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Preliminary Pages
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High/Low Temperature Hazard - Wear protective clothing when handling
equipment at extremes of temperature.
Materials testing is often carried out at non-ambient temperatures using ovens,
furnaces or cryogenic chambers. Extreme temperature means an operating
temperature exceeding 60 °C (140 °F) or below 0 °C (32 °F). You must use
protective clothing, such as gloves, when handling equipment at these
temperatures. Display a warning notice concerning low or high temperature
operation whenever temperature control equipment is in use. You should note
that the hazard from extreme temperature can extend beyond the immediate
area of the test.
Crush Hazard - Take care when installing or removing a specimen,
assembly, structure, or load string component.
Installation or removal of a specimen, assembly, structure, or load string
component involves working inside the hazard area between the grips or
fixtures. When working in this area, ensure that other personnel cannot operate
any of the system controls. Keep clear of the jaws of a grip or fixture at all times.
Keep clear of the hazard area between the grips or fixtures during actuator or
crosshead movement. Ensure that all actuator or crosshead movements
necessary for installation or removal are slow and, where possible, at a low
force setting.
Hazard - Do not place a testing system off-line from computer control
without first ensuring that no actuator or crosshead movement will occur
upon transfer to manual control.
The actuator or crosshead will immediately respond to manual control settings
when the system is placed off-line from computer control. Before transferring to
manual control, make sure that the control settings are such that unexpected
actuator or crosshead movement cannot occur.
Robotic Motion Hazard - Keep clear of the operating envelope of a robotic
device unless the device is de-activated.
The robot in an automated testing system presents a hazard because its
movements are hard to predict. The robot can go instantly from a waiting state
to high speed operation in several axes of motion. During system operation,
keep away from the operating envelope of the robot. De-activate the robot
before entering the envelope for any purpose, such as reloading the specimen
magazine.
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