IBC520
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IBC520 This instruction applies to organic peroxides and self-reactive substances of type F. The IBCs listed below are authorized for the formulations listed, provided the general provisions of 4.1.1, 4.1.2 and 4.1.3 and special provisions of 4.1.7.2 are met. The formulations not listed in 2.4.2.3.2.3 or 2.5.3.2.4 but listed below may also be transported 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. For formulations not listed below, only IBCs which are approved by the competent authority may be used (see 4.1.7.2.2). Maximum Control Emergency UN Type of Organic peroxide quantity temper- temper- No. IBC (litres) ature ature 3109 ORGANIC PEROXIDE TYPE F, LIQUID tert-Butyl cumyl peroxide 31HA1 1,000 tert-Butyl hydroperoxide, not more than 72% with water 31A 1,250 31HA1 1,000 tert-Butyl peroxyacetate, not more than 32% in diluent type A 31A 1,250 31HA1 1,000 tert-Butyl peroxybenzoate, not more than 32% in diluent type A 31A 1,250 tert-Butyl peroxy-3,5,5-trimethylhexanoate, not more than 37% 31A 1,250 in diluent type A 31HA1 1,000 Cumyl hydroperoxide, not more than 90% in diluent type A 31HA1 1,250 Dibenzoyl peroxide, not more than 42% as a stable dispersion 31H1 1,000 Di-tert-butyl peroxide, not more than 52% in diluent type A 31A 1,250 31HA1 1,000 1,1-Di-(tert-butylperoxy)cyclohexane, not more than 37% in 31A 1,250 diluent type A 1,1-Di-(tert-butylperoxy)cyclohexane, not more than 42% in 31H1 1,000 diluent type A Dilauroyl peroxide, not more than 42%, stable dispersion, in 31HA1 1,000 water 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane, not more than 31HA1 1,000 52% in diluent type A Isopropylcumyl hydroperoxide, not more than 72% in diluent 31HA1 1,250 type A p-Menthyl hydroperoxide, not more than 72% in diluent type A 31HA1 1,250 Peroxyacetic acid, stabilized, not more than 17% 31H1 1,500 31H2 1,500 31HA1 1,500 31A 1,500 3,6,9-Triethyl-3,6,9-trimethyl-1,4,7-triperoxonane, not more than 31HA1 1,000 27% in diluent type A (continued) IBC520 Maximum Control Emergency UN Type of Organic peroxide quantity temper- temper- No. IBC (litres) ature ature 3110 ORGANIC PEROXIDE TYPE F, SOLID Dicumyl peroxide 31A 2,000 31H1 31HA1 3119 ORGANIC PEROXIDE TYPE F, LIQUID, TEMPERATURE CONTROLLED tert-Amyl peroxy-2-ethylhexanoate, not more than 62% in 31HA1 1,000 15C 20C + ° + ° diluent type A tert-Amyl peroxypivalate, not more than 32% in diluent type A 31A 1,250 10C 15C + ° + ° tert-Amyl peroxypivalate, not more than 42%, stable 31HA1 1,000 0C 10C ° + ° dispersion, in water tert-Butyl peroxy-2-ethylhexanoate, not more than 32% in 31HA1 1,000 30C 35C + ° + ° diluent type B 31A 1,250 30C 35C + ° + ° tert-Butyl peroxyneodecanoate, not more than 32% in diluent 31A 1,250 0C 10C ° + ° type A tert-Butyl peroxyneodecanoate, not more than 42%, stable 31A 1,250 5C 5C - ° + ° dispersion, in water tert-Butyl peroxyneodecanoate, not more than 52%, stable 31A 1,250 5C 5C - ° + ° dispersion, in water tert-Butyl peroxypivalate, not more than 27% in diluent type B 31HA1 1,000 10C 15C + ° + ° 31A 1,250 10C 15C + ° + ° tert-Butyl peroxypivalate, not more than 42% in diluent type A 31HA1 1,000 10C 15C + ° + ° 31A 1,250 10C 15C + ° + ° Di-(2-neodecanoylperoxyisopropyl)benzene, not more than 31A 1,250 15C 5C - ° - ° 42%, stable dispersion, in water 3-Hydroxy-1,1-dimethylbutyl peroxy neodecanoate, not more 31A 1,250 15C 5C - ° - ° than 52%, stable dispersion, in water 4 Cumyl peroxyneodecanoate, not more than 52%, stable 31A 1,250 15C 5C - ° - ° dispersion, in water Di-(4-tert-butylcyclohexyl) peroxydicarbonate, not more than 31HA1 1,000 30C 35C + ° + ° 42%, stable dispersion, in water Dicetyl peroxydicarbonate, not more than 42%, stable 31HA1 1,000 30C 35C + ° + ° dispersion, in water Dicyclohexyl peroxydicarbonate, not more than 42% as 31A 1,250 10C 15C + ° + ° a stable dispersion, in water Di-(2-ethylhexyl) peroxydicarbonate, not more than 62%, stable 31A 1,250 20C 10C - ° - ° dispersion, in water 31HA1 1,000 20C 10C - ° - ° Dimyristyl peroxydicarbonate, not more than 42%, stable 31HA1 1,000 15C 20C + ° + ° dispersion, in water Di-(3,5,5-trimethylhexanoyl) peroxide, not more than 52% in 31HA1 1,000 10C 15C + ° + ° diluent type A 31A 1,250 10C 15C + ° + ° △ Di-(3,5,5-trimethylhexanoyl) peroxide, not more than 52%, 31HA1 1,000 + 10 ° C + 15 ° C stable dispersion, in water 31A 1,250 10C 15C + ° + ° Diisobutyryl peroxide, not more than 28%, stable dispersion, 31HA1 1,000 20C 10C - ° - ° in water 31A 1,250 20C 10C - ° - ° Diisobutyryl peroxide, not more than 42%, stable dispersion, 31HA1 1,000 25C 15C - ° - ° in water 31A 1,250 25C 15C - ° - ° 1,1,3,3-Tetramethylbutyl peroxy-2-ethylhexanoate, not more 31HA1 1,000 15C 20C + ° + ° than 67%, in diluent type A 1,1,3,3-Tetramethylbutyl peroxyneodecanoate, not more than 31A 1,250 5C 5C - ° + ° 52%, stable dispersion, in water 31HA1 1,000 5C 5C - ° + ° 3120 ORGANIC PEROXIDE, TYPE F, SOLID, TEMPERATURE CONTROLLED Additional provisions: IBCs shall be provided with a device to allow venting during transport. The inlet to the pressure relief device shall be sited in the vapour space of the IBC under maximum filling conditions during transport. To prevent explosive rupture of metal IBCs or composite IBCs with complete metal casing, the emergency relief devices shall be designed to vent all the decomposition products and vapours evolved during self-accelerating decomposition or during a period of not less than one hour of fire-engulfment as calculated by the formula in 4.2.1.13.8. The control and emergency temperatures specified in this packing instruction are based on a non-insulated IBC. When consigning an organic peroxide in an IBC in accordance with this instruction, it is the responsibility of the consignor to ensure that: (a) the pressure and emergency relief devices installed on the IBC are designed to take appropriate account of the self-accelerating decomposition of the organic peroxide and of fire engulfment; and (b) when applicable, the control and emergency temperatures indicated are appropriate, taking into account the design (such as insulation) of the IBC to be used.
IMDG Code 42-24 · English source text