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|  MIL-C-24196A(SH)
(Application for copies should be addressed to the American Society for
Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.)
AIRCRAFT POROUS MEDIA, INC.
Field Service Report No. 10C - Evaluating Effectiveness of
Filter Element Cleaning Methods.
(Application for copies should be addressed to the Aircraft Porous Media,
Inc., 32 Sea Cliff Ave., Glen Cove, New York, NY 11542.)
(Nongovernment standards and other publications are normally available
from the organizations which prepare or which distribute the documents. These
documents also may be available in or through libraries or other informational
services.)
2.3 Order of precedence. In the event of a conflict between the text of
this specification and the references cited herein (except for associated
detail specifications, specification sheets or MS standards), the text of this
specification shall take precedence. Nothing in this specification, however,
shall supersede applicable laws and regulations unless a specific exemption
has been obtained.
3.
REQUIREMENTS
3.1 First article. When specified in the contract or purchase order, a
sample shall be subjected to first article inspection (see 4.3 and 6.3).
3.2 Construction. The cleaning system shall remove contaminants from
service dirtied air filters, electrostatic precipitator cells, lube-oil and
hydraulic system filters, valves and other components within its capacity.
The system shall consist of an ultrasonic generator, transducers, cleaning tank,
rinse tank, recirculating system, cabinets and controls. The recirculating
system shall incorporate a filter, heater, and pump. Means shall be provided to
control and adjust cleaning solution temperature. A safety thermostat shall also
be provided (see 3.2.5). The system shall be for use with aqueous detergent
solutions and water rinsing. System components requiring maintenance or
replacement shall be readily accessible from the top or front of the unit or cabinet.
The equipment shall be constructed of parts that are new, without defects, and free
of repair. The equipment shall be complete so that when connected to the specified
utilities, it can be used for any operation for which it is being acquired.
3.2.1 Cleaning. The system shall meet the cleaning tests as specified
(see 4.6.4, 4.6.5, and 4.6.6).
3.2.2 Inclination. The system shall be so constructed that inclination
of the equipment of 30 degrees in any direction shall not affect operation or
cause spillage of the cleaning solution from the tank. Liquid fill limit
shall be indicated by a permanent mark or controlled by an overflow outlet.
3.2.3 Submarine hatch access. When specified for submarine installation
(see 6.2.1), the components of the system shall be of such size or construction
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