Hazardous Substances Precautions; Venting Toxic Gases; Liquid Nitrogen Safety Precautions - Thermo Scientific TRACE 1600 Hardware Manual

Preface

Liquid Nitrogen Safety Precautions

Hazardous Substances Precautions

Venting Toxic Gases

Liquid Nitrogen Safety Precautions
xxx TRACE 1600/1610 Hardware Manual
• NFPA 70, National Electrical Code
• NFPA 497, Recommended Practice for the Classification of Flammable Liquids, Gases,
or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical
Process Areas
• NFPA 13, Standard for the Installation of Sprinkler Systems
• NFPA 45, Standard on Fire Protection for Laboratories Using Chemicals
• NFPA 55, Standard for the Storage, Use, and Handling of Compressed Gases and
Cryogenic Fluids in Portable and Stationary Containers, Cylinders, and Tanks
• NFPA 68, 2007 Standard on Explosion Protection by Deflagration Venting
• NFPA 69, Standard on Explosion Prevention Systems
• NFPA 91, Standard for Exhaust Systems for Air Conveying of Vapors
• NFPA 255, Standard Method of Test of Surface Burning Characteristics of Building
Materials
OSHA 29CFR1910.103 1910.103 Hydrogen
WARNING Before using hazardous substances (toxic, harmful, and so on), read the
hazard indications and information reported in the applicable Material Safety Data Sheet
(MSDS.) Use Personal protection according to the safety requirements.
When analyzing toxic compounds be aware that during the normal operation of the GC some
of the sample might be vented outside the instrument through the inlet and detector exits;
therefore, make sure to vent the exhaust gases to a fume hood. Consult local Environmental
and Safety Regulations for instructions in exhausting fumes from your system.
Liquid nitrogen is a colorless, odorless, extremely cold liquid and gas under pressure. It can
cause rapid suffocation when concentrations are sufficient to reduce oxygen levels below
19.5%. A Self Contained Breathing Apparatus (SCBA) might be required. Contact with
liquid or cold vapors can cause severe frostbite. Cold vapors in the air will appear as a white
fog due to condensation of moisture. Oxygen concentrations must be monitored in the release
area. All cryogenic liquids produce large volumes of gas when they vaporize.
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