The ex symbol, Environmental safety, Vironmental safety – Goulds Pumps API 3171 - IOM User Manual
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Hazard levels
Hazard level
Indication
DANGER:
A hazardous situation which, if not avoided, will
result in death or serious injury
WARNING:
A hazardous situation which, if not avoided, could
result in death or serious injury
CAUTION:
A hazardous situation which, if not avoided, could
result in minor or moderate injury
NOTICE:
• A potential situation which, if not avoided,
could result in undesirable conditions
• A practice not related to personal injury
Hazard categories
Hazard categories can either fall under hazard levels or let specific symbols replace the ordinary hazard
level symbols.
Electrical hazards are indicated by the following specific symbol:
Electrical Hazard:
These are examples of other categories that can occur. They fall under the ordinary hazard levels and may
use complementing symbols:
• Crush hazard
• Cutting hazard
• Arc flash hazard
The Ex symbol
The Ex symbol indicates safety regulations for Ex-approved products when used in atmospheres that are
potentially explosive or flammable.
Environmental safety
The work area
Always keep the station clean to avoid and/or discover emissions.
Waste and emissions regulations
Observe these safety regulations regarding waste and emissions:
• Appropriately dispose of all waste.
• Handle and dispose of the processed liquid in compliance with applicable environmental regulations.
• Clean up all spills in accordance with safety and environmental procedures.
• Report all environmental emissions to the appropriate authorities.
Introduction and Safety
Model API 3171 Installation, Operation, and Maintenance Manual
5