MIL-PRF-8565K
b. When the entire contract quantity is to be delivered in several shipments over a period of
months or years (such as direct vendor delivery style contracts), the inspection lot size and
resulting sample quantity shall consist of the quantity of batteries that the Government or
contractor estimates will be delivered during a period of up to three months.
(1) If the batteries have slow self-discharge and are normally activated as they are
produced, then batteries shall be delivered not later than 6 months after activation (see 6.15.1 and
6.15.6) and shall be delivered with not less than nominal rated capacity (see 6.15.11).
(2) If the batteries, monoblocks, or cells are to be stored in a dry-charged state before
such activation, the total time of dry charge and activation shall be not greater than 1 year before
delivery and the time since activation shall be not greater than 6 months. Items stored in a dry-
charged state before activation shall be stored with each monoblock or cell sealed to prevent
moisture intrusion. Dry-charged batteries delivered after activation shall be delivered with not
less than nominal rated capacity (see 6.15.11).
4.3.3 Sample size and selection for groups A and B inspection. Each unit shall undergo
group A inspection (see 6.8). Unless otherwise specified by the contract or purchase order, the
sample size for group B shall be as shown in table IV (see 6.2).
4.3.4 Group A inspection. Each unit shall be subjected to the examination and test
requirements in the applicable specification sheet (see 6.8). Each unit shall meet the requirements
for group A inspection in the applicable specification sheet. Defective units discovered during
group A inspection shall be individually rejected. Corrective action for group A strength of vent
tube failures (see 3.8.5 and 4.5.5) shall be provided to the qualifying activity for approval before
start of manufacture of the next production lot.
4.3.5 Group B inspection. The group B tests shall be performed in accordance with the
applicable specification sheet (see 6.8).
4.4 Inspection conditions. Unless otherwise specified in the description of the test, all
inspections shall be performed in accordance with the following test conditions.
4.4.1 Temperature and storage conditions. Unless otherwise specified in the description of
the test, all measurements, tests, and capacity discharges shall be made at room temperature,
ambient atmospheric pressure, and ambient relative humidity. Unless otherwise specified in the
description of the test, room temperature for all tests except group A inspection shall be
25° ± 5 °C (77° ± 9 °F). Room temperature for group A inspection shall be 24° ± 8 °C
(75° ± 15 °F). Unless otherwise specified in the description of the test, all high and low
temperature charge and discharge tests shall be conducted at the temperature indicated in the
applicable test paragraph; a tolerance of ±2°C (3.6°F) shall be allowed. Stabilize the battery in
the environmental chamber at the specified temperature for 22 ± 2 hours before discharge.
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