PPP-P-40C
TABLE I. Preservation and packaging. (Table I is on pages 18 through 43.)
3.4.1 Preservative protection - intimate wrap. A greaseproof wrap of material conforming to
MIL-B-22191, type II or QQ-A-1876 (type and class optional) shall be utilized for items coated
with a preservative in accordance with MIL-STD-2073-1. Preserved items placed directly into a
greaseproof barrier bag do not require the wrap unless sharp corners or projections are subject to
puncturing the barrier bag. Parts and items coated with MIL-PRF-16173, grade 1 or grade 4
preservatives and subsequently dried, or parts enclosed in volatile corrosion inhibitors (VCI)
treated barrier style C, D, or G of MIL-P-3420 are exempt from wrapping as specified herein.
3.4.2 Methods of preservation (unit protection). In addition to the requirements of
MIL-STD-2073-1, the following requirements for basic methods and submethods of
MIL-STD-2073-1 shall apply. Unless otherwise specified (see 6.2 and 6.3), methods of
preservation (unit protection) shall be as specified in table I, column 3 and in accordance with
MIL-STD-2073-1. In the event two or more methods of preservation are listed in table I, the
method selected shall be at the option of the supplier.
3.4.2.1 Plastic coating. Unless otherwise specified (see 6.2), plastic coating utilized in
preservation shall conform to MIL-P-149, type II. After the compound sets, the item shall be
boxed, canned, or wrapped in a greaseproof barrier material to retain the oil which exudes from
the compound. Coated items shall be blocked, or cushioned as necessary to ensure that the static
load is not greater than 30 pounds per square inch (206.84 kilopascal (kPa)). The compound
shall be applied in such a manner that, when removed, none shall be retained in crevices, oil holes,
or similar cavities. Directions for removal of coating shall be included in each package. The
caution marker shall read as follows: "CAUTION: TO REMOVE PROTECTIVE COATING,
SPLIT AND PEEL, USING A CHISEL MADE OF WOOD OR PLASTIC. DO NOT USE
SHARP METAL TOOLS OR SOLVENTS TO REMOVE COATING." Identification markings
may be applied to packs prior to the application of the strippable compound.
3.4.2.2 Volatile corrosion inhibitors (VCI). When specified (see 6.2), VCI treated materials may
be used as an alternate to the methods of preservation specified in table I. Unless otherwise
specified (see 6.2), the preservation procedures shall be in accordance with MIL-I-8574. When
VCI materials are used, contact preservatives shall not be required. Transparent, flexible, sealable
VCI films shall conform to MIL-B-22019, and VCI treated bags shall conform to MIL-B-22020.
When items are unit packaged with VCI treated materials, unit packages shall have a caution
label, or markings as follows: "WASH HANDS AFTER HANDLING PRESERVATION
MATERIAL TO AVOID IRRITATION OF EYES AND SKIN." Closure of VCI barrier
wrapped items shall be accomplished by taping all seams with pressure-sensitive tape conforming
to ASTM D 5486 to form an airtight enclosure.
3.4.2.3 Transparent plastic packages. Alternately, tools may be unit packaged in heat sealed
transparent materials. The package shall be capable of meeting the tests specified in
MIL-STD-2073-1, for the method of preservation specified in table I for the applicable tools.
For all methods of preservation, except method IB, film and bag classification types I or II of
MIL-B-22191 shall apply. Film and bag classification of MIL-B-22191 may be used for
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