SlideServe
Télécharger Obtenir Pro
Menu
Accueil Pro
Préférences
ApparenceLight Aide et commentaires
© SlideServe · v2026

Liquid Nitrogen and Cryogenics Training Program

chava avatar
chava
16 diapositives · 686 Views · Aug 21, 2012

Liquid Nitrogen and Cryogenics Training Program. Prepared by: Kathryn Billings. Potential Hazards Health:. Vapors may cause dizziness or asphyxiation without warning. Vapors from liquefied gas are initially heavier than air and spread along ground.

#wash #mercury #cryopreservation #high-temperature superconductivity #bubble #lotion #basic training #gargle
Liquid Nitrogen and Cryogenics Training Program - slide 1
01 / 16Liquid Nitrogen and Cryogenics Training Program
1 / 17

Télécharger la présentation

Liquid Nitrogen and Cryogenics Training Program
Une image / un lien ci-dessous est fourni (tel quel) pour télécharger la présentation

Politique de téléchargement : le contenu du site vous est fourni TEL QUEL pour votre information et votre usage personnel ; il ne peut être vendu, concédé sous licence ni partagé sur d’autres sites sans l’accord de son auteur.Le contenu vous est fourni TEL QUEL, pour votre information et votre usage personnel uniquement. Téléchargez la présentation en cliquant sur ce lien. Lors du téléchargement, si vous ne parvenez pas à télécharger une présentation, l’éditeur a peut-être supprimé le fichier de son serveur.Pendant le téléchargement, si vous ne parvenez pas à obtenir une présentation, le fichier a peut-être été supprimé par l’éditeur.

F I N

Plus de contenu associé

Transcription de la présentation

  1. Liquid Nitrogen and Cryogenics Training Program Prepared by: Kathryn Billings

  2. Potential HazardsHealth: • Vapors may cause dizziness or asphyxiation without warning. • Vapors from liquefied gas are initially heavier than air and spread along ground. • Contact with gas or liquefied gas may cause burns, severe injury, and/or frostbite.

  3. Public Safety • Immediately call emergency personnel in the event of a large spill or leak. 9-1-1 from campus phone or 438-8631 for ISUPD dispatcher • Isolate large spills or leaks for at least 100 meters in all directions. • Keep unauthorized personnel away. • Stay upwind. • Keep out of low areas. • Ventilate closed spaces before entering.

  4. Container Requirements • Closed container with a loose fitting top that allows venting. • Use only vessels designed for extreme cold (i.e. insulated). • Vessel must have carrying handles or be on wheels.

  5. Potential HazardsExplosion: • Liquid Nitrogen must be transported and stored in an appropriate container containing pressure relief devices. • Otherwise, when the pressure builds up, • the stopper could be "rocketed out" • or worse, the container could explode

  6. Appropriate Containers Examples of acceptable cryogenic Dewar's:

  7. Inappropriate Containers • DO NOT use open, un-insulated or glass containers!

  8. Liquid Nitrogen Tank • Located off loading dock at Science Lab Building • Key can be checked out at the Chemistry storeroom. • Enter through South East gate. Valve Location

  9. Liquid Nitrogen Tank • Do NOT touch any of the valves on the North side of the tank. • Do NOT enter through the North gate. DO NOT touch!

  10. Protective Clothing • Always wear thermal protective clothing when handling refrigerated/cryogenic liquids or solids. • It is required you wear a full face shield over safety glasses, loose fitting gauntlet gloves, long sleeve shirts, full-length trousers without cuffs, and fully enclosed shoes.

  11. Fill Hose • The liquid Nitrogen is released through this hose.

  12. Procedures:Step 1: Fill Hose • Insert and hold the fill hose into the appropriate container or into the funnel.

  13. Procedures:Step 2: Open/Close Valve • Open valve slowly to begin filling. • Close valve tightly after filling. Valve

  14. Safe Handling • Wear Personal Protective Equipment: • Face Guard • Gloves • Always use liquid Nitrogen in a well ventilated area. • Use a loose-fitting stopper or lid that allows venting of the boil off. • If using a funnel, use caution not to overfill the container.

  15. Safe HandlingContinued • Only transport liquid nitrogen in the freight elevator with no other occupants present. • Only use containers that have been designed specifically for cryogenic liquids. • Do not store in a confined space. • Do not store at temperatures above 125°F.

  16. References • Emergency Response Guide 2004 • Harvard University • Praxair • http://www.chem.uncc.edu/safety/NitrogenSafety.html • http://www-safety.deas.harvard.edu/services/nitrogen.html