understanding hazardous materials and hazard classification...classification. hazmat definition ......
TRANSCRIPT
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Understanding Hazardous Materials and Hazard
Classification
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Hazmat definition
Substance or material
Transported in commerce
Determined to pose unreasonable risk to health, safety and property
1a
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Hazmat definition
Hazardous substances
Hazardous wastes
Marine pollutants
1b
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Hazmat definition
Elevated temperature materials
Materials designated hazardous in 172.101
Materials meeting defining criteria in Part 173
1c
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Hazardous substances
Includes mixtures and solutions
Listed in Appendix A of HMT
Equals or exceeds the RQ in Appendix A
2a
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Hazardous substances
Concentration by weight equals or exceeds concentration corresponding to its RQ
Radionuclides conform to Paragraph 7 of Appendix A
2b
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Hazardous waste
Subject to the hazardous waste manifest requirements of EPA
40 CFR Part 262
3
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Marine pollutants
Listed in Appendix B of HMT
Solution or mixture equals or exceeds 10 percent by weight
Severe marine pollutant solution or mixture equals or exceeds 1 percent by weight
4
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Elevated temperature material
Liquid phase at or above 100 degrees C (212 degrees F)
Liquid phase with flash point at or above 37.8 degrees C (100 degrees F)
5a
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Elevated temperature material
Solid phase at or above 240 degrees C (464 degrees F)
5b
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Hazard classes
Class 1 – Explosives
Class 2 – Gases
Class 3 – Flammable or Combustible liquid
6a
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Hazard classes
Class 4 – Flammable solid
Class 5 – Oxidizer or Organic peroxide
Class 6 – Poison
6b
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Hazard classes
Class 7 – Radioactive
Class 8 – Corrosive
Class 9 – Miscellaneous
6c
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Class 1 Explosives
1.1 Mass explosion hazard
1.2 Projection hazard
1.3 Fire hazard
7a
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Class 1 Explosives
1.4 No significant blast hazard
1.5 Blasting agents
1.6 Detonating substances
7b
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Class 2 Gases
2.1 Flammable gas
2.2 Non-flammable gas
2.3 Poison gas
8
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Precedence list
1. Class 7
2. Division 2.3
3. Division 2.1
4. Division 2.2
9a
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Precedence list
5. Division 6.1, PG I, PIH only
6. Division 4.2 (Pyrophoric)
7. Division 4.1 (Self-reactive)
9b
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Precedence list
8. Class 3, Class 8, Division 4.1, Division 4.2, Division 4.3, Division 5.1, Division 6.1
9. Combustible liquids
10. Class 9
9c
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CriteriaClass 1 (Explosives)
Substance or article
Includes a device
Functions by explosion or chemical reaction
10a
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CriteriaClass 1 (Explosives)
Six divisions ––1.1 – Mass explosion hazard – affects
entire load instantaneously
–1.2 – Projection hazard – not mass explosion hazard
–1.3 – Fire hazard & minor blast/projection hazard
10b
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CriteriaClass 1 (Explosives)
–1.4 -- Minor explosion hazard confined to package
–1.5 – Insensitive explosives – mass explosion hazard
–1.6 –Extremely insensitive explosives –no mass explosion hazard
10c
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Class 2 (Gases)
Three divisions
2.1 – Flammable gas - Gas at 20 degrees C (68 degrees F) or less
– - 101.3 kPa (14.7 psi) of pressure
– - Is ignitable at 101.3 kPa (14.7 psi) when in a mixture of 13 percent or less by volume with air
– - Has a flammable range at 101.3 kPa (14.7 psi) with air of at least 12 percent
11a
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Class 2 (Gases)
2.2 – Non-flammable gas - In packaging exerts absolute pressure of 280 kPa (41 psia) or greater at 20 degrees C (68 degrees F)
- Does not meet the definition of 2.1 and 2.3
11b
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Class 2 (Gases)
2.3 – Poison gas - Gas at 20 degrees C (68 degrees) or less
– - Pressure of 101.3kPa (14.7 psi)
– - Poses a health hazard to humans in transportation
– - Presumed to be toxic to humans
11c
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Divisions defined by
Non-liquefied compressed gas – in a packaging is entirely gaseous at 20 degrees C (68 degrees F)
Liquefied compressed gas - partially liquid in a packaging at 20 degrees C (68 degrees F)
12a
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Divisions defined by
Compressed gas - in solution is non-liquefied compressed gas dissolved in solvent
Cryogenic liquid – refrigerated liquefied gas with boiling point below -90 degrees C (-130 degrees F)
12b
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Refrigerant gas
All non-poisonous refrigerant or dispersant gases and mixtures listed in 172.101, 173.304, 173.314, and 173.315
13
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Flammable range
Difference between minimum and maximum volume percentages of the material in air that form a flammable mixture
14
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Class 3 (Flammable liquid)
Liquid having flash point not more than 60 degrees C (140 degrees F)
15a
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Class 3 (Flammable liquid)
Any material in a liquid phase with flashpoint at or above 37.8 degrees C (100 degrees F) intentionally heated and transported at or above its flashpoint
15b
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Exceptions
Any liquid meeting one of the definitions of a Class 2
Any mixture having a component with a flash point of 60 degrees C (140 degrees F) or higher, that makes up at least 99 percent of the total volume, and not transported above its flash point
16a
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Exceptions
Any liquid with a flash point greater than 35 degrees C (95 degrees F) that does not sustain combustion
Any liquid with a flash point greater than 35 degrees C (95 degrees F) and a fire point greater than 100 degrees C (212 degrees F)
16b
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Exceptions
Any liquid with a flash point greater than 35 degrees C (95 degrees F) in a water-miscible solution with water content of more than 90 percent
16c
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Combustible liquid
Any liquid not meeting definition of any other hazard class
Flash point above 60 degrees C (140 degrees F) and below 93 degrees C (200 degrees F)
17a
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Combustible liquid
A flammable liquid with a flash point above 38 degrees C (100 degrees F) may be reclassed combustible
17b
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Class 4 (Flammable solid)
Three divisions
4.1 (Flammable solid)
–Desensitized explosives
–Self-reactive materials
–Readily combustible solids
18a
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Class 4 (Flammable solid)
4.2 (Spontaneously combustible)
–Pyrophoric materials
–Self-heating materials
18b
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Class 4 (Flammable solid)
4.3 (Dangerous when wet)
–When in contact with water –
– Is liable to become spontaneously flammable
–Gives off flammable or toxic gas
18c
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Class 5 (Oxidizers and Organic peroxide)
Two divisions
5.1 (Oxidizer)
–Causes or enhances combustion by yielding oxygen
19a
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Class 5 (Oxidizers and Organic peroxide)
5.2 (Organic peroxide)
–Contains oxygen
–May be considered a hydrogen peroxide derivative
19b
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Class 6 (Poison)
Two divisions
6.1 (Poison)
–Presumed toxic to humans
–Health hazard during transport
–Extreme irritation similar to tear gas
20a
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Class 6 (Poison)
6.2 (Infectious substance)
–Viable microorganism or its toxin
–May cause disease in humans or animals
20b
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Class 7 (Radioactive)
Specific gravity greater than 0.002 microcuries per gram
21
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Class 8 (Corrosive)
Causes full thickness destruction of human skin
Severe corrosion rate on steel or aluminum
22
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Class 9 (Miscellaneous)
Hazmat that does not meet definition of any other hazard class
23
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ORM-D (Other regulated materials)
Consumer commodity
Limited hazard in transport
Must have exceptions in HMT
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Limited quantities exceptions
Exceptions
–Listed by class in Part 173 of HMR
25
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Limited quantity
Maximum amount of hazmat that has a specific labeling or packaging exception
26
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Limited quantities (most hazmat)
Excepted from labeling requirements
Excepted from specification packaging requirements
Excepted from placarding requirements
27a
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Limited quantities (most hazmat)
Must meet Subpart B packaging requirements
May not exceed 30 kg (66 lbs) gross weight each package
27b
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Limited quantities (Compressed gases)
Reference 173.306 in the HMT
Excepted from labeling unless specified
Excepted from specification packaging unless specified
28a
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Limited quantities (Compressed gases)
Excepted from placarding requirements
Excepted from Part 177 requirements, except shipping paper requirements (177.817)
May not exceed 30 kg (66 lbs) gross weight each package
28b
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Additional limited quantities
Addressed in 173.306
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Limited quantities (Radioactive)
Material package limits specified and conforming with 173.421 - .425
30
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ORM-Ds
Consumer commodity
Material packaged and distributed in a form suitable for retail sales
Includes drugs and/or medicines
31a
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ORM-Ds
Limited quantity may be renamed consumer commodity
Same exceptions as limited quantities
Listed by class in Part 173 of HMR
31b
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Other exceptionsClass 3 (Flammable)
Alcoholic beverages - 173.150(d)
Aqueous solutions of alcohol -173.150(e)
Combustible liquids – 173.150(f)
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Other exceptions Class 8 (Corrosive)
Corrosive to aluminum and/or steel –173.154(d)
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