2.2.52.1.6

Organic peroxides are classified into seven types according to the degree of danger they present. The types of organic peroxide range from typeA, which is not accepted for carriage in the packaging in which it is tested, to typeG, which is not subject to the provisions of Class5.2. The classification of types B to F is directly related to the maximum quantity allowed in one package. The principles to be applied to the classification of substances not listed in 2.2.52.4 are set out in the Manual of Tests and Criteria, Part II.

2.2.52.1.7

Organic peroxides which have already been classified and are already permitted for carriage in packagings are listed in 2.2.52.4, those already permitted for carriage in IBCs are listed in4.1.4.2, packing instruction IBC520 and those already permitted for carriage in tanks in accordance with Chapters 4.2 and 4.3 are listed in4.2.5.2, portable tank instruction T23. Each permitted substance listed is assigned to a generic entry of Table A of Chapter 3.2 (UN Nos. 3101 to 3120) and appropriate subsidiary hazardsand remarks providing relevant transport information are given.

These generic entries specify:

- the type (B to F) of organic peroxide (see 2.2.52.1.6 above);

- physical state (liquid/solid); and

- temperature control (when required), see 2.2.52.1.15 and 2.2.52.1.16.

Mixtures of these formulations may be classified as the same type of organic peroxide as that of the most dangerous component and be carried under the conditions of carriage given for this type. However, as two stable components can form a thermally less stable mixture, the self-accelerating
decomposition temperature (SADT) of the mixture shall be determined and, if necessary, the control and emergency temperatures derived from the SADT in accordance with 7.1.7.3.6.

2.2.52.1.8

Classification of organic peroxides not listed in 2.2.52.4, 4.1.4.2 packing instruction IBC520 or 4.2.5.2, portable tank instruction T23, and assignment to a collective entry shall be made by the competent authority of the country of origin. The statement of approval shall contain the classification and the relevant conditions of carriage. If the country of origin is not a Contracting Party to ADR, the classification and conditions of carriage shall be recognized by the competent authority of the first country Contracting Party to ADR reached by the consignment.

2.2.52.1.9

Samples of organic peroxides or formulations of organic peroxides not listed in 2.2.52.4, for which a complete set of test results is not available and which are to be carried for further testing or evaluation, shall be assigned to one of the appropriate entries for organic peroxides type C provided the following conditions are met:

- the available data indicate that the sample would be no more dangerous than organic peroxides type B;

- the sample is packaged in accordance with packing method OP2 and the quantity per transport unit is limited to 10 kg;

- the available data indicate that the control temperature, if any, is sufficiently low to prevent any dangerous decomposition and sufficiently high to prevent any dangerous phase separation.

2.2.52.1.10

Desensitization of organic peroxides

In order to ensure safety during carriage, organic peroxides are in many cases desensitized by organic liquids or solids, inorganic solids or water. Where a percentage of a substance is stipulated, this refers to the percentage by mass, rounded to the nearest whole number. In general, desensitization shall be such that, in case of spillage, the organic peroxide will not concentrate to a dangerous extent.

2.2.52.1.11

Unless otherwise stated for the individual organic peroxide formulation, the following definition(s) shall apply to diluents used for desensitization:
- diluents type A are organic liquids which are compatible with the organic peroxide and which have a boiling point of not less than 150 °C. Type A diluents may be used for desensitizing all organic peroxides;

- diluents type B are organic liquids which are compatible with the organic peroxide and which have a boiling point of less than 150 °C but not less than 60 °C and a flash-point of not less than 5 °C.

Type B diluents may be used for desensitization of all organic peroxides provided that the boiling point of the liquid is at least 60 °C higher than the SADT in a 50 kg package.

2.2.52.1.12

Diluents, other than type A or type B, may be added to organic peroxide formulations as listed in 2.2.52.4 provided that they are compatible. However, replacement of all or part of a type A or type B diluent by another diluent with differing properties requires that the organic peroxide formulation be re-assessed in accordance with the normal acceptance procedure for Class 5.2.

2.2.52.1.13

Water may only be used for the desensitization of organic peroxides which are listed in 2.2.52.4 or in the competent authority decision according to 2.2.52.1.8 as being "with water" or "as a stable dispersion in water". Samples of organic peroxides or formulations of organic peroxides not listed in 2.2.52.4 may also be desensitized with water provided the requirements of 2.2.52.1.9 are met.

2.2.52.1.14

Organic and inorganic solids may be used for desensitization of organic peroxides provided that they are compatible. Compatible liquids and solids are those which have no detrimental influence on the thermal stability and hazard type of theorganic peroxide formulation.

2.2.52.1.15

Temperature control requirements

The following organic peroxides shall be subject to temperature control during carriage:

- organic peroxides types B and C with an SADT ≤ 50 °C;

- organic peroxides type D showing a medium effect when heated under confinement with an SADT≤50 °C or showing a low or no effect when heated under confinement with an SADT≤45 °C; and

- organic peroxides types E and F with an SADT ≤ 45 °C.

NOTE:Provisions for the determination of the effects of heating under confinement are given in the Manual of Tests and Criteria, Part II, Section 20 and test series E in Section 25.

See7.1.7.

2.2.52.1.16

Where applicable, control and emergency temperatures are listed in 2.2.52.4. The actual temperature during carriage may be lower than the control temperature but shall be selected so as to avoid dangerous separation of phases.

2.2.52.2

Substances not accepted for carriage

Organic peroxides, type A, shall not be accepted for carriage under the provisions of Class5.2 (see Manual of Tests and Criteria, Part II, paragraph20.4.3(a)).

2.2.52.3

List of collective entries

2.2.52.4

List of currently assigned organic peroxides in packagings

In the column "Packing Method", codes "OP1" to "OP8" refer to packing methods in 4.1.4.1, packing instruction P520 (see also 4.1.7.1). Organic peroxides to be carried shall fulfil the classification and the control and emergency temperatures (derived from the SADT) as listed. For substances permitted in IBCs, see 4.1.4.2, packing instruction IBC520 and, for those permitted in tanks according to Chapters 4.2 and 4.3, see 4.2.5.2.6, portable tank instruction T23. The formulations listed in packing instruction IBC520 of 4.1.4.2 and in portable tank instruction T23 of 4.2.5.2.6 may also be carried packed in accordance with packing method OP8 of packing instruction P520 of 4.1.4.1, with the same control and emergency temperatures, if applicable.

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
ACETYL ACETONE PEROXIDE	≤ 42	≥ 48			≥8	OP7			3105	2)
"	≤ 32 as a paste					OP7			3106	20)
ACETYL CYCLOHEXANESULPHONYL PEROXIDE	≤ 82				≥ 12	OP4	-10	0	3112	3)
"	≤ 32		≥ 68			OP7	-10	0	3115
tert-AMYL HYDROPEROXIDE	≤ 88	≥ 6			≥ 6	OP8			3107
tert-AMYL PEROXYACETATE	≤ 62	≥ 38				OP7			3105
tert-AMYL PEROXYBENZOATE	≤ 100					OP5			3103
tert-AMYL PEROXY-2-ETHYLHEXANOATE	≤ 100					OP7	+20	+25	3115
tert-AMYL PEROXY-2-ETHYLHEXYL CARBONATE	≤ 100					OP7			3105
tert-AMYL PEROXY ISOPROPYL CARBONATE	 77	 23				OP5			3103
tert-AMYL PEROXYNEODECANOATE	≤ 77		≥ 23			OP7	0	+10	3115
"	≤ 47	≥ 53				OP8	0	+ 10	3119
tert-AMYL PEROXYPIVALATE	≤ 77		≥ 23			OP5	+10	+15	3113
tert-AMYLPEROXY-3,5,5-TRIMETHYLHEXANOATE	≤ 100					OP7			3105
tert-BUTYL CUMYL PEROXIDE	> 42 - 100					OP8			3109
"	≤ 52			≥ 48		OP8			3108
n-BUTYL-4,4-DI-(tert-BUTYLPEROXY)VALERATE	> 52 - 100					OP5			3103
"	≤ 52			≥ 48		OP8			3108
tert-BUTYL HYDROPEROXIDE	>79 - 90				≥ 10	OP5			3103	13)
"	≤ 80	≥ 20				OP7			3105	4) 13)
"	≤ 79				> 14	OP8			3107	13) 23)
"	≤ 72				≥ 28	OP8			3109	13)
tert-BUTYL HYDROPEROXIDE + DI-tert-BUTYLPEROXIDE	< 82 + >9				≥ 7	OP5			3103	13)

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
tert-BUTYL MONOPEROXYMALEATE	> 52 - 100					OP5			3102	3)
"	≤ 52	≥ 48				OP6			3103
"	≤ 52			≥ 48		OP8			3108
"	≤ 52 as a paste					OP8			3108
tert-BUTYL PEROXYACETATE	> 52 - 77	≥ 23				OP5			3101	3)
"	> 32 - 52	≥ 48				OP6			3103
"	≤ 32		≥ 68			OP8			3109
tert-BUTYL PEROXYBENZOATE	> 77 - 100					OP5			3103
"	> 52 - 77	≥23				OP7			3105
"	≤ 52			≥ 48		OP7			3106
tert-BUTYL PEROXYBUTYL FUMARATE	≤ 52	≥ 48				OP7			3105
tert-BUTYL PEROXYCROTONATE	≤ 77	≥ 23				OP7			3105
tert-BUTYL PEROXYDIETHYLACETATE	≤ 100					OP5	+20	+25	3113
tert-BUTYL PEROXY-2-ETHYLHEXANOATE	> 52 – 100					OP6	+20	+25	3113
"	> 32 - 52		≥ 48			OP8	+30	+35	3117
"	≤ 52			≥ 48		OP8	+20	+25	3118
"	≤ 32		≥ 68			OP8	+40	+45	3119
tert-BUTYL PEROXY-2-ETHYLHEXANOATE + 2,2-DI-(tert-BUTYLPEROXY)BUTANE	≤ 12 +≤ 14	≥ 14		≥ 60		OP7			3106
"	≤ 31 + ≤ 36		≥ 33			OP7	+35	+40	3115
tert-BUTYL PEROXY-2-ETHYLHEXYLCARBONATE	≤ 100					OP7			3105
tert-BUTYL PEROXYISOBUTYRATE	> 52 - 77		≥ 23			OP5	+15	+20	3111	3)
"	≤ 52		≥ 48			OP7	+15	+20	3115
tert-BUTYLPEROXY ISOPROPYLCARBONATE	≤ 77	≥ 23				OP5			3103

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
1-(2-tert-BUTYLPEROXY ISOPROPYL)-3- ISOPROPENYLBENZENE	≤ 77	≥ 23				OP7			3105
"	≤ 42			≥ 58		OP8			3108
tert-BUTYL PEROXY-2-METHYLBENZOATE	≤ 100					OP5			3103
tert-BUTYL PEROXYNEODECANOATE	> 77 - 100					OP7	-5	+5	3115
"	≤ 77		≥ 23			OP7	0	+10	3115
"	≤ 52 as a stable dispersion in water					OP8	0	+10	3119
"	≤ 42 as a stable dispersion in water (frozen)					OP8	0	+10	3118
"	≤ 32	≥ 68				OP8	0	+10	3119
tert-BUTYL PEROXYNEOHEPTANOATE	≤ 77	≥ 23				OP7	0	+10	3115
"	 42 as a stable dispersion in water					OP8	0	+10	3117
tert-BUTYL PEROXYPIVALATE	> 67 - 77	≥ 23				OP5	0	+10	3113
"	> 27 - 67		≥ 33			OP7	0	+10	3115
"	≤ 27		≥ 73			OP8	+30	+35	3119
tert-BUTYLPEROXY STEARYLCARBONATE	≤ 100					OP7			3106
tert-BUTYL PEROXY-3,5,5-TRIMETHYLHEXANOATE	> 37 - 100					OP7			3105
"	≤ 42			≥ 58		OP7			3106
"	≤ 37		≥ 63			OP8			3109
3-CHLOROPEROXYBENZOIC ACID	> 57 - 86			≥ 14		OP1			3102	3)
"	≤ 57			≥ 3	≥ 40	OP7			3106
"	≤ 77			≥ 6	≥ 17	OP7			3106
CUMYL HYDROPEROXIDE	> 90 - 98	≤10				OP8			3107	13)
"	≤ 90	≥ 10				OP8			3109	13) 18)

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
CUMYL PEROXYNEODECANOATE	≤ 87	≥ 13				OP7	- 10	0	3115
"	≤ 77		≥ 23			OP7	-10	0	3115
"	≤ 52 as a stable dispersion in water					OP8	-10	0	3119
CUMYL PEROXYNEOHEPTANOATE	≤ 77	≥ 23				OP7	-10	0	3115
CUMYL PEROXYPIVALATE	≤ 77		≥ 23			OP7	-5	+5	3115
CYCLOHEXANONE PEROXIDE(S)	≤ 91				≥ 9	OP6			3104	13)
"	≤ 72	≥ 28				OP7			3105	5)
"	≤ 72 as a paste					OP7			3106	5) 20)
"	≤ 32			≥ 68					Exempt	29)
([3R-(3R,5aS,6S,8aS,9R,10R,12S,12aR**)]- DECAHYDRO-10-METHOXY-3,6,9-TRIMETHYL-3,12- EPOXY-12H-PYRANO[4,3-j]-1,2-BENZODIOXEPIN)	≤ 100					OP7			3106
DIACETONE ALCOHOL PEROXIDES	≤ 57		≥ 26		≥ 8	OP7	+40	+45	3115	6)
DIACETYL PEROXIDE	≤ 27		≥ 73			OP7	+20	+25	3115	7) 13)
DI-tert-AMYL PEROXIDE	≤ 100					OP8			3107
2,2-DI-(tert-AMYLPEROXY)BUTANE	≤ 57	≥ 43				OP7			3105
1,1-DI-(tert-AMYLPEROXY)CYCLOHEXANE	≤ 82	≥ 18				OP6			3103
DIBENZOYL PEROXIDE	> 52 - 100			≤ 48		OP2			3102	3)
"	> 77 - 94				≥ 6	OP4			3102	3)
"	≤ 77				≥ 23	OP6			3104
"	≤ 62			≥ 28	≥ 10	OP7			3106
"	> 52 – 62 as a paste					OP7			3106	20)
"	> 35 - 52			≥ 48		OP7			3106
"	> 36 - 42	≥ 18			≤ 40	OP8			3107
"	≤ 56.5 as a paste				≥ 15	OP8			3108
"	≤ 52 as a paste					OP8			3108	20)
"	≤ 42 as a stable dispersion in water					OP8			3109
"	≤ 35			≥ 65					Exempt	29)

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
DI-(4-tert-BUTYLCYCLOHEXYL) PEROXYDICARBONATE	≤ 100					OP6	+30	+35	3114
"	≤ 42 as a stable dispersion in water					OP8	+30	+35	3119
"	≤ 42 (as a paste)					OP7	+35	+40	3116
DI-tert-BUTYL PEROXIDE	> 52 - 100					OP8			3107
"	≤ 52		≥ 48			OP8			3109	25)
DI-tert-BUTYL PEROXYAZELATE	≤ 52	≥ 48				OP7			3105
2,2-DI-(tert-BUTYLPEROXY)BUTANE	≤ 52	≥ 48				OP6			3103
1,6-Di-(tert-BUTYLPEROXYCARBONYLOXY) HEXANE	≤ 72	≥ 28				OP5			3103
1,1-DI-(tert-BUTYLPEROXY) CYCLOHEXANE	> 80 - 100					OP5			3101	3)
"	≤ 72		≥ 28			OP5			3103	30)
"	> 52 - 80	≥ 20				OP5			3103
"	> 42 - 52	≥ 48				OP7			3105
"	≤ 42	≥ 13		≥ 45		OP7			3106
"	≤ 42	≥ 58				OP8			3109
"	≤ 27	≥ 25				OP8			3107	21)
"	≤ 13	≥ 13	≥ 74			OP8			3109
1,1-DI-(tert-BUTYLPEROXY) CYCLOHEXANE + tert-BUTYL PEROXY-2-ETHYLHEXANOATE	≤ 43 + ≤ 16	≥ 41				OP 7			3105
DI-n-BUTYL PEROXYDICARBONATE	> 27 - 52		≥ 48			OP7	-15	-5	3115
"	≤ 27		≥ 73			OP8	-10	0	3117
"	≤ 42 as a stable dispersion in water (frozen)					OP8	-15	-5	3118
DI-sec-BUTYL PEROXYDICARBONATE	> 52 - 100					OP4	-20	-10	3113
"	≤ 52		≥ 48			OP7	-15	-5	3115

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
DI-(tert-BUTYLPEROXYISOPROPYL)BENZENE(S)	> 42 - 100			≤ 57		OP7			3106
"	≤ 42			≥ 58					Exempt	29)
DI-(tert-BUTYLPEROXY) PHTHALATE	> 42 - 52	≥ 48				OP7			3105
"	≤ 52 as a paste					OP7			3106	20)
"	≤ 42	≥ 58				OP8			3107
2,2-DI-(tert-BUTYLPEROXY)PROPANE	≤ 52	≥ 48				OP7			3105
"	≤ 42	≥ 13		≥ 45		OP7			3106
1,1-DI-(tert-BUTYLPEROXY)-3,3,5- TRIMETHYLCYCLOHEXANE	> 90 - 100					OP5			3101	3)
"	≤ 90		≥ 10			OP5			3103	30)
"	> 57 - 90	≥ 10				OP5			3103
"	≤ 77		≥ 23			OP5			3103
"	≤ 57			≥ 43		OP8			3110
"	≤ 57	≥ 43				OP8			3107
"	≤ 32	≥ 26	≥ 42			OP8			3107
DICETYL PEROXYDICARBONATE	≤ 100					OP8	+30	+35	3120
"	≤ 42 as a stable dispersion in water					OP8	+30	+35	3119
DI-4-CHLOROBENZOYL PEROXIDE	≤ 77				≥ 23	OP5			3102	3)
"	≤ 52 as a paste					OP7			3106	20)
"	≤ 32			≥ 68					Exempt	29)
DICUMYL PEROXIDE	> 52 - 100					OP8			3110	12)
"	≤ 52			≥ 48					Exempt	29)
DICYCLOHEXYL PEROXYDICARBONATE	> 91 - 100					OP3	+10	+15	3112	3)
"	≤ 91				≥ 9	OP5	+10	+15	3114
"	 42 as a stable dispersion in water					OP8	+15	+20	3119

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
DIDECANOYL PEROXIDE	≤ 100					OP6	+30	+35	3114
2,2-DI-(4,4-DI (tert-BUTYLPEROXY) CYCLOHEXYL) PROPANE	≤ 42			≥ 58		OP7			3106
"	≤ 22		≥ 78			OP8			3107
DI-2,4-DICHLOROBENZOYL PEROXIDE	≤ 77				≥ 23	OP5			3102	3)
"	≤ 52 as a paste					OP8	+ 20	+ 25	3118
"	≤ 52 as a paste with silicon oil					OP7			3106
DI-(2-ETHOXYETHYL) PEROXYDICARBONATE	≤ 52		≥ 48			OP7	-10	0	3115
DI-(2-ETHYLHEXYL) PEROXYDICARBONATE	> 77 – 100					OP5	-20	-10	3113
"	≤ 77		≥ 23			OP7	-15	-5	3115
"	≤ 62 as a stable dispersion in water					OP8	-15	-5	3119
"	≤ 52 as a stable dispersion in water (frozen)					OP8	-15	-5	3120
2,2-DIHYDROPEROXYPROPANE	≤ 27			≥ 73		OP5			3102	3)
DI-(1-HYDROXYCYCLOHEXYL) PEROXIDE	≤ 100					OP7			3106
DIISOBUTYRYL PEROXIDE	> 32 – 52		≥ 48			OP5	-20	-10	3111	3)
"	≤ 32		≥ 68			OP7	-20	-10	3115
"	≤ 42 (as a stable dispersion in water)					OP8	-20	-10	3119
DIISOPROPYLBENZENE DIHYDROPEROXIDE	≤ 82	≥ 5			≥ 5	OP7			3106	24)
DIISOPROPYL PEROXYDICARBONATE	> 52-100					OP2	-15	-5	3112	3)
"	≤ 52		≥ 48			OP7	-20	-10	3115
"	≤ 32	≥ 68				OP7	-15	-5	3115
DILAUROYL PEROXIDE	≤ 100					OP7			3106
"	≤ 42 as a stable dispersion in water					OP8			3109

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
DI-(3-METHOXYBUTYL) PEROXYDICARBONATE	≤ 52		≥ 48			OP7	-5	+5	3115
DI-(2-METHYLBENZOYL) PEROXIDE	≤ 87				≥ 13	OP5	+30	+35	3112	3)
DI-(3-METHYLBENZOYL) PEROXIDE + BENZOYL (3-METHYLBENZOYL) PEROXIDE + DIBENZOYL PEROXIDE	≤ 20 + ≤ 18 + ≤ 4		≥ 58			OP7	+35	+40	3115
DI-(4-METHYLBENZOYL) PEROXIDE	≤ 52 as a paste with silicon oil					OP7			3106
2,5-DIMETHYL-2,5-DI- (BENZOYLPEROXY)HEXANE	> 82-100					OP5			3102	3)
"	≤ 82			≥ 18		OP7			3106
"	≤ 82				≥ 18	OP5			3104
2,5-DIMETHYL-2,5-DI- (tert-BUTYLPEROXY)HEXANE	> 90 - 100					OP5			3103
"	> 52 - 90	≥ 10				OP7			3105
"	≤ 77			≥ 23		OP8			3108
"	≤ 52	≥ 48				OP8			3109
"	≤ 47 as a paste					OP8			3108
2,5-DIMETHYL-2,5-DI- (tert-BUTYLPEROXY)HEXYNE-3	> 86-100					OP5			3101	3)
"	>52-86	≥ 14				OP5			3103	26)
"	≤ 52			≥ 48		OP7			3106
2,5-DIMETHYL-2,5-DI- (2-ETHYLHEXANOYLPEROXY)HEXANE	≤ 100					OP5	+20	+25	3113
2,5-DIMETHYL-2,5-DIHYDROPEROXYHEXANE	≤ 82				≥ 18	OP6			3104
2,5-DIMETHYL-2,5-DI-(3,5,5- TRIMETHYLHEXANOYLPEROXY)HEXANE	≤ 77	≥ 23				OP7			3105
1,1-DIMETHYL-3-HYDROXYBUTYL PEROXYNEOHEPTANOATE	≤ 52	≥ 48				OP8	0	+10	3117
DIMYRISTYL PEROXYDICARBONATE	≤ 100					OP7	+20	+25	3116
"	≤ 42 as a stable dispersion in water					OP8	+20	+25	3119

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
DI-(2-NEODECANOYLPEROXYISOPROPYL) BENZENE	≤ 52	≥ 48				OP7	-10	0	3115
DI-n-NONANOYL PEROXIDE	≤ 100					OP7	0	+10	3116
DI-n-OCTANOYL PEROXIDE	≤ 100					OP5	+10	+15	3114
DI-(2-PHENOXYETHYL) PEROXYDICARBONATE	>85-100					OP5			3102	3)
"	≤ 85				≥ 15	OP7			3106
DIPROPIONYL PEROXIDE	≤ 27		≥ 73			OP8	+15	+20	3117
DI-n-PROPYL PEROXYDICARBONATE	≤ 100					OP3	-25	-15	3113
"	≤ 77		≥ 23			OP5	-20	-10	3113
DISUCCINIC ACID PEROXIDE	> 72-100					OP4			3102	3) 17)
"	≤ 72				≥ 28	OP7	+10	+15	3116
DI-(3,5,5-TRIMETHYLHEXANOYL) PEROXIDE	> 52-82	≥ 18				OP7	0	+10	3115
"	≤ 52 as a stable dispersion in water					OP8	+10	+15	3119
"	> 38-52	≥ 48				OP8	+10	+15	3119
"	≤ 38	≥ 62				OP8	+20	+25	3119
ETHYL 3,3-DI-(tert-AMYLPEROXY)BUTYRATE	≤ 67	≥ 33				OP7			3105
ETHYL 3,3-DI-(tert-BUTYLPEROXY)BUTYRATE	> 77 - 100					OP5			3103
"	≤ 77	≥ 23				OP7			3105
"	≤ 52			≥ 48		OP7			3106
1-(2-ETHYLHEXANOYLPEROXY)-1,3- DIMETHYLBUTYL PEROXYPIVALATE	≤ 52	≥ 45	≥ 10			OP7	-20	-10	3115
tert-HEXYL PEROXYNEODECANOATE	≤ 71	≥ 29				OP7	0	+10	3115
tert-HEXYL PEROXYPIVALATE	≤ 72		≥ 28			OP7	+10	+15	3115
3-HYDROXY-1,1-DIMETHYLBUTYL PEROXYNEODECANOATE	≤ 77	≥ 23				OP 7	- 5	+ 5	3115
"	≤ 52	≥ 48				OP 8	- 5	+ 5	3117

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
"	≤ 52 as a stable dispersion in water					OP 8	- 5	+ 5	3119
ISOPROPYL sec-BUTYL PEROXYDICARBONATE +DI-sec-BUTYL PEROXYDICARBONATE +DI-ISOPROPYL PEROXYDICARBONATE	≤ 32 + ≤ 15 – 18 ≤ 12 – 15	≥ 38				OP7	-20	-10	3115
"	≤ 52 + ≤ 28 + ≤ 22					OP5	-20	-10	3111	3)
ISOPROPYLCUMYL HYDROPEROXIDE	≤ 72	≥ 28				OP8			3109	13)
p-MENTHYL HYDROPEROXIDE	> 72 - 100					OP7			3105	13)
"	≤ 72	≥ 28				OP8			3109	27)
METHYLCYCLOHEXANONE PEROXIDE(S)	≤ 67		≥ 33			OP7	+35	+40	3115
METHYL ETHYL KETONE PEROXIDE(S)	see remark 8)	≥ 48				OP5			3101	3) 8) 13)
"	see remark 9)	≥ 55				OP7			3105	9)
"	see remark 10)	≥ 60				OP8			3107	10)
METHYL ISOBUTYL KETONE PEROXIDE(S)	≤ 62	≥ 19				OP7			3105	22)
METHYL ISOPROPYL KETONE PEROXIDE(S)	see remark 31)	≥ 70				OP8			3109	31)
ORGANIC PEROXIDE, LIQUID, SAMPLE						OP2			3103	11)
ORGANIC PEROXIDE, LIQUID, SAMPLE, TEMPERATURE CONTROLLED						OP2			3113	11)
ORGANIC PEROXIDE, SOLID, SAMPLE						OP2			3104	11)
ORGANIC PEROXIDE, SOLID, SAMPLE, TEMPERATURE CONTROLLED						OP2			3114	11)
3,3,5,7,7-PENTAMETHYL-1,2,4-TRIOXEPANE	≤ 100					OP8			3107
PEROXYACETIC ACID, TYPE D, stabilized	≤ 43					OP7			3105	13) 14) 19)
PEROXYACETIC ACID, TYPE E, stabilized	≤ 43					OP8			3107	13) 15) 19)
PEROXYACETIC ACID, TYPE F, stabilized	≤ 43					OP8			3109	13) 16) 19)
PEROXYLAURIC ACID	 100					OP8	+35	+40	3118
1-PHENYLETHYL HYDROPEROXIDE	≤ 38		≥ 62			OP8			3109
PINANYL HYDROPEROXIDE	> 56 – 100					OP7			3105	13)

- 183 -

ORGANIC PEROXIDE	Concentration (%)	Diluent type A (%)	Diluent type B (%) 1)	Inert solid (%)	Water	Packing Method	Control temperature (°C)	Emergency temperature (°C)	Number (Generic entry)	Subsidiary hazards and remarks
"	≤ 56	≥ 44				OP8			3109
POLYETHER POLY-tert-BUTYLPEROXY- CARBONATE	 52		 48			OP8			3107
1,1,3,3-TETRAMETHYLBUTYL HYDROPEROXIDE	≤ 100					OP7			3105
1,1,3,3-TETRAMETHYLBUTYL PEROXY-2- ETHYLHEXANOATE	≤ 100					OP7	+15	+20	3115
1,1,3,3- TETRAMETHYLBUTYL PEROXYNEODECANOATE	≤ 72		≥ 28			OP7	-5	+5	3115
"	≤ 52 as a stable dispersion in water					OP8	-5	+5	3119
1,1,3,3-TETRAMETHYLBUTYL PEROXYPIVALATE	 77	 23				OP7	0	+10	3115
3,6,9-TRIETHYL-3,6,9-TRIMETHYL-1,4,7 TRIPEROXONANE	≤ 17	≥ 18		≥ 65		OP8			3110
3,6,9-TRIETHYL-3,6,9-TRIMETHYL -1,4,7 TRIPEROXONANE	≤ 42	≥ 58				OP7			3105	28)

Remarks (refer to the last column of the Table in 2.2.52.4):

Diluent type B may always be replaced by diluent type A. The boiling point of diluent type B shall be at least 60°C higher than the SADT of the organic peroxide.
Available oxygen  4.7%.
"EXPLOSIVE" subsidiary hazard label required (Model No.1, see 5.2.2.2.2).
Diluent may be replaced by di-tert-butyl peroxide.
Available oxygen  9%.
With  9% hydrogen peroxide; available oxygen  10%.
Only non-metallic packagings allowed.
Available oxygen > 10% and  10.7%, with or without water.
Available oxygen  10% , with or without water.
Available oxygen  8.2% , with or without water. 11) See 2.2.52.1.9.

Up to 2000 kg per receptacle assigned to ORGANIC PEROXIDE TYPE F on the basis of large scale trials.
"CORROSIVE" subsidiary hazard label required (Model No.8, see 5.2.2.2.2).
Peroxyacetic acid formulations which fulfil the criteria of the Manual of Tests and Criteria, paragraph 20.4.3 (d).
Peroxyacetic acid formulations which fulfil the criteria of the Manual of Tests and Criteria, paragraph 20.4.3 (e).
Peroxyacetic acid formulations which fulfil the criteria of the Manual of Tests and Criteria, paragraph 20.4.3 (f).
Addition of water to this organic peroxide will decrease its thermal stability.
No "CORROSIVE" subsidiary hazard label (Model No.8, see 5.2.2.2.2) required for concentrations below 80%.
Mixtures with hydrogen peroxide, water and acid(s).
With diluent type A, with or without water.
With  25% diluent type A by mass, and in addition ethylbenzene.
With  19%, diluent type A by mass, and in addition methyl isobutyl ketone.
With < 6% di-tert-butyl peroxide.
With  8% 1-isopropylhydroperoxy-4-isopropylhydroxybenzene.
Diluent type B with boiling point > 110 °C.
With < 0.5% hydroperoxides content.
For concentrations more than 56%, "CORROSIVE" subsidiary hazard label required (Model No.8, see 5.2.2.2.2).
Available active oxygen  7.6% in diluent type A having a 95% boil-off point in the range of 200 - 260 °C.
Not subject to the requirements of ADR for Class 5.2.
Diluent type B with boiling point > 130 °C.
Active oxygen  6.7%.

2.2.61

Class 6.1 Toxic substances

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