IMDG危险品规范英文doc 15页Word格式文档下载.docx

1、Brief InstructionThere is a tremendous variety of dangerous cargoes being carried on seagoing ships, to some extent in very large quantities. Dangerous goods are mainly mineral oils and products of the chemical industry which may represent a danger for the crew, the ship and environment. This has be

2、en taken account by the IMO in the international Convention for the Safety of Life at Sea, SOLAS. The carriage of dangerous goods in general is dealt with in SOLAS Chapter VII, covering chemical tankers in Part B, gas carriers in Part C and the carriage of dangerous goods in packaged form or in soli

3、c form in bulk is contained in Part A.Part A of SOLAS Chapter VII contains general requirements covering mainly operational aspects and applies to all ships, including cargo shipes of less than 500 gross tons, carrying dangerous goods. Part A of SOLAS Chapter VII is the legal base for the “Internati

4、onal Maritime Dangerous Goods Code“ （IMDG Code） and the “Code of Safety Practice for Solid Bulk Cargoes“ （BC Code）. There codes contain the specific requirements with regard to packing, labelling , stowage, segregation and other operational aspects.In Regulation 2 of SOLAS Chapter VII, Part A danger

5、ous goods are classified according to their specific properties:Class 1 ExplosiveClass 2.1 Flammable GasesClass 2.2 Non-flammable GasesClass 2.3 Poisonous GasesClass 3.1/3.2 Flammable liquids with flash point of 23C and belowClass 3.3 Flammable liquids with flash point above 23C up to 61CClass 4.1 F

6、lammable solidsClass 4.2 Substances liable to spontaneous combustionClass 4.3 Substances, which, in contact with water, emit flammable gasesClass 5.1 Oxidizing substancesClass 5.2 Organic substancesClass 6.1 Toxic substancesClass 6.2 Infectious substancesClass 7 Radioactive materialsClass 8 Corrosiv

7、es （liquids and solid forms）Class 9 Miscellaneous dangerous substances and articlesFor the details of the classification of the dangerous goods, refer to IMGD Code Para.5 as attached.Dangerous substances in packaged form are to be shipped in approved packagings as specified in the IMDG code for each

8、 substance individually, including a limitation of the filling capacity. Common packagings are boxes, drums, pressure cylinders etc. These parcelled goods are either be stowed directly in the cargo hold or inside a freight container. Goods stowed in tank containers, bulk containers or big bags are c

9、onsidered packaged as well. Please note that bulk cargoes mean cargoes which are intended to be transported without any intermediate form of containment in bulk packagings or portable tanks.Stowage requirements specify, among other things, restrictions related to the distance to living quarters and

10、to engine room boundaries, or whether on deck or under deck stowage is permitted or stowage on passenger ships.Segregation is required for incompatible goods like substances, which stowed together, present a risk for undue hazards in case of leakage or spillage.Regulations and ProvisionSOLAS II-2, R

11、eg. 54 Specific requirements for ships carrying dangerous goodsThese regulations specify the required installations and equipment in the cargo spaces for the individual cargoesSOLAS VII, Part A Carriage of dangerous goods in packaged form or in solid form in bulk.Application of the Rules and classif

12、ication of the various goods. General information regarding packaging, marking, labelling, documents and stowage. IMDG Code International Maritime Dangerous Goods CodeSpecific provisions for each individual cargo with respect to packing, stowage and segregation duing the transport. To be onboard if

13、goods in packaged form are carried.BC Code Code of Safe Practice for Solid Bulk CargoesSpecific provisions for each individual cargo with respect to stowage and segregation during the transport. To be onboard if buldk cargopes are carried.INF Code Code for the safe carriage of irradiated nuclear fue

14、l, plutoniym and high-level radioactive wastes in flasks on board ships. INF 1, INF 2, INF-3 dependent on the total radioactive quantity. Class 7, not covered by SOLAS II-2, Reg. 54.As indicated in the list of classes some goods are dangerous on account of their features （e.g. explosive or poisonous

15、 products）. Other goods constitute a hazard during the transport if they get in touch with other materials and thereby a chemeical reaction is caused, e.g. development of ignitable or toxic gases after contact with water. Therefore,the cargo spaces concerned have to be provided with the fire protect

16、ion and safety systems dependent on the scheme of the carriage of dangerous goods as specifified on SOLAS Chapter II-2, Regualtion 54 in order to cope with dangerous situations which may evolve.It should be noted that a ship need not to comply with all the requirements indicated in the SOLAS II-2, R

17、egulation 54. The classes of dangerous goods which may be carried and possible restrictions are ascertained on the basis of the arrangements and equipment provided for each space and such stated in the “Document of Compliance for the Carriage of Dangerous Goods （Dangerous Goods Certificate）“.As atta

18、ched, our Rules Chapter 2, Section 12, The tables 12.7 and 12.8 are used to determine the requirements to be fulfilled for particular classes of dangerous goods to be carried in a particular type of cargo space.Specific Requirements for the Carriage of Dangerous GoodsGeneral information regarding th

19、e application of the Special Requirements of Regulation 54 of SOLAS II-2 according to the scope of dangerous goods to be carried.The scope of dangerous goods, which may be carried, depends on the vessels outfitting.A. Transport of Dangerous Goods （D.G.） in package formA minimum of such requirements

20、as detailed here below has to be met in case D.G. in packaged form shall be carried in a cargo hold:1. All cargo holds to be fitted with a fixed fire extinguishing system （conventional/container/bulk cargo spaces: CO2 system） special category spaces, open ro/ro spaces and alike: water spraying syste

21、m2. Immediate availability of water for fire fighting by remote start of the fire pumps from the wheelhouse3. Hydrants to be arranged such that any part of the empty cargo space can be reached with four jets of water simultaneously. Two of the jets shall be supplied via single length of hose each, t

22、wo may be supplied via two coupled hose lengths. This requirement applies also to the cargo weather deck designated for the stowage of D.G.4. Approved fire detection system for the cargo holds （in case of class 1 on weather deck also applicable to the cargo hold beneath）5. Four sets of chemical prot

23、ective clothing6. Two additional breathing apparatus with spare charges acc. to flag state requirements , but not less than two7. Additional dry powder fire extinguishers total 12 kg per hold （not required in container cargo holds, but also for weather deck stowage） With foregoing equipment the foll

24、owing may be carried in the cargo hold（s）:IMO ClassRestrictions1.4.Snone2.23.34.1except substances for which the IMDG code stipulates stowage in a mechanically ventilated space4.2stowage in a mechanically ventilated space5.16.1except liquids and except substances for which the IMDG code stipulates 8

25、except liquids with flash point 61C9Provided additional dry powder fire extinguishers of total 12 kg are available dedicated to the use in the cargo deck area all classes of D.G. may be carried on weather deck.8. For the carriage of flammable gases （class 2.1）, toxic gases （class 2.3）, substances of

26、 IMO class 4.3, liquids of class 6 and 8 with flash point 61C, but above 23C and for the carriage of those goods for which the IMDG code requires , the cargo hold is to be provided with mechanical exhaust ventilation giving 6 air changes per hour based on the empty hold. This applies also to goods o

27、f IMO classes 4.1, 4.2 and 5.1 if stowage in a mechanically ventilated space is stipulated in the IMDG code. The ventilation ducts shall be arranged such that approximately 1/3 of the air volume is removed from the upper and 2/3 lower part of the cargo hold. The ventilation may be reduced to two air

28、 changes per hour in case of container cargo spaces and if these goods are carried in closed freight containers.The inlet （if supply fans are provided） and outlet ventilation openings are to be fitted with wire mesh guards not exceeding 13mm mesh to prevent foreign objects from entering into the fan

29、 casing.9. With ventilation acc. to 8. and ex-proof electrical equipment of explosion group IIB, temperature class T4 and grade of protection IP 55, also the flammable gases （class 2.1） with the exception of Hydrogen and mixtures thereof may be carried in the hold. It should be noted that all electr

30、ical equipment coming into contact with hold atmosphere has to meet this requirement （lighting, fire detection system, ventilators etc.）. The carriage also of Hydrogen and mixtures thereof would require ex-proof installation of IIC T4. Lighting is not a requirement of the Rules nor SOLAS. Lighting o

31、r any other electrical equipment, unless required by the Regulations or in connection with the transport of D.G., may be isolated during the transport of goods requiring ex-proof electrical equipment.10. With ventilation according to 8., ex-proof installation according to 9. and an additional fixed bilge sys