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LABORATORY TEST METHOD NO. H-6
CORROSION RESISTANCE OF UMBRELLAS
1. PURPOSE:
To determine resistance to corrosion formation on umbrella ribs
and spreaders made of steel,brass,chromium or other metals.
2. PRINCIPLE:
Umbrella is subjected to water and humidity under controlled
conditions of time and temperature.
3. APPARATUS AND MATERIALS:
3.1 Launderometer
3.2 Tap water
3.3 Spray bottle or sink spray attachment
3.4 Timer
4. PROCEDURE:
4.1 Fill launderometer with 38°C (100°F) water and close
lid.
4.2 Open umbrellas and spray water thoroughly around ribs,
spreaders, and complete underside. Close umbrella and and place on
top rack of launderometer, close lid.
4.3 Set timer or make note of start time on paper.
4.4 After 72 hours remove specimens.
5. EVALUATION:
Open specimens and visually check for any formation of
corrosion on ribs or spreaders. Note any discoloration of fabric
or plastic parts such as handle.
6. REPORT
Report any corrosion, its location, and any discoloration of
fabric or plastic parts such as handle.
_HARDLINES
TEST METHOD_
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