Dangerous goods - substances, materials and products that have properties, the manifestation of which during transportation can cause an explosion and (or) fire, lead to death, illness, injury, poisoning, exposure or burns to people and (or) animals, as well as cause damage structures, vehicles, other objects of transportation and (or) harm the environment.
Transportation of dangerous goods - a set of organizational and technological operations for the movement of dangerous goods by rail, road, water, air and other modes of transport or a combination of these modes of transport.
At the initiative of the United Nations was createdADREuropean agreement on the international carriage of dangerous goods by road,it operates on the territory of all EU countries, as well as in Kazakhstan, Azerbaijan, Morocco. In Russia, a similar one is calledADR. In addition to ADR, the transport of dangerous goods is also regulated in accordance with the Interim Instruction "On the Transport of Dangerous Goods by Road" of the Ministry of Transport.
In addition to this agreement, the following agreements for the transport of dangerous goods are in force in Europe:
IMDG CODE (International Maritime Dangerous Goods Code)- International code for the carriage of dangerous goods by sea (MK RID).
ICAO-TI (Technical Instructions for The Safe Transport of Dangerous Goods by AIR)- instructions for the carriage of dangerous goods by air, ICAO document 9284.
RID (International Regulations Concerning the Carriage of Dangerous Goods by Rail)- an agreement on the carriage of dangerous goods by rail.
Dangerous goods are classified into classes based on the UN Model Regulations and Recommendations on the Transport of Dangerous Goods, and according to the hazardous properties of the goods.
Dangerous goods are also divided into classes and subclasses, according to GOST 19433-88 and RID MK (International Code of Maritime Transportation of Dangerous Goods). Their classification (assignment to a class, subclass, category and group) is made depending on the type of hazard. Types of hazards are classified according to the following criteria.Explosiveness, Flammability, Toxicity (toxicity), Causticity (corrosivity), Radioactivity, Oxidation (combustion-promoting properties)
According to ADR, all dangerous goods must have a certain packing group. The packing group characterizes the degree of danger of the cargo being transported. They are divided into three groups:
I - very dangerous cargo.
II is just a dangerous cargo.
III - slightly dangerous goods.
The hazard feature of class 3 is the ability to evaporate. Closed packaging eliminates the formation and leakage of vapors. Class 3 may have one main hazard and a maximum of 2 subsidiary hazards.
Class 1. Main danger.
Class 2. Main danger + toxicity.
Class 3. Main danger + corrosiveness.
Class 4. Main danger + toxicity + corrosiveness.
Class 4.1 - packing group - II or III. Approximately 5% of these substances have an additional hazard - thermal instability - the possibility of an explosion (sulfur, cellulose).
Class 4.2 - packing group - I,II,III.
Class 4.3 - packing group - I,II,III.
Class 5.1 - packing group - I,II,III (mineral fertilizers, hydrogen peroxide).
Class 5.2 - no packaging groups (raw materials from chemical plants).
Class 6.1 - packing groups - I,II,III. It has many additional hazards (hydrocyanic acid, arsenic, substances containing mercury, etc.).
Class 6.2 - no packing groups.
Class 8 - packing groups - I,II,III. Has many additional dangers.
Class 9 - packing groups - II, III. (asbestos dust is a carcinogen, substances during combustion of which emit dioxins, also carcinogens, do not decompose for 20 years).
The peculiarity of class 2 is that it has no main hazard and no packing groups. It has the following special dangerous properties and their special designations:
A - suffocating - create a lack of oxygen for breathing in enclosed spaces (inert gases).
O - oxidizing, that is, contributing to combustion (oxygen).
F - flammability (propane).
T - poisonous.
Then two or more dangerous properties at the same time.
TF - poisonous + flammable.
TC - poisonous + caustic (corrosive).
TO - poisonous + oxidizing.
TFC - poisonous + flammable + caustic.
TOC - poisonous + oxidizing (burning) + caustic (corrosive).
The main regulatory documents for the carriage of dangerous goods by sea are:
International code for the carriage of dangerous goods by sea (IC RID).
International Convention for the Prevention of Pollution from Ships (MARPOL 73/78).
International Convention for the Safety of Life at Sea (SOLAS 74).
Normative acts of individual states.
On the basis of federal regulations, rules and instructions for the handling of dangerous goods have been developed and approved, which clearly regulate all procedures for control, safe transportation during multimodal transportation of goods, storage and transshipment in seaports. According to Russian laws, ships that have documents in accordance with the Rules for the Maritime Transportation of Dangerous Goods (MOPOG Rules) are allowed to transport dangerous goods.
When developing a route and calculating the cost of transportation, it is important to take into account the need for additional securing of cargo, carrying out loading and unloading operations with extreme caution and the possibility of providing special equipment.
The movement of dangerous goods by rail is regulated by the Agreement on International Cargo Transport by Rail (SMGS), the Convention on International Carriage by Rail (COTIF), the Rules for the International Carriage of Goods by Rail (RID), regulations of individual states and commonwealths.
There are the following features of the transportation of dangerous goods: a vehicle for the transportation of dangerous goods must be ordered in advance (usually 2-3 business days from the expected date of transportation); for the transportation of dangerous goods, it is necessary to prepare emergency cards, which are compiled on the basis of the Substance Passport, as well as route sheets, which indicate the routes for the transportation of dangerous goods.
The driver must strictly adhere to the routes indicated in the route sheet; it is necessary to prepare accompanying documents for the transportation of dangerous goods: certificates, substance passport, TTN, invoices. As a rule, it takes 3-5 days to issue and agree on the route for the transportation of dangerous goods; when transporting dangerous goods, it is necessary to observe the speed limit, therefore, high-speed transportation of ADR cargo is not allowed; some groups of dangerous goods are allowed to be transported together; during loading, unloading, as well as during the transportation of dangerous goods, the driver is a responsible person, and therefore he has the right not to accept the ADR cargo for transportation if the accompanying documentation is drawn up incorrectly or with errors, the rules for the transportation of dangerous goods are not followed, damaged or the container is deformed.
Hazard signs are applied: on packages having the shape of a parallelepiped (including containers and packages), on the side, end and top surfaces: on barrels - on one of the bottoms and on the shell from two opposite sides; on bags - in the upper part at the seam on both sides; on bales and bales - on the end and side surfaces.
The bill of lading must be written in the official (state) language of the consignor. If this language is not English, French, German, then additionally in one of these languages.
When recording the name of the dangerous goods being transported on the consignment note, the UN… (or ANO…) identification number (for example, UN 1256) is indicated first.
The full name of the dangerous goods is then recorded (eg nitric acid).
Then the main hazard class is indicated (the number of the main hazard sign is called) and, if any, the subsidiary hazard class (in brackets) (the number of the subsidiary hazard sign is called) - 8 (6.1), and the packing group, if any, is indicated - I.
Example of a complete entry: UN 1256, nitric acid, 8 (6.1), I.
Packing form, quantity and weight are written in words, for example: UN 1256, nitric acid, 3, III (drums, 10 pieces, 2000 kg).
Empty and uncleaned packages - examples:
Empty barrels, 3 (6.1).
Empty tanker, last load UN 1230, methanol, 3 (6.1), II.
Empty tank truck, last load UN 1203, gasoline, 3, II.
These entries can be made by the driver himself at any place in the copy of the consignment note of the last load. These entries are required.