MIL-PRF-62528B(AT)
3.2.2 Recycled, recovered, or environmentally preferable materials. Recycled,
recovered, or environmentally preferable materials should be used to the maximum extent
possible provided that the material meets or exceeds the operational and maintenance
requirements, and promotes economically advantageous life cycle costs.
3.3 Environmental conditions.
3.3.1 High temperature. The regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.5
through 3.9.7, 3.9.9, and 3.9.10, when exposed to temperatures up to 220F (104C); the
regulator shall meet the requirements of 3.9.2, except the regulated voltage shall be 26.5 ±0.7 V.
After exposure, the regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.4a through d, and
3.9.5 (see 4.6.4.1).
3.3.2 Low temperature. The regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.5
through 3.9.7, 3.9.9, and 3.9.10, after storage at temperatures down to -80F (-62C) and during
exposure to temperatures down to -65F (-54C). The regulator shall also meet the requirements
of 3.9.2, except that the regulated voltage shall be 29.5 ±0.7V. Subsequently, the regulator shall
meet the requirements of 3.9.1, 3.9.2, 3.9.4a thru d; and 3.9.5 (see 4.6.4.2).
3.3.3 Vibration. When tested as specified in 4.6.4.5, the regulator shall evidence no
breakage, loosening of parts, abrasion, or other physical damage. Subsequent to the test, the
regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.4, and 3.9.5.
3.3.4 Shock. When tested as specified (see 4.6.4.6), the regulator shall evidence no
breakage, loosened or distorted parts, or other physical damage. Subsequent to the test, the
regulator shall meet the requirements of 3.9.1, 3.9.2, 3.9.4, and 3.9.5.
3.3.5 Corrosion resistance. The regulator shall have corrosion resistance equal or better
than 1020 steel sheet, galvanized with a minimum 0.75 mil zinc coating, zinc phosphate
pretreatment, epoxy prime paint and CARC top coat. No servicing, adjustment or replacement
parts shall be necessary (see 4.6.4.4).
3.3.6 Fungus resistance. The regulator shall not support microbial growth that would
adversely affect performance (see 4.6.4.3).
3.3.7 Waterproofness. The regulator shall meet the waterproofness requirements in
accordance with 4.6.4.7. Subsequent to exposure, the regulator shall meet the requirements
of 3.9.2.
3.4 Weight. The regulator weight shall be no more than 18.5 pounds (lbs)
(8.39 kilograms (kg)) (see 4.6.2).
3.5 Design.
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