scope:

This military handbook presents criteria for the fabrication and construction of closely controlled environmental areas in which the following can be performed at Naval Shore activities:

a) Quality control;

b) Laboratory techniques and precision control;

c) Repair, assembly, calibration, and tests of components;

d) Photoprocessing of high-level photoreconnaissance;

e) Microminiaturization images;

f) Loading and unloading of film magazines;

g) Film editing and cutting;

h) Print inspection;

i) Dust-free operations.

The requirements could make it necessary to achieve dust-free areas with precise control over temperature and humidity. In many instances, it is necessary to eliminate particles 0.3 micron and larger from the controlled area.