Dangerous Goods Classes 1-9
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Dangerous Goods Classes 1-9
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- 21. M. Tayfour 21 Class 1Class 1 ExplosiveExplosive
- 22. M. Tayfour 22 Class 1Class 1 ExplosiveExplosive
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- 29. 3 Examples: • Gasoline • Camping fuel • Ethanol, Methanol, Isopropanol • Acetone • Paint thinner
- 31. 44 Three DivisionsThree Divisions 4.1 - Flammable Solids4.1 - Flammable Solids 4.2 - Spontaneously Combustible4.2 - Spontaneously Combustible 4.3 - Dangerous When Wet4.3 - Dangerous When Wet ICAO TI Part 2, Chap 4
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- 35. 5 Two DivisionsTwo Divisions 5.1 – Oxidizing substances5.1 – Oxidizing substances 5.2 - Organic Peroxides5.2 - Organic Peroxides
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- 39. Class 6Class 6 • M. Tayfour 39
- 40. 6 Two Divisions: • 6.1 Examples: Arsenic, Pesticides • 6.2 Examples: HIV, Hepatitis ICAO TI Part 2, Chap 6
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- 43. 7 Examples: • Radioactive medicines • Isotopes used in research (Carbon-14, etc.) • X-ray machines and other equipment with radioactive sources ICAO TI Part 2, Chap 7
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- 57. 8 Examples: • Batteries • Sulphuric Acid • Bleach • Paint stripper • Drain cleaner ICAO TI Part 2, Chap 8
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- 59. 9 Examples: • Dry Ice • Engines & vehicles • Lithium batteries
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- 63. M. Tayfour 63 99 Magnetized MaterialMagnetized Material Cargo IMP CodeCargo IMP Code MAGMAG Note : This class has no sub-divisionsNote : This class has no sub-divisions Class 9Class 9 Miscellaneous DGMiscellaneous DG Handling Label
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- 65. M. Tayfour 65 Cargo Aircraft OnlyCargo Aircraft Only Handling Label
- 66. M. Tayfour 66 Cryogenic LiquidCryogenic Liquid Handling LabelHandling Label Handling LabelHandling Label
- 67. M. Tayfour 67 (This Way Up)(This Way Up) Handling Label
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Editor's Notes
- Read through the classes/division but do not go in-depth. Explain that the Number of the hazard class is not a ranking of how dangerous it is. For instance, Class 3 is not necessarily more dangerous than class 7.
- Go to paragraph 2.4 after the list of hazard classes. Packing groups are used to rank how dangerous an item is within its hazard class/division. Not all hazard classes/divisions have packing groups. (Classes 1, 2, 5.2, 6.2, 7, and self-reactive of Div 4.1 do not.) Packing Group I is the most hazardous, Packing Group 3 is the least hazardous—but is still a dangerous good. The packing group is used for just that—packing. It will determine how stringent the packaging must be and will dictate the allowable net quantity in the packagings. It will even help determine whether or not a dangerous good is allowed on passenger aircraft or cargo aircraft.
- Go to Part 2 Chapter 3 Ask if anyone has noticed that, in this Part, the chapter number coincides with the hazard class. Chapter 3 = Class 3, just like Chapter 1 was about Class1, and Chapter 2 was about Class 2. This make it easy to find information about a specific hazard class.
- Explain that Class 4 is traditionally called “Flammable Solids” but it contains a variety of materials and some are not necessarily “Solids” –even when they’re in division 4.1. Look at the definitions for the three divisions in Paragraph 4.1.1 Matches are a common div. 4.1 dangerous good. Spontaneously combustible goods are those that may ignite without a traditional ignition source such as flames or sparks. Dangerous when wet materials may emit flammable gases or even explode when in contact with water (not all liquids)
- Div. 5.1 Oxidizers give off oxygen so they create a condition where a fire could easily start. Items that normally don’t burn rapidly may burn easily and quickly when there’s a lot of oxygen present. Example: a spark normally would not ignite a piece of cardboard but in an oxygen-rich atmosphere it easily could. Div. 5.2 Organic Peroxides are similar to oxidizers except they can be unstable—and can burn things or even explode in a worst-case scenario. Some organic peroxides are more unstable than others. Hydrogen peroxide sold is stores (3% solution) is not in not a dangerous good. 50% hydrogen peroxide however is very dangerous and forbidden on aircraft. (Hydrogen peroxide becomes regulated at 8%)
- Div 6.1 covers Toxic (a.k.a. “poisonous”) solid and liquids. Toxic gases would be in Div. 2.3. Look at the definition in 6; 6.1 a) There are three entries for toxics: swallowed/oral, inhalation, and skin/dermal contact. Now look at Table 2-8 for determining PG for Div. 6.1. It’s broken down by Oral, Dermal, and Inhalation toxicity. A material only has to meet the criteria of one of these categories to be classified as toxic. When a material meets the criteria of different PG’s (Example: PG II for Oral, but PG III for Dermal) the lowest PG is used. Give students some sample LD 50 and LC 50 numbers and have them assign the PG. Example: A substance with an Oral of 12 (PG II) and a Dermal of 12 (PG I) and an Inhalation of 12 (not toxic) would be in PG I based on the lowest PG. “LD50” means the lethal dose that will kill 50% of the test population (albino rats for oral, albino rabbits for dermal), “LC50” means the lethal concentration of in the air that will kill 50% of the test population (albino rats) –this is explained in paragraph 6.2.1 CAN BE A SENSITIVE SUBJECT Got to 6.3.1 for Infectious Substances, Div. 6.2 Explain that infectious substances cause serious disease in humans or animals. If it can’t cause disease (inactivated culture in a vaccine, clean blood) then it’s not an infectious substance. Most specimens sent by air (blood, urine, etc.) are probably not infectious. The difference between “infectious substances” and “diagnostic specimens” cannot be covered in a brief seminar. Questions on this subject can be handled at break or after class.
- Class 7, radioactive materials, will not be covered in this seminar. Not enough time to cover this technical subject.
- Go to Chapter 8 and look at paragraph 8.1. Corrosives can damage human skin and/or other objects such as metals. Wet batteries are a common Class 8 material shipped by air. The “PH scale” is not used for classifying corrosives for transportation.
- Go to Chapter 9 Look at magnetized materials, “aviation regulated solid or liquid”, and the examples given at the end of the chapter. Some Class 9 goods have Packing Groups (Dry Ice, PG III) but most do not.