W-C -o0490A
9 December 196’3
Interim Revision of
Fed. Spec. ‘fl?-C-@O
w March
1961
INTERIM FSDERALSPECIFICATION
CIEANINGmors AND
~ OF IWRROUS
SURFACESFOR CRGANICCOATINGS
lhis InterimFederalSpecificationwas developed by the
Army Materials and Mechanics Research
Center,AMXlJR-TM,
Watertown,Massachusetts021’72,baeed tqx.ncurrently
availabletechnicalinfonuation. It ie recommendedthat
Federalagenciesuse it in procurementand forwardrecom-
wendatioas for changesto the preparingactivityat the
addressshownabove.
1. SCOPEAND CLASSIFICATION
1.1 Scope. This
specification coversthe cleaningmethodsand pretreat-
ment of ferrousmetals
for the applicationof organiccoatings(paint,
varnish,lacquer,enemel,eti.). In sdditionthis specificationcoversthe
pretreatmentof ferrousmetal items containingsti areas of zincor aluwl.-
num surfacesor accessoryfabricated@rts of zinc or aluminwnrequiring
treatment(see 6.I.,6.12,and 6.13).
1.2 Classification. This specificationcoversthe followingcleaning
methodsand surfacepretreatmentprocesses:
1.2.1 Surfacecleaningshall bc by the followingmethodsas specified
(see 6.3):
Method I -
Mechanicalor abrasiveclesning(sand,shot, grit,seed or
vapor blasting,or tumbling)(for ferroussurfacesonly)
Method II -
Solvent(immersion,sprayor vapor)
Methcd III - Hot alkaline (immersion, spray or electrolytic) (for
ferrous surfaces only)
Method IV - Emulsion (with or without added water)
Method V -
Alkallne derueting (for ferrtms surfaces only)
Method VI -
Phosphoric acid (alcoholic, detergent or solvent type
with detergent)
Area MFFP (see 6.16)
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