AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.34711 DECEMBER 2001A4.3.5. Hazard Classification of Class 5.2 Organic Peroxides. Class 5.2 organic peroxides are categorized intoone of seven "types" in a system of generic proper shipping names. The generic PSN for the organic peroxidedescribes the physical state of the material (i.e., liquid or solid), provides an indication of controlled temperaturerequirements, and includes the "type" of the organic peroxide. The seven types of organic peroxides are described inattachment 1. Transport all Class 5.2 material under one of the generic proper shipping names listed in table A4.1beginning with the words "ORGANIC PEROXIDE". Technical names are listed below each PSN in lower caseletters. To determine the correct PSN:-Find the technical name in table A9.1 and select the UN identification number assigned to the technicalname 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" organicperoxide proper shipping names.-Match the UN identification number for the technical name with a UN identification number associatedwith the generic PSN.-The generic PSN associated with organic peroxides will include the "type" under which the organicperoxide 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 offissile materials as fissile class I, II, or III. Determine the numerical values for package assignments as fissile classI, the transport indexes for fissile class II packages, and the conveyance limitations for fissile class III shipmentsaccording to 10 CFR Part 71.-Fissile Class I. Packages may be transported in unlimited numbers, and in any arrangement, and requireno nuclear criticality safety controls during transportation. A transport index is not assigned to fissile classI packages for the purpose of nuclear criticality safety control, although, the external radiation levels mayrequire a transport index number.-Fissile Class II. Packages may be transported together in any arrangement, but in numbers that are notover an aggregate transport index of 50. For the purposes of nuclear criticality safety control, individualpackages may have a transport index of not less than 0.1 and not more than 10. However, the externalradiation levels may require a higher transport index number. These shipments require no nuclearcriticality safety control by the shipper during transportation.-Fissile Class III. Shipments of packages of fissile materials that do not meet the requirements of fissileclass I or fissile class II and are controlled in transit as prescribed in A3.3.7.8 by appropriate arrangementsbetween 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 theseverity of UN specification performance tests associated with the packaging for the item. Poisonous by inhalationmaterial are assigned hazard zones (see attachment 1) in table A4.1. If unknown, the PG or hazard zone may bedetermined 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. Whencolumn 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 ZoneInhalation Toxicity (parts per million)ALC50 less than or equal to 200 ppmBLC50 greater than 200 ppm and less than or equal to 1000 ppmCLC50 greater than 1000 ppm and less than or equal to 3000 ppmDLC50 greater than 3000 ppm or less than or equal to 5000 ppmA4.4.2. Class 3 Packing Groups. When table A4.1 lists more than one PG for a material, or indicates that the PGis to be determined on the basis of the PG criteria for Class 3, determine the PG by using figure A4.4. To use figureA4.3, match the initial boiling point of the material to the flash point, and assign the corresponding PG. Flash pointsmay be determined from the material safety data sheet, DoD 6050.5 Hazardous Material Information System, theNational Fire Protection Guide, or markings on the package. For example, a Class 3 material with an initial boiling
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