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Table 1. Symbols and definitions
Symbol Definition
Keep dry
Ingress protection rating for a device that is
protected from the intrusion of solid foreign
objects as small as 12.5 mm in diameter
and is protected from vertically dripping
water when the device is tilted at an angle
up to 15 degrees
Expiration date
Date of manufacture
Catalog number
Manufacturing facility
Temperature limits for storage conditions
Humidity limits
Pressure limits
Manufacturer