Lamps. - SB-740-95-200062

SB 740-95-20

fication shall be per severity indicated with applicable

depending on the number of years from manufacturing

Quality Defect Codes cited in appendix A.

date of the lamp shown on Part Identification Label.

d. Inspection Methods.

(1) For a lot of item, Inspection Level (IL) S-3

lamp assemblies shall not be exposed to direct light for a

applies, (see MIL-STD-105, table 1, Master Sampling

period of 24 hours prior to testing for brightness.

(d) The inspector must be dark adapted

Plan).

(2) For a lot of item, the following Acceptable

before conducting this test. For this procedure, allowing

Quality Levels (AQL's) apply:

the eyes to adjust for 15 minutes in a totally darkened

Majors Minors

room is sufficient dark adaption.

(e) The actual brightness test shall be

0.65

4.0 See MIL-STD-105, table 2. Acceptance

and Rejection Numbers (Single Sampling

performed in a dark room by placing the test piece

Plan).

approximately 18 inches from the eye.

(f) Sight through the filter at the test piece

(3) Select, in a random manner, a sample

from the lot of Item.

and determine if the test piece is acceptable. To be

(4) Visually inspect the packaging of each

acceptable, the light must be visible through the filter or

sample item for defects cited in appendix A.

objects illuminated by the light (i.e., scale graduations,

(5) Remove packaging.

reticles, etc.) must be visible and readable.

(6) Visually inspect each sample item for

(g) Any test piece not meeting this

defects cited in appendix A.

requirement shall be set aside for disposition.

(7) Visually inspect each item for damage to

CHART 1

illuminated elements such as vials, counter digits, and

AGE OF

NEUTRAL DENSITY

RETEST

reticles. Should damage be found, classify the item as a

LAMP

FILTER

(EXTENDED OR

major defective.

(YEARS)

(OPTICAL DENSITY)

DEGRADED LIFE)

(8) Conduct manual functional test. As

0.15

NOTE D

applicable, manually function or operate the controls

0.10

NOTE C

(knobs, levers, handles), covers, sleeves, extendable

NOTE A

NOTE B

legs, etc. In event item fails to function, classify the item

NOTE A.

Inspection for serviceability (i.e., 2 year

as a major defective.

remaining useful life) shall be performed

(9) Visually inspect for presence of

as stated in f above except that no filter

radioactive marking, or labeling. In the event the

shall be utilized. To inspect for extended

marking or labeling is incomplete, i.e., missing license

service life, see NOTE B.

number, serial number, date of manufacture, classify the

NOTE B.

Inspection shall be performed as stated in

item as major defective.

f above except that a neutral density filter

(10)

Reject the lot of Item 1 (i.e., all items

with optical density of 0.10 shall be

having the same level of protection) if the number of

utilized. Items meeting this requirement

items classified as major defectives exceed the

may be treated as having 3 years

acceptance number of major defectives allowed in MIL-

remaining useful life.

To inspect for

STD-105, table 2 for the appropriate sample size and an

extended service life, see NOTE C. To

AQL of 0.65, and/or if the number of units classified as

inspect for degraded service life, see

minor defectives exceeds the acceptance number of

NOTE A.

minor defectives allowed in table 2 for the appropriate

NOTE C.

Inspection shall be performed as stated in

sample size and an AQL of 4.0.

f above except that a neutral density filter

(11) A defective item will remain defective

with optical density of 0.15 shall be

until such time as repaired or replaced.

utilized. Items meeting this requirement

(12) Inspection procedure for Radioluminous

may be treated as having 4 years

Lamps.

remaining useful life.

To inspect for

(a) A test to determine any removable

degraded service life, see NOTE D.

radiological contamination should be performed. This

NOTE D.

Inspection shall be performed to determine

test utilizes a liquid scintillation system. Operating

a degraded, but usable service life by

procedures and acceptable radiological levels (measured

following NOTE C.

in disintegrations per minute) must be obtained from the

Radiation Protection Officer (RPO). Do not perform

C-5. Report and Reporting. In reference to the report

further inspections until satisfactory results of this test

and reporting required by paragraph 2-8 the following

have been obtained.

exceptions apply to the general instructions for

(b) The brightness test shall be conducted C-

preparation of the Munitions Surveillance Report (DA

2 using several density filters (Oriel Corporation Model

Numbers 5030 and 5095, or equivalent). The proper

filter shall be selected as designated in Chart 1,

C-2