Hazard Classification of Class 5.2 Organic Peroxides

TM-38-250 Transportation of Hazardous Material on Military Fixed and Rotary Wing Craft Manual
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AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.3 47 11 DECEMBER 2001 A4.3.5. Hazard Classification of Class 5.2 Organic Peroxides. Class 5.2 organic peroxides are categorized into one of seven "types" in a system of generic proper shipping names. The generic PSN for the organic peroxide describes the physical state of the material (i.e., liquid or solid), provides an indication of controlled temperature requirements, and includes the "type" of the organic peroxide. The seven types of organic peroxides are described in attachment 1. Transport all Class 5.2 material under one of the generic proper shipping names listed in table A4.1 beginning with the words "ORGANIC PEROXIDE". Technical names are listed below each PSN in lower case letters. To determine the correct PSN: - Find the technical name in table A9.1 and select the UN identification number assigned to the technical name that best describes the item (in terms of concentration ranges, physical characteristics, etc). - Turn to the "ORGANIC PEROXIDE" listed in table A4.1. These entries constitute the "generic" organic peroxide proper shipping names. - Match the UN identification number for the technical name with a UN identification number associated with the generic PSN. - The generic PSN associated with organic peroxides will include the "type" under which the organic peroxide falls. Organic peroxide types are defined in attachment 1. A4.3.6. Hazard Classification of Fissile Materials. Except as provided in A3.3.7.9, classify each package of fissile materials as fissile class I, II, or III. Determine the numerical values for package assignments as fissile class I, the transport indexes for fissile class II packages, and the conveyance limitations for fissile class III shipments according to 10 CFR Part 71. - Fissile Class I. Packages may be transported in unlimited numbers, and in any arrangement, and require no nuclear criticality safety controls during transportation. A transport index is not assigned to fissile class I packages for the purpose of nuclear criticality safety control, although, the external radiation levels may require a transport index number. - Fissile Class II. Packages may be transported together in any arrangement, but in numbers that are not over an aggregate transport index of 50. For the purposes of nuclear criticality safety control, individual packages may have a transport index of not less than 0.1 and not more than 10. However, the external radiation levels may require a higher transport index number. These shipments require no nuclear criticality safety control by the shipper during transportation. - Fissile Class III. Shipments of packages of fissile materials that do not meet the requirements of fissile class I or fissile class II and are controlled in transit as prescribed in A3.3.7.8 by appropriate arrangements between the shipper and the carrier. A4.4. Determining Degree of Hazard (PG). For most material, the PG is assigned in column 5 of table A4.1. Packing groups I, II, and III indicate the degree of hazard associated with the materials and are used to identify the severity of UN specification performance tests associated with the packaging for the item. Poisonous by inhalation material are assigned hazard zones (see attachment 1) in table A4.1. If unknown, the PG or hazard zone may be determined according to this paragraph. Class 2, and 7 do not have packing groups. A4.4.1. Class 2 Hazard Zone. The hazard zone of a Class 2.3 material is given in column 7 of table A4.1. When column 7 of table A4.1 provides more than one hazard zone or is blank, determine the hazard zone from figure A4.2. There are no hazard zones for Class 2.1 and 2.2. Figure A4.2. Determination of Hazard Zone for Class 2.3. Hazard Zone Inhalation Toxicity (parts per million) A LC50 less than or equal to 200 ppm B LC50 greater than 200 ppm and less than or equal to 1000 ppm C LC50 greater than 1000 ppm and less than or equal to 3000 ppm D LC50 greater than 3000 ppm or less than or equal to 5000 ppm A4.4.2. Class 3 Packing Groups. When table A4.1 lists more than one PG for a material, or indicates that the PG is to be determined on the basis of the PG criteria for Class 3, determine the PG by using figure A4.4. To use figure A4.3, match the initial boiling point of the material to the flash point, and assign the corresponding PG. Flash points may be determined from the material safety data sheet, DoD 6050.5 Hazardous Material Information System, the National Fire Protection Guide, or markings on the package. For example, a Class 3 material with an initial boiling

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