3.2.1

explanations

as a rule, each row of table a of this chapter deals with the substance(s) or article(s) covered by a specific un number. however, when substances or articles belonging to the same un number have different chemical properties, physical properties and/or carriage conditions, several consecutive rows may be used for that un number.

each column of table a is dedicated to a specific subject as indicated in the explanatory notes below. the intersection of columns and rows (cell) contains information concerning the subject treated in that column, for the substance(s) or article(s) of that row:

the first four cells identify the substance(s) or article(s) belonging to that row (additional information in that respect may be given by the special provisions referred to in column (6);

the following cells give the applicable special provisions, either in the form of complete information or in coded form. the codes cross-refer to detailed information that is to be found in the part, chapter, section and/or sub-section indicated in the explanatory notes below. an empty cell means either that there is no special provision and that only the general requirements apply, or that the carriage restriction indicated in the explanatory notes is in force. when used in this table, an alphanumeric code starting with the letters "sp" designates a special provision of chapter 3.3.

the applicable general requirements are not referred to in the corresponding cells. the explanatory notes below indicate for every column the part(s), chapter(s), section(s) and/or sub-section(s) where these are to be found.

explanatory notes for each column:

column (1) "un no."

contains the un number:

of the dangerous substance or article if the substance or article has been assigned its own specific un number; or

of the generic or n.o.s. entry to which the dangerous substances or articles not mentioned by name shall be assigned in accordance with the criteria ("decision trees") of part 2.

column (2) "name and description"

contains, in upper case characters, the name of the substance or article, if the substance or article has been assigned its own specific un number, or of the generic or n.o.s. entry to which it has been assigned in accordance with the criteria ("decision trees") of part 2. this name shall be used as the proper shipping name or, when applicable, as part of the proper shipping name (see 3.1.2 for further details on the proper shipping name).

a descriptive text in lower case characters is added after the proper shipping name to clarify the scope of the entry if the classification and/or carriage conditions of the substance or article may be different under certain conditions.

column (3a) "class"

contains the number of the class, whose heading covers the dangerous substance or article. this class number is assigned in accordance with the procedures and criteria of part 2.

column (3b) "classification code"

contains the classification code of the dangerous substance or article.

for dangerous substances or articles of class 1, the code consists of a division number and compatibility group letter, which are assigned in accordance with the procedures and criteria of 2.2.1.1.4;

for dangerous substances or articles of class 2, the code consists of a number and hazardous property group, which are explained in 2.2.2.1.2 and 2.2.2.1.3;

for dangerous substances or articles of classes 3, 4.1, 4.2, 4.3, 5.1, 5.2, 6.1,

6.2 and 9, the codes are explained in 2.2.x.1.2 1;

for dangerous substances or articles of class 8, the codes are explained in 2.2.8.1.4.1;

dangerous substances or articles of class 7 do not have a classification code.

column (4) "packing group"

contains the packing group number(s) (i, ii or iii) assigned to the dangerous substance. these packing group numbers are assigned on the basis of the procedures and criteria of part 2. certain articles and substances are not assigned to packing groups.

column (5) "labels"

contains the model number of the labels/placards (see 5.2.2.2 and 5.3.1.7) that have to be affixed to packages, containers, tank-containers, portable tanks, megcs and vehicles. however, for substances or articles of class 7, 7x means label model no.7a, 7b or 7c as appropriate according to the category (see 5.1.5.3.4 and 5.2.2.1.11.1) or placard no. 7d (see 5.3.1.1.3 and 5.3.1.7.2).

the general provisions on labelling/placarding (e.g. number of labels, their location) are to be found in 5.2.2.1 for packages, and in 5.3.1, for containers, tank-containers, megcs, portable tanks and vehicles.

note: special provisions, indicated in column (6), may change the above labelling provisions.

column (6) "special provisions"

contains the numeric codes of special provisions that have to be met. these provisions concern a wide array of subjects, mainly connected with the contents of columns (1) to (5) (e.g. carriage prohibitions, exemptions from requirements, explanations concerning the classification of certain forms of the dangerous goods concerned and additional labelling or marking provisions), and are listed in chapter

3.3 in numerical order. if column (6) is empty, no special provisions apply to the contents of columns (1) to (5) for the dangerous goods concerned.

column (7a) "limited quantities"

provides the maximum quantity per inner packaging or article for carrying dangerous goods as limited quantities in accordance with chapter 3.4.

column (7b) "excepted quantities"

contains an alphanumeric code with the following meaning:

"e0" signifies that no exemption from the provisions of adr exists for the dangerous goods packed in excepted quantities;

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1 x = the class number of the dangerous substance or article, without dividing point if applicable.

all the other alphanumerical codes starting with the letter "e" signify that the provisions of adr are not applicable if the conditions indicated in chapter 3.5 are fulfilled.

column (8) "packing instructions"

contains the alphanumeric codes of the applicable packing instructions:

alphanumeric codes starting with the letter "p", which refers to packing instructions for packagings and receptacles (except ibcs and large packagings), or "r", which refers to packing instructions for light gauge metal packagings. these are listed in 4.1.4.1 in numerical order, and specify the packagings and receptacles that are authorized. they also indicate which of the general packing provisions of 4.1.1, 4.1.2 and 4.1.3, and which of the special packing provisions of 4.1.5, 4.1.6, 4.1.7, 4.1.8 and 4.1.9 have to be met. if column (8) does not contain a code starting with the letters "p" or "r", the dangerous goods concerned may not be carried in packagings;

alphanumeric codes starting with the letters "ibc" refer to packing instructions for ibcs. these are listed in 4.1.4.2 in numerical order, and specify the ibcs that are authorized. they also indicate which of the general packing provisions of 4.1.1, 4.1.2 and 4.1.3, and which of the special packing provisions of 4.1.5, 4.1.6, 4.1.7, 4.1.8 and 4.1.9 have to be met. if column (8) does not contain a code starting with the letters "ibc", the dangerous goods concerned may not be carried in ibcs;

alphanumeric codes starting with the letters "lp" refer to packing instructions for large packagings. these are listed in 4.1.4.3 in numerical order, and specify the large packagings that are authorized. they also indicate which of the general packing provisions of 4.1.1, 4.1.2 and 4.1.3, and which of the special packing provisions of 4.1.5, 4.1.6, 4.1.7, 4.1.8 and

4.1.9 have to be met. if column (8) does not contain a code starting with the letters "lp", the dangerous goods concerned cannot be carried in large packagings;

note: special packing provisions, indicated in column (9a), may change the above packing instructions.

column (9a) "special packing provisions"

contains the alphanumeric codes of the applicable special packing provisions:

alphanumeric codes starting with the letters "pp" or "rr" refer to special packing provisions for packagings and receptacles (except ibcs and large packagings) that have additionally to be met. these are to be found in 4.1.4.1, at the end of the relevant packing instruction (with the letter "p" or " r") referred to in column (8). if column (9a) does not contain a code starting with the letters "pp" or "rr", none of the special packing provisions listed at the end of the relevant packing instruction apply;

alphanumeric codes starting with the letter "b" or the letters "bb" refer to special packing provisions for ibcs that have additionally to be met. these are to be found in 4.1.4.2, at the end of the relevant packing instruction (with the letters "ibc") referred to in column (8). if column (9a) does not contain a code starting with the letter "b" or the letters "bb", none of the special packing provisions listed at the end of the relevant packing instruction apply;

alphanumeric codes starting with the letter "l" or the letters "ll" refer to special packing provisions for large packagings that have additionally to be met. these are to be found in 4.1.4.3, at the end of the relevant packing instruction (with the letters "lp") referred to in column (8). if column (9a) does not contain a code starting with the letter "l" or the letters "ll", none of the special packing provisions listed at the end of the relevant packing instruction apply.

column (9b) "mixed packing provisions"

contains the alphanumeric codes starting with the letters "mp" of the applicable mixed packing provisions. these are listed in 4.1.10 in numerical order. if column (9b) does not contain a code starting with the letters "mp", only the general requirements apply (see 4.1.1.5 and 4.1.1.6).

column (10) "portable tank and bulk container instructions"

contains an alphanumeric code assigned to a portable tank instruction, in accordance with 4.2.5.2.1 to 4.2.5.2.4 and 4.2.5.2.6. this portable tank instruction corresponds to the least stringent provisions that are acceptable for the carriage of the substance in portable tanks. the codes identifying the other portable tank instructions that are also permitted for the carriage of the substance are to be found in 4.2.5.2.5. if no code is given, carriage in portable tanks is not permitted unless a competent authority approval is granted as detailed in 6.7.1.3.

the general requirements for the design, construction, equipment, type approval, testing and marking of portable tanks are to be found in chapter 6.7. the general requirements for the use (e.g. filling) are to be found in 4.2.1 to 4.2.4.

the indication of a "(m)" means that the substance may be carried in un megcs.

note: special provisions, indicated in column (11), may change the above requirements.

may also contain alphanumeric codes starting with the letters "bk" referring to types of bulk containers described in chapter 6.11 which may be used for the carriage of bulk goods in accordance with 7.3.1.1 (a) and 7.3.2.

column (11) "portable tank and bulk container special provisions"

contains the alphanumeric codes of the portable tank special provisions that have additionally to be met. these codes, starting with the letters "tp" refer to special provisions for the construction or use of these portable tanks. they are to be found in 4.2.5.3.

note: if technically relevant, these special provisions are not only applicable to the portable tanks specified in column (10), but also to the portable tanks that may be used according to the table in 4.2.5.2.5.

column (12) "tank codes for adr tanks"

contains an alphanumeric code describing a tank type, in accordance with

4.3.3.1.1 (for gases of class 2) or 4.3.4.1.1 (for substances of classes 3 to 9). this tank type corresponds to the least stringent tank provisions that are acceptable for the carriage of the relevant substance in adr tanks. the codes describing the other permitted tank types are to be found in 4.3.3.1.2 (for gases of class 2) or 4.3.4.1.2 (for substances of classes 3 to 9). if no code is given, carriage in adr tanks is not permitted.

if in this column a tank code for solids (s) and for liquids (l) is indicated, this means that this substance may be offered for carriage in tanks in the solid or the liquid (molten) state. in general this provision is applicable to substances having melting points from 20 °c to 180 °c.

if for a solid, only a tank code for liquids (l) is indicated in this column, this means that this substance is only offered for carriage in tanks in the liquid (molten) state.

the general requirements for the construction, equipment, type approval, testing and marking that are not indicated in the tank code are to be found in 6.8.1, 6.8.2, 6.8.3 and 6.8.5. the general requirements for the use (e.g. maximum degree of filling, minimum test pressure) are to be found in 4.3.1 to 4.3.4.

the indication of a "(m)" after the tank code means that the substance can also be carried in battery-vehicles or megcs.

the indication of a (+) after the tank code means that the alternative use of the tanks is permitted only where this is specified in the certificate of type approval.

for fibre-reinforced plastic tanks, see 4.4.1 and chapter 6.9; for vacuum operated waste tanks, see 4.5.1 and chapter 6.10.

note: special provisions, indicated in column (13), may change the above requirements.

column (13) "special provisions for adr tanks"

contains the alphanumeric codes of the special provisions for adr tanks that have additionally to be met:

alphanumeric codes starting with the letters "tu" refer to special provisions for the use of these tanks. these are to be found in 4.3.5;

alphanumeric codes starting with the letters "tc" refer to special provisions for the construction of these tanks. these are to be found in 6.8.4 (a);

alphanumeric codes starting with the letters "te" refer to special provisions concerning the items of equipment of these tanks. these are to be found in

6.8.4 (b);

alphanumeric codes starting with the letters "ta" refer to special provisions for the type approval of these tanks. these are to be found in

6.8.4 (c);

alphanumeric codes starting with the letters "tt" refer to special provisions for the testing of these tanks. these are to be found in 6.8.4 (d);

alphanumeric codes starting with the letters "tm" refer to special provisions for the marking of these tanks. these are to be found in 6.8.4 (e).

note: if technically relevant, these special provisions are not only applicable to the tanks specified in column (12), but also to the tanks that may be used according to the hierarchies in 4.3.3.1.2 and 4.3.4.1.2.

column (14) "vehicle for tank carriage"

contains a code designating the vehicle (including the drawing vehicle of trailers or semi-trailers) (see 9.1.1) to be used for the carriage of the substance in tank in accordance with 7.4.2. the requirements concerning the construction and approval of vehicles are to be found in chapters 9.1, 9.2 and 9.7.

column (15) "transport category / (tunnel restriction code)"

contains at the top of the cell a figure indicating the transport category to which the substance or article is assigned for the purposes of exemption related to quantities carried per transport unit (see 1.1.3.6). when no transport category has been assigned, this is indicated by the mention "-".

contains at the bottom of the cell, between brackets, the tunnel restriction code that refers to the applicable restriction for the passage of vehicles carrying the substance or article through road tunnels. these are to be found in chapter 8.6. when no tunnel restriction code has been assigned, this is indicated by the mention "(-)".

column (16) "special provisions for carriage - packages"

contains the alphanumeric code(s), starting with letter "v", of the applicable special provisions (if any) for carriage in packages. these are listed in 7.2.4.

general provisions concerning the carriage in packages are to be found in chapters 7.1 and 7.2.

note: in addition, special provisions indicated in column (18), concerning loading, unloading and handling, shall be observed.

column (17) "special provisions for carriage - bulk"

contains the alphanumeric code(s), starting with letters "vc", as well as the alphanumeric code(s) starting with letters "ap", of the applicable provisions for carriage in bulk. these are listed in 7.3.3. if no special provision, identified by the code "vc" or a reference to a specific paragraph, explicitly authorizing this mode of carriage is indicated in this column, and no special provision, identified by the code "bk" or a reference to a specific paragraph, explicitly authorizing this mode of carriage is indicated in column (10), carriage in bulk is not permitted. general and additional provisions concerning carriage in bulk are to be found in chapters 7.1 and 7.3.

note: in addition, special provisions indicated in column (18), concerning loading, unloading and handling, shall be observed.

column (18) "special provisions for carriage – loading, unloading and handling"

contains the alphanumeric code(s), starting with letters "cv", of the applicable special provisions for loading, unloading and handling. these are listed in

7.5.11. if no code is given, only the general provisions apply (see 7.5.1 to 7.5.10).

column (19) "special provisions for carriage - operation"

contains the alphanumeric code(s), starting with letter "s", of the applicable special provisions for operation which are listed in chapter 8.5. these provisions shall be applied in addition to the requirements of chapters 8.1 to 8.4 but in the event of conflict with the requirements of chapters 8.1 to 8.4, the special provisions shall take precedence.

column (20) "hazard identification number"

contains a two or three figure number (preceded in certain cases by the letter "x") for substances and articles of classes 2 to 9, and for substances and articles of class 1, the classification code (see column (3b)). in the cases described in 5.3.2.1, this number shall appear in the upper half of the orange-coloured plates. the meaning of the hazard identification numbers is explained in 5.3.2.3.