TIA-455-189:1992 (R2012)

$22.75

FOTP-189 Ozone Exposure Test for Fiber Optic Components

Published By	Publication Date	Number of Pages
TIA	1992	18

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Category: TIA

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Description

Intent. ¹The intent of this
procedure is to determine the ability of fiber optic components to
withstand the effects of controlled amounts of ozone. Although
intended primarily for the evaluation of parts such as
interconnecting devices, the method may be applied to other
components when applicable and when required by a Detail
Specification.

Failure Modes. Potential failure modes for this
test include, but are not limited to:

a. Loosening or breaking of parts,

b. Insert bonding failure,

c. Excessive swelling of resilient materials, or other
degradation of elastomers,

d. Damage to interface seals

Ozone Hazard. Ozone is a physiologically
hazardous gas at elevated concentrations. Levels of acceptable
industrial exposure have been established by the American
Conference of Governmental Industrial Hygienists, 6500 Glenway
Ave., Building D-7, Cincinnati, Ohio 45211. Ozone has a distinctive
odor which is initially discernible at low concentrations. It is
likely to be present whenever voltages exist which are sufficient
to cause partial or complete discharges in air or in other
atmospheres containing oxygen. (It may also be formed in air by
ultraviolet radiation, as a combustion product, etc.) When the odor
of ozone is persistently present or when ozone generating
conditions continue, temporary impairment of the sense of smell
could occur. Thus the concentration of ozone in the atmosphere
should be measured using commercially available monitoring devices.
Appropriate means, such as installation of exhaust vents, should be
taken to maintain ozone concentrations in working areas within
acceptable levels.

For citizen health reasons, it should be noted that many large
cities of the world become very concerned whenever ozone levels
exceed 100 pphm (parts per hundred million).

¹ This method is similar to Method 1007.1 of
MIL-STD-1344A.

Additional information