Stanford Hazard Classes (10-1-96)

1. Main Hazards (the hazard that presents the most immediate danger during a sudden release):

1. Compressed Gases 7. Corrosives
2. Severe Poisons 8. Radioactives
3. Moderate Poisons 9. Biohazards
4. Water Reactives 10. Other Hazards
5. Oxidizers 11. Non Hazardous
6. Flammables

2. Additional Hazards (hazardous and regulatory characteristics of each chemical not defined by the Main Hazard; most chemicals have more than one significant hazard):

12. Slight Poison 27. Organic Peroxide
13. Pyrophoric (ignites with air contact) 28. Skin Irritant (non-corrosive)
14. Carcinogen (Cal OSHA) 29. Lachrymator (mucus membrane irritant; produces tears)
15. Suspect Carcinogen, Mutagen 30. undefined or Reproductive Hazard
16. Combustible Liquid 31. Stench
17. Halogenated Solvent 32. Sensitizer
18. Cryogenic Liquid 33. Hepatotoxin (liver toxin)
19. Acid 34. Nephrotoxin (kidney toxin)
20. Base (caustic) 35. Neurotoxin
21. undefined 36. Blood and Hemapoetic System Toxin
22. Explosive (D.O.T. definition) 37. Causes Lung Damage if Inhaled (non-corrosive)
23. Unstable with Age [All] 38. Causes Eye Damage on chemicals in this classification Contact should be dated when received, when opened, and at disposal].
24. High Voltage 39. Eyes, Skin, Lungs, and Mucous Membrane Damage on Contact
25. Lasers 40. Water-Reactive Corrosive
26. Piping of Hazardous Materials 41. Skin-Absorbable Poison

Additional Hazards (continued)

42. Detonation Hazard in Fire 56. AB 2588--Toxic HotConditions Spots AI
43. Requires Refrigeration 57. DHS Drinking WaterAction Levels
44. unassigned 58. AB1807 Toxic AirContaminants
45. unassigned 59. NESHAP Specific Chemicals
46. unassigned 60. D.O.T. Inhalation Hazard Chemicals
47. unassigned 61. Extremely Hazardous Waste (CA Title 22)
48. unassigned 62. Acutely Hazardous Material (40 CFR Part 355)
49. unassigned 63. unassigned
50. unassigned 64. unassigned
51. EPA list of priority 65. Prop. 65 Carcinogens pollutants
52. AB 1803 well 66. Prop. 65 Reproductive monitoring Chemicals Toxins
53. SARA section 313 67. Toxic Gas Ordinance Toxic Chemicals Regulated
54. MCL (Max. Contaminants 68. Toxic Gas Ordinance Levels) List of Contaminants Class II
55. AB 2588--Toxic Hot 69. Toxic Gas Ordinance Spots AII Class I

 


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