PPP-C-2020A
3.3.1 Unit pack. A specified unit quantity +1 or -0 percent of chemical shall be packed and preserved (see 6.2).
3.3.1.1 Type I, class 1 - glass bottles, jars, vials, tubes, and ampoules. Glass bottles, jars, vials, tubes, and ampoules shall conform to the requirements as specified in 3.2.1.1.1 except that the glass containers shall be enclosed upright and cushioned in one of the following enclosures:
(a) Enclosure A. Each unit container shall be placed in a moisture vaporproof, telescop- ing can conforming to type II, grade B of MIL-C-3955 and to the general packing requirements of a 1G fiber drum of 49 CPR or ICAO-TDGA, as applicable. The metal ends shall be a mini- mum 28 gauge. The unit container shall be cushioned with a sufficient quantity of vermiculite conforming to A-A-52450 (type I, class 3 of ASTM C 516) to absorb the total amount of liquid in the appropriate container. The vermiculite shall be uniformly distributed around all surfaces of the unit container and shall completely fill all voids in the can or drum. The can or drum shall be sealed with tape conforming to type II of MIL-T-43036. The tape shall be applied no less than one and one-third times around the circumference of the can or drum.
(b) Enclosure B. Each unit container shall be placed in a tin or terneplate slip cover or multiple friction cover closure can conforming to the general packing requirements of a 1A2 con- tainer of 49 CPR or ICAO-TDGA, as applicable and to type V or type VI, class 2 of PPP-C-96. The can shall be coated in accordance with plan B of PPP-C-96 with side seam striped. The can shall be tightly closed and sealed with with a secondary closure. The secondary closure shall consist of a shrinkable plastic sleeve. Unit containers shall be cushioned with ver- miculite as specified for enclosure A.
(c) Enclosure C. Each unit container shall be placed in a two-part expanded polysty- rene case conforming to the general packing requirements of a 4H1 container of 49 CPR or ICAO-TDGA, as applicable.
3.3.1.2 Type II, class 1 - metal cans. Metal cans shall conform to the general packing require- ments of a 1A1 or 1A2 container of 49 CPR or ICAO-TDGA, as applicable and to PPP-C-96. The type, class, type of closure, interior coating, and size shall be as specified (see 6.2). The exte- rior coating of the cans shall be coated in accordance with plan B of PPP-C-96 with side seam striped.
3.3.1.3 Type II, class 2 - metal pails and drums. Metal pails and drums shall conform to the applicable requirements of table VI as specified (see 6.2). Special closure, venting devices, inte- rior coating, and corrosion resistance of hardware components requirements shall be as speci- fied (see 6.2). The exterior coating of all level A metal pails and drums shall be applied as specified in PPP-P-704 and PPP-D-729, respectively.
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