will be permitted providing they are stoned or ground and
as superimposed on reticle shall have no more than 3
do not extend more than 1/16 inch into the clear
pieces of dirt or other foreign matter greater in size than
aperture. The presence of chips on the reticle, and
the width of the smallest reticle line or a total of 5 pieces
between the reticle and eyelens will be permitted
over entire reticle surface. Foreign matter on other
provided they are ground or stoned and do not extend
optics shall be treated as pits and digs, but should never
into the clear aperture. Areas that have been stoned or
exceed the size given in the applicable table(s). Should
ground will not cast a shadow on the prism or permit
such a condition exist classify the item as a major
seepage of sealing compound. Should such a condition
(8) Coating. Optics with not more than 25 per-
exist, classify the item as a major defective.
(5) Scratches and lint. Scratches and lint will be
cent of the coating deteriorated, will be
permitted provided the total effect of such discrepancies
acceptable provided the deterioration is not concentrated
do not exceed that allowed in the applicable table(s)
in a given area.
Crushes or rubs not heavily
cited in paragraph (12). For example, the number of
concentrated are permissible provided they do not
discrepancies may exceed that specified in the table, if
extend into the optic surface. Should such a condition
the dimensions of such discrepancies are proportionally
exist classify the item as a major defective.
(9) Cement separation. Cement separation shall
smaller than that specified in the table(s). Likewise, if
the number of discrepancies are considerably less than
not be permitted. Should such a condition exist classify
that permitted in the table(s), they may be proportionally
the item as a major defective.
(10) Polished surfaces.
larger that the maximum specified in the table. However,
no discrepancy will exceed the table(s), size 80. Should
surfaces shall show no evidence of greyness or stain.
such damage be found to exceed the table(s), size 80, or
Should such a condition exist, classify the item as a
as described above; classify the item as a major
(11) Radioluminous items.
(6) Digs, pits, and bubbles. Digs, pits and
radioluminous items to provide illumination is a major
bubbles will be permitted in accordance with criteria
defect. Do not open, vent or purge any instrument
given in the table(s) cited below. deviation from the
containing a radioluminous source if there is no
criteria given in the table(s) are permissible as specified
for scratches cited in (e) above.
Protection Officer (RPO) must be notified, and the
discrepancy will exceed a size 50. Should such damage
defective unit will be replaced by a serviceable one.
be found to exceed the table(s), size 50, or paragraph (e)
Radioluminous sources shall be inspected by another
above, classify the item as a major defective.
appendix in this SB.
(7) Dirt. With reticle focused by means of the
eyepiece, the central area of reticle, and/or field lens
Table C-1 Prisms and Mirrors
Up to 1.250
Table C-2. Field Lens (see note 2)
Number of Size of
Up to 1.250