Symbols

The following table describes symbols that may be displayed on Thermo Fisher Scientific instruments, consumables, or reagents.

Symbol	Description	Symbol	Description
	Manufacturer		Lower limit of temperature
	Date of manufacture		Upper limit of temperature
	Use by		Upper and lower limits of temperature
	Batch code		Upper and lower limits of humidity
	Catalog number		Biological risks
	Serial number		Do not reuse
	Fragile. Handle with care.		Consult Instructions for Use
	Protect from light		Caution
	Contains sufficient for <n> tests		Sterilized using asceptic processing techniques
	Read Safety Data Sheet		Country of manufacture
	Unique device identifier		In Vitro Diagnostic medical device
	CAUTION: Federal law restricts this device to sale by or on order of a physician		Indicates conformity with European Union requirements
	Authorised representative in the European community		Indicates conformity with United Kingdom requirements
	For Investigational Use Only. The performance characteristics have not been established.		Negative control
	Positive control		Contains biological material of animal origin
	Corrosive		Health hazard/Hazardous to the ozone layer
	Serious health hazard