UL COPYRIGHTED MATERIAL –
NOT AUTHORIZED FOR FURTHER REPRODUCTION OR
DISTRIBUTION WITHOUT PERMISSION FROM UL
SA23.7 For a gasket secured by an adhesive and exposed to a temperature rise not exceeding 35°C
(63°F), a sample of the gasket secured to the mounting surface by the adhesive shall be exposed for 72
hours to each of the following conditions:
a) A temperature of 100.0 ±1.0°C (212.0 ±1.8°F),
b) Immersion in distilled water at a temperature of 23.0 ±1.0°C (73.0 ±1.8°F), and
c) A temperature of minus 10.0 ±1.0°C (14.0 ±1.8°F).
The force required to peel the gasket from its mounting surface after exposure shall not be less than 50
percent of the value determined using the unconditioned sample, but not less than 2 pounds per inch
(0.04 kilograms per millimeter) of gasket width.
SA23.8 The temperature rises specified in this section correspond to the maximum temperature rise
measured on the gasket during the temperature test. A material other than those mentioned in this section
shall be nonabsorptive and it, and all materials having a higher temperature rise, shall provide equivalent
resistance to aging and temperatures.
SA24 Label Adhesion
Section SA24 effective April 13, 1993
SA24.1 In addition to the requirements covered in 52.1 – 52.6 of Part I, labels provided in a marine
converter or inverter intended for open cockpit or weatherdeck mounting shall be investigated in
accordance with SA24.2.
SA24.2 OPEN COCKPIT AND WEATHERDECK EXPOSURE – Three test panels, see 52.2, are to be
exposed to ultraviolet rays and water spray for 720 hours. The test cycle is to consist of exposure to
ultraviolet rays for 102 minutes followed by exposure to ultraviolet rays and a fine spray of water for 18
minutes using Type D apparatus, as described in Practice for Operating Light- and Water-Exposure
Apparatus (Carbon Arc Type) for Exposure of Nonmetallic Materials, ASTM G23-1969.
MARKING
SA25 Details
Section SA25 effective April 13, 1993
SA25.1 A marine converter or inverter which employs a battery charging circuit shall be marked to
indicate that it is intended for continuous duty.
SA25.2 A marine converter which does not incorporate a battery charging circuit shall be marked ″This
converter is not intended for charging batteries″ or the equivalent.
SA25.3 A marine converter or inverter which employs a battery charging circuit shall be marked, where
readily visible to the user when charging batteries, to specify the type of batteries to be charged, the
number of cells in the battery, and the ampere-hour or equivalent rating of the battery.
Exception: The ampere-hour rating need not be marked if the battery charging circuit is current-limited.
OCTOBER 15, 2004 UL 458 SA19
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