2.1.3.5.3

If the hazard characteristics of the substance, solution or mixture fall within more than one class or group of substances listed below then the substance, solution or mixture shall be classified in the class or group of substances corresponding to the major hazard on the basis of the following order of precedence:
(a) Material of Class 7 (apart from radioactive material in excepted packages for which, except for UN 3507 URANIUM HEXAFLUORIDE, RADIOACTIVE MATERIAL, EXCEPTED PACKAGE, special provision 290 of Chapter 3.3 applies , where the other hazardous properties take precedence);

(b)   Substances of Class 1;
(c)   Substances of Class 2;
(d)   Liquid desensitized explosives of Class 3;
(e)   Self-reactive substances and solid desensitized explosives of Class 4.1;
(f)   Pyrophoric substances of Class 4.2;
(g)   Substances of Class 5.2;
(h)   Substances of Class 6.1 meeting the inhalation toxicity criteria of packing group I (Substances meeting the classification criteria of Class 8 and having an inhalation toxicity of dust and mist (LC50) in the range of Packing group I and a toxicity through oral ingestion or dermal contact only in the range of Packing group III or less, shall be allocated to Class 8);
(i)   Infectious substances of Class 6.2.

2.1.3.5.4

If the hazard characteristics of the substance fall within more than one class or group of substances not listed in 2.1.3.5.3 above, the substance shall be classified in accordance with the same procedure but the relevant class shall be selected according to the precedence of hazards table in 2.1.3.10.

2.1.3.5.5

If the substance to be carried is a waste, with a composition that is not precisely known, its assignment to a UN number and packing group in accordance with 2.1.3.5.2 may be based on the consignor’s knowledge of the waste, including all available technical and safety data as requested by safety and environmental legislation in force2.
In case of doubt, the highest danger level shall be taken.

If however, on the basis of the knowledge of the composition of the waste and the physical and chemical properties of the identified components, it is possible to demonstrate that the properties of the waste do not correspond to the properties of the packing group I level, the waste may be classified by default in the most appropriate n.o.s. entry of packing group II. However, if it is known that the waste possesses only environmentally hazardous properties, it may be assigned to packing group III under UN Nos. 3077 or 3082.

This procedure may not be used for wastes containing substances mentioned in 2.1.3.5.3, substances of Class 4.3, substances of the case mentioned in 2.1.3.7 or substances which are not accepted for carriage in accordance with 2.2.x.2.

2.1.3.6

The most specific applicable collective entry (see 2.1.2.5) shall always be used, i.e. a general n.o.s. entry shall only be used if a generic entry or a specific n.o.s. entry cannot be used.

2.1.3.7

Solutions and mixtures of oxidizing substances or substances with an oxidizing subsidiary hazard may have explosive properties. In such a case they are not to be accepted for carriage unless they meet the requirements for Class 1. For solid ammonium nitrate based fertilizers, see also 2.2.51.2.2, thirteenth and fourteenth indent and Manual of Tests and Criteria, Part III, Section 39.

2.1.3.8

Substances of classes 1 to 6.2, 8 and 9, other than those assigned to UN Nos. 3077 and 3082, meeting the criteria of 2.2.9.1.10 are additionally to their hazards of classes 1 to 6.2, 8 and 9 considered to be environmentally hazardous substances. Other substances meeting the criteria of no other class, but those of 2.2.9.1.10 are to be assigned to UN Nos. 3077 and 3082 as appropriate.

2.1.3.9

Wastes that do not meet the criteria for classification in classes 1 to 9 but are covered by the Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal may be carried under UN Nos. 3077 or 3082.

_______________________________
2 Such legislation is for instance the Commission Decision 2000/532/EC of 3 May 2000 replacing Decision 94/3/EC establishing a list of wastes pursuant to Article 1(a) of Council Directive 75/442/EEC on waste and Council Decision 94/904/EC establishing a list of hazardous wastes pursuant to Article 1(4) of Council Directive 91/689/EEC on hazardous wastes (Official Journal of the European Communities No. L 226 of 6 September 2000, page 3), as amended; and Directive 2008/98/EC of the European Parliament and of the Council of 19 November 2008 on waste and repealing certain Directives (Official Journal of the European Union No. L312 of 22 November 2008, pages 3-30), as amended.

2.1.3.10

Table of precedence of hazards

Class and packing group

4.1, II

4.1, III

4.2, II

4.2, III

4.3, I

4.3, II

4.3, III

5.1, I

5.1, II

5.1, III

6.1, I DERMAL

6.1, I ORAL

6.1, II

6.1, III

8, I

8, II

8, III

3, I

SOL LIQ

4.1 3, I

SOL LIQ

4.1 3, I

SOL LIQ

4.2 3, I

SOL LIQ

4.2 3, I

4.3, I

SOL LIQ 5.1, I 3, I

SOL LIQ

5.1, I 3, I

3, I

3, II

SOL LIQ

4.1 3, II

SOL LIQ

4.1 3, II

SOL LIQ

4.2 3, II

SOL LIQ

4.2 3, II

4.3, I

4.3, II

SOL LIQ 5.1, I 3, I

SOL LIQ 5.1, II 3, II

3, I

3, II

8, I

3, II

3, III

SOL LIQ

4.1 3, II

SOL LIQ

4.1 3, III

SOL LIQ

4.2 3, II

SOL LIQ

4.2 3, III

4.3, I

4.3, II

4.3, III

SOL LIQ

5.1, I 3, I

SOL LIQ 5.1, II 3, II

SOL LIQ 5.1, III 3, III

6.1, I

6.1,

III a

8, I

8, II

3, III

4.1, II

4.2, II

4.3, I

4.3, II

5.1, I

4.1, II

6.1, I

SOL 4.1, II

LIQ 6.1, II

SOL 4.1, II

LIQ 6.1, II

8, I

SOL LIQ 4.1, II 8, II

SOL LIQ

4.1, II 8, II

4.1, II

4.1, III

4.2, II

4.2, III

4.3, I

4.3, II

4.3, III

5.1, I

4.1, II

4.1, III

6.1, I

6.1, II

SOL 4.1, III

LIQ 6.1, III

8, I

8, II

SOL LIQ

4.1, III 8, III

4.1, III

4.2, II

4.3, I

4.3, II

5.1, I

4.2, II

6.1, I

4.2, II

8, I

4.2, II

4.2, III

4.3, I

4.3, II

4.3, III

5.1, I

5.1, II

4.2, III

6.1, I

6.1, II

4.2, III

8, I

8, II

4.2, III

4.3, I

5.1, I

4.3, I

6.1, I

4.3, I

4.3, II

5.1, I

4.3, II

6.1, I

4.3, I

4.3, II

8, I

4.3, II

4.3, III

5.1, I

5.1, II

4.3, III

6.1, I

6.1, II

4.3, III

8, I

8, II

4.3, III

5.1, I

5.1, II

6.1, I

5.1, I

5.1, II

8, I

5.1, II

5.1, III

6.1, I

6.1, II

5.1, III

8, I

8, II

5.1, III

6.1, I DERMAL

SOL LIQ 6.1, I 8, I

6.1, I

6.1, I ORAL

SOL LIQ 6.1, I 8, I

6.1, I

6.1, II INHAL

SOL LIQ 6.1, I 8, I

6.1, II

6.1, II DERMAL

SOL LIQ 6.1, I 8, I

SOL LIQ 6.1, II 8, II

6.1, II

6.1, II ORAL

SOL =

LIQ =

DERMAL =

ORAL =

INHAL =

a Class 6.1 for pesticides

Solid substances and mixtures

Liquid substances, mixtures and solutions Dermal toxicity

Oral toxicity Inhalation toxicity

8.1

SOL LIQ 6.1, II 8, II

6.1, II

6.1, III

8, I

8, II

8, III

6.1, III

8, I

8, II

8, III

NOTE 1: Examples to explain the use of the table

Classification of a single substance

Description of the substance to be classified:

An amine not mentioned by name meeting the criteria for Class 3, packing group II as well as those for Class 8, packing group I.

Procedure:

The intersection of line 3 II with column 8 I gives 8 I.

This amine has therefore to be classified in Class 8 under:

UN No. 2734 AMINES LIQUID, CORROSIVE, FLAMMABLE, N.O.S. or UN No. 2734 POLYAMINES, LIQUID, CORROSIVE, FLAMMABLE, N.O.S.

packing group I

Classification of a mixture

Description of the mixture to be classified:

Mixture consisting of a flammable liquid classified in Class 3, packing group III, a toxic substance in Class 6.1, packing group II and a corrosive substance in Class 8, packing group I.

Procedure:

The intersection of line 3 III with column 6.1 II gives 6.1 II. The intersection of line 6.1 II with column 8 I gives 8 I LIQ.

This mixture not further defined has therefore to be classified in Class 8 under: UN No. 2922 CORROSIVE LIQUID, TOXIC, N.O.S. packing group I.

NOTE 2: Examples for the classification of mixtures and solutions under a class and a packing group:

A phenol solution of Class 6.1, (II), in benzene of Class 3, (II) is to be classified in Class 3, (II); this solution is to be classified under UN No. 1992 FLAMMABLE LIQUID, TOXIC, N.O.S., Class 3, (II), by virtue of the toxicity of the phenol.

A solid mixture of sodium arsenate of Class 6.1, (II) and sodium hydroxide of Class 8, (II) is to be classified under UN No. 3290 TOXIC SOLID, CORROSIVE, INORGANIC, N.O.S., in Class 6.1 (II).

A solution of crude or refined naphthalene of Class 4.1, (III) in petrol of Class 3, (II), is to be classified under UN No. 3295 HYDROCARBONS, LIQUID, N.O.S. in Class 3, (II).

A mixture of hydrocarbons of Class 3, (III), and of polychlorinated biphenyls (PCB) of Class 9, (II), is to be classified under UN No. 2315 POLYCHLORINATED BIPHENYLS LIQUID or UN No. 3432 POLYCHLORINATED BIPHENYLS SOLID in Class 9, (II).

A mixture of propyleneimine of Class 3, and polychlorinated biphenyls (PCB) of Class 9, (II), is to be classified under UN No. 1921 PROPYLENEIMINE, INHIBITED in Class 3.

2.1.4

Classification of samplesof samples

2.1.4.1

When the class of a substance is uncertain and it is being carried for further testing, a tentative class, proper shipping name and UN number shall be assigned on the basis of the consignor's knowledge of the substance and application of:

(a) the classification criteria of Chapter 2.2; and

(b) the requirements of this Chapter.

The most severe packing group possible for the proper shipping name chosen shall be used.

Where this provision is used the proper shipping name shall be supplemented with the word "SAMPLE" (e.g., "FLAMMABLE LIQUID, N.O.S., SAMPLE"). In certain instances, where a specific proper shipping name is provided for a sample of a substance considered to meet certain classification criteria (e.g., GAS SAMPLE, NON-PRESSURIZED, FLAMMABLE, UN No. 3167) that proper shipping name shall be used. When an N.O.S. entry is used to carry the sample, the proper shipping name need not be supplemented with the technical name as required by special provision 274 of Chapter 3.3.

2.1.4.2

Samples of the substance shall be carried in accordance with the requirements applicable to the tentative assigned proper shipping name provided:

(a) The substance is not considered to be a substance not accepted for carriage by sub-sections
2.2.x.2 of Chapter 2.2 or by Chapter 3.2;

(b) The substance is not considered to meet the criteria for Class 1 or considered to be an infectious substance or a radioactive material;

(c) The substance is in compliance with 2.2.41.1.15 or 2.2.52.1.9 if it is a self-reactive substance or an organic peroxide, respectively;

(d) The sample is carried in a combination packaging with a net mass per package not exceeding
2.5 kg; and

(e) The sample is not packed together with other goods.

2.1.4.3

Samples of energetic materials for testing purposes

2.1.4.3.1

Samples of organic substances carrying functional groups listed in tables A6.1 and/or A6.3 in Appendix 6 (Screening Procedures) of the Manual of Tests and Criteria may be carried under UN No. 3224 (self-reactive solid type C) or UN No. 3223 (self-reactive liquid type C), as applicable, of Class
4.1 provided that:

(a) The samples do not contain any:

- Known explosives;

- Substances showing explosive effects in testing;

- Compounds designed with the view of producing a practical explosive or pyrotechnic effect; or

- Components consisting of synthetic precursors of intentional explosives;

(b) For mixtures, complexes or salts of inorganic oxidizing substances of Class 5.1 with organic material(s), the concentration of the inorganic oxidizing substance is:

- Less than 15%, by mass, if assigned to packing group I (high hazard) or II (medium hazard); or

- Less than 30%, by mass, if assigned to packing group III (low hazard);

(d) The sample is not packed together with other goods; and

(e) The sample is packed in accordance with packing instruction P520 and special packing provisions PP94 or PP95 of 4.1.4.1, as applicable.

2.1.5

Classification of articles as articles containing dangerous goods, n.o.s.

NOTE: For articles which do not have a proper shipping name, other than UN Nos. 3537 to 3548, and which contain only dangerous goods within the permitted limited quantity amounts specified in Column (7a) of Table A of Chapter 3.2, see UN No. 3363 and special provisions 301 and 672 of Chapter 3.3.

2.1.5.1

Articles containing dangerous goods may be classified as otherwise provided by ADR under the proper shipping name for the dangerous goods they contain or in accordance with this section.

For the purposes of this section “article” means machinery, apparatus or other devices containing one or more dangerous goods (or residues thereof) that are an integral element of the article, necessary for its functioning and that cannot be removed for the purpose of carriage.

An inner packaging shall not be an article.

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