll conduct ga s life te sts on sa mple filte rs in a ccorda nce with 4.3.6.5
a nd 4.3.6.6. Any filte r fa iling le a ka ge or a ir flow re sista nce re quire me nts sha ll be re je cte d a nd
re move d from the lot. If a ny sa mple filte r from the lot fa ils to me e t the re quire me nts for struc-
tura l inte grity, D MMP va lue , CK va lue , dime nsions or workma nship, the lot re pre se nte d sha ll
be re je cte d.
4.3.4 Inspection characteristics. Critica l cha ra cte ristics a re cha ra cte ristics whose noncon -
forma nce to spe cifie d re quire me nts is like ly to re sult in ha za rdous or unsa fe conditions for indi-
8
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