4.2.5.2.6

portable tank instructions

portable tank instructions specify the requirements applicable to a portable tank when used for the

carriage of specific substances. portable tank instructions t1 to t22 specify the applicable minimum

test pressure, the minimum shell thickness (in mm reference steel), and the pressure-relief and bottomopening

requirements.

t1 - t22	portable tank instructions			t1 - t22
these portable tank instructions apply to liquid and solid substances of class 1 and classes 3 to 9. the general provisions of section 4.2.1 and the requirements of section 6.7.2 shall be met.
portable tank instruction	minimum test pressure (bar)	minimum shell thickness (in mm-reference steel) (see 6.7.2.4)	pressure-relief requirementsa(see 6.7.2.8)	bottom opening requirementsb(see 6.7.2.6)
t1	1.5	see 6.7.2.4.2	normal	see 6.7.2.6.2
t2	1.5	see 6.7.2.4.2	normal	see 6.7.2.6.3
t3	2.65	see 6.7.2.4.2	normal	see 6.7.2.6.2
t4	2.65	see 6.7.2.4.2	normal	see 6.7.2.6.3
t5	2.65	see 6.7.2.4.2	see 6.7.2.8.3	not allowed
t6	4	see 6.7.2.4.2	normal	see 6.7.2.6.2
t7	4	see 6.7.2.4.2	normal	see 6.7.2.6.3
t8	4	see 6.7.2.4.2	normal	not allowed
t9	4	6mm	normal	not allowed
t10	4	6mm	see 6.7.2.8.3	not allowed
t11	6	see 6.7.2.4.2	normal	see 6.7.2.6.3
t12	6	see 6.7.2.4.2	see 6.7.2.8.3	see 6.7.2.6.3
t13	6	6mm	normal	not allowed
t14	6	6mm	see 6.7.2.8.3	not allowed
t15	10	see 6.7.2.4.2	normal	see 6.7.2.6.3
t16	10	see 6.7.2.4.2	see 6.7.2.8.3	see 6.7.2.6.3
t17	10	6mm	normal	see 6.7.2.6.3
t18	10	6mm	see 6.7.2.8.3	see 6.7.2.6.3
t19	10	6mm	see 6.7.2.8.3	not allowed
t20	10	8mm	see 6.7.2.8.3	not allowed
t21	10	10mm	normal	not allowed
t22	10	10mm	see 6.7.2.8.3	not allowed

a when the word "normal" is indicated, all the requirements of 6.7.2.8 apply except for 6.7.2.8.3.

b when this column indicates "not allowed", bottom openings are not permitted when the substance to be carried is a liquid (see 6.7.2.6.1). when the substance to be carried is a solid at all temperatures encountered under normal conditions of carriage, bottom openings conforming to the requirements of 6.7.2.6.2 are authorized.

t23 portable tank instruction t23 this portable tank instruction applies to self-reactive substances of class 4.1 and organic peroxides of class 5.2. the general provisions of section 4.2.1 and the requirements of section 6.7.2 shall be met. the additional provisions specific to self-reactive substances of class 4.1 and organic peroxides of class 5.2 in 4.2.1.13 shall also be met.
un no.	substance	minimum test pressure (bar)	minimum shell thickness (mm- reference steel)	bottom opening requi- rements	pressure- relief requi- rements	degree of filling	control tempe- rature	emergency temperature
3109	organic peroxide, type f, liquid tert-butyl hydro- peroxidea, not more than 72% with water cumyl hydro-peroxide, not more than 90% in diluent type a di-tert-butyl peroxide, not more than 32% in diluent type a isopropyl cumyl hydro- peroxide, not more than 72% in diluent type a p-menthyl hydro- peroxide, not more than 72% in diluent type a pinanyl hydro- peroxide, not more than 56% in diluent type a	4	see 6.7.2.4.2	see 6.7.2.6.3	see 6.7.2.8.2 4.2.1.13.6 4.2.1.13.7 4.2.1.13.8	see 4.2.1.13.13
3110	organic peroxide type f, solid dicumyl peroxide b	4	see 6.7.2.4.2	see 6.7.2.6.3	see 6.7.2.8.2 4.2.1.13.6 4.2.1.13.7 4.2.1.13.8	see 4.2.1.13.13
3119	organic peroxide, type f, liquid, temperature controlled	4	see 6.7.2.4.2	see 6.7.2.6.3	see 6.7.2.8.2 4.2.1.13.6 4.2.1.13.7 4.2.1.13.8	see 4.2.1.13.13	c	c
	tert-amyl peroxyneodecanoate, not more than 47% in diluent type a						-10 °c	-5 °c
	tert-butyl peroxyacetate, not more than 32% in diluent type b						+30 °c	+35 °c
	tert-butyl peroxy-2- ethylhexanoate, not more than 32% in diluent type b						+15 °c	+20 °c

a provided that steps have been taken to achieve the safety equivalence of 65% tert-butyl hydroperoxide and 35% water.

b maximum quantity per portable tank: 2000 kg.

c as approved by the competent authority.

t23 portable tank instruction (cont'd) t23 this portable tank instruction applies to self-reactive substances of class 4.1 and organic peroxides of class 5.2. the general provisions of section 4.2.1 and the requirements of section 6.7.2 shall be met. the additional provisions specific to self-reactive substances of class 4.1 and organic peroxides of class 5.2 in 4.2.1.13 shall also be met.
un no.	substance	minimum test pressure (bar)	minimum shell thickness (mm- reference steel)	bottom opening requi- rements	pressure- relief requi- rements	degree of filling	control tempe- rature	emergency temperature
3119 (cont'd)	tert-butyl peroxypivalate, not more than 27% in diluent type b						+5 °c	+10 °c
	tert-butyl peroxy- 3,5,5-trimethyl- hexanoate, not more than 32% in diluent type b						+35 °c	+40 °c
	di-(3,5,5-trimethyl- hexanoyl) peroxide, not more than 38% in diluent type a or type b						0 °c	+5 °c
	peroxyacetic acid, distilled, type f, stabilized d						+30 c	+35 c
3120	organic peroxide, type f, solid, temperature controlled	4	see 6.7.2.4.2	see 6.7.2.6.3	see 6.7.2.8.2 4.2.1.13.6 4.2.1.13.7 4.2.1.13.8	see 4.2.1.13.13	c	c
3229	self-reactive liquid type f	4	see 6.7.2.4.2	see 6.7.2.6.3	see 6.7.2.8.2 4.2.1.13.6 4.2.1.13.7 4.2.1.13.8	see 4.2.1.13.13
3230	self-reactive solid type f	4	see 6.7.2.4.2	see 6.7.2.6.3	see 6.7.2.8.2 4.2.1.13.6 4.2.1.13.7 4.2.1.13.8	see 4.2.1.13.13
3239	self-reactive liquid type f, temperature controlled	4	see 6.7.2.4.2	see 6.7.2.6.3	see 6.7.2.8.2 4.2.1.13.6 4.2.1.13.7 4.2.1.13.8	see 4.2.1.13.13	c	c
3240	self-reactive solid type f, temperature controlled	4	see 6.7.2.4.2	see 6.7.2.6.3	see 6.7.2.8.2 4.2.1.13.6 4.2.1.13.7 4.2.1.13.8	see 4.2.1.13.13	c	c

c as approved by the competent authority.

d formulation derived from distillation of peroxyacetic acid originating from peroxyacetic acid in concentration of not more than 41% with water, total active oxygen (peroxyacetic acid+h2o2)  9.5%, which fulfils the criteria of the manual of tests and criteria, paragraph 20.4.3 (f). "corrosive" subsidiary risk placard required (model no 8, see 5.2.2.2.2).

t50 portable tank instruction t50 this portable tank instruction applies to non-refrigerated liquefied gases and chemicals under pressure (un nos. 3500, 3501, 3502, 3503, 3504 and 3505). the general provisions of section 4.2.2 and the requirements of section 6.7.3 shall be met.
un no.	non-refrigerated liquefied gases	max. allowable working pressure (bar): small; bare; sunshield; insulated; respectively a	openings below liquid level	pressure- relief requirementsb(see 6.7.3.7)	maximum filling ratio
1005	ammonia, anhydrous	29.0 25.7 22.0 19.7	allowed	see 6.7.3.7.3	0.53
1009	bromotrifluoromethane (refrigerant gas r 13b1)	38.0 34.0 30.0 27.5	allowed	normal	1.13
1010	butadienes, stabilized	7.5 7.0 7.0 7.0	allowed	normal	0.55
1010	butadienes and hydrocarbon mixture, stabilized	see mawp definition in 6.7.3.1	allowed	normal	see 4.2.2.7
1011	butane	7.0 7.0 7.0 7.0	allowed	normal	0.51
1012	butylene	8.0 7.0 7.0 7.0	allowed	normal	0.53
1017	chlorine	19.0 17.0 15.0 13.5	not allowed	see 6.7.3.7.3	1.25
1018	chlorodifluoromethane (refrigerant gas r 22)	26.0 24.0 21.0 19.0	allowed	normal	1.03
1020	chloropentafluoroethane (refrigerant gas r 115)	23.0 20.0 18.0 16.0	allowed	normal	1.06
1021	1-chloro- 1,2,2,2-tetrafluoroethane (refrigerant gas r 124)	10.3 9.8 7.9 7.0	allowed	normal	1.20
1027	cyclopropane	18.0 16.0 14.5 13.0	allowed	normal	0.53

t50 portable tank instruction (cont'd) t50 this portable tank instruction applies to non-refrigerated liquefied gases and chemicals under pressure (un nos. 3500, 3501, 3502, 3503, 3504 and 3505). the general provisions of section 4.2.2 and the requirements of section 6.7.3 shall be met.
un no.	non-refrigerated liquefied gases	max. allowable working pressure (bar): small; bare; sunshield; insulated; respectively a	openings below liquid level	pressure- relief requirementsb(see 6.7.3.7)	maximum filling ratio
1028	dichlorodifluoromethane (refrigerant gas r 12)	16.0 15.0 13.0 11.5	allowed	normal	1.15
1029	dichlorofluoromethane (refrigerant gas r 21)	7.0 7.0 7.0 7.0	allowed	normal	1.23
1030	1,1-difluoroethane (refrigerant gas r 152a)	16.0 14.0 12.4 11.0	allowed	normal	0.79
1032	dimethylamine, anhydrous	7.0 7.0 7.0 7.0	allowed	normal	0.59
1033	dimethyl ether	15.5 13.8 12.0 10.6	allowed	normal	0.58
1036	ethylamine	7.0 7.0 7.0 7.0	allowed	normal	0.61
1037	ethyl chloride	7.0 7.0 7.0 7.0	allowed	normal	0.80
1040	ethylene oxide with nitrogen up to a total pressure of 1mpa (10 bar) at 50 °c	- - - 10.0	not allowed	see 6.7.3.7.3	0.78
1041	ethylene oxide and carbon dioxide mixture with more than 9% but not more than 87% ethylene oxide	see mawp definition in 6.7.3.1	allowed	normal	see 4.2.2.7
1055	isobutylene	8.1 7.0 7.0 7.0	allowed	normal	0.52

t50 portable tank instruction (cont'd) t50 this portable tank instruction applies to non-refrigerated liquefied gases and chemicals under pressure (un nos. 3500, 3501, 3502, 3503, 3504 and 3505). the general provisions of section 4.2.2 and the requirements of section 6.7.3 shall be met.
un no.	non-refrigerated liquefied gases	max. allowable working pressure (bar): small; bare; sunshield; insulated respectively a	openings below liquid level	pressure- relief requirementsb(see 6.7.3.7)	maximum filling ratio
1060	methylacetylene and propadiene mixture, stabilized	28.0 24.5 22.0 20.0	allowed	normal	0.43
1061	methylamine, anhydrous	10.8 9.6 7.8 7.0	allowed	normal	0.58
1062	methyl bromide with not more than 2% chloropicrin	7.0 7.0 7.0 7.0	not allowed	see 6.7.3.7.3	1.51
1063	methyl chloride (refrigerant gas r 40)	14.5 12.7 11.3 10.0	allowed	normal	0.81
1064	methyl mercaptan	7.0 7.0 7.0 7.0	not allowed	see 6.7.3.7.3	0.78
1067	dinitrogen tetroxide	7.0 7.0 7.0 7.0	not allowed	see 6.7.3.7.3	1.30
1075	petroleum gases, liquefied	see mawp definition in 6.7.3.1	allowed	normal	see 4.2.2.7
1077	propylene	28.0 24.5 22.0 20.0	allowed	normal	0.43
1078	refrigerant gas, n.o.s.	see mawp definition in 6.7.3.1	allowed	normal	see 4.2.2.7
1079	sulphur dioxide	11.6 10.3 8.5 7.6	not allowed	see 6.7.3.7.3	1.23
1082	trifluorochloroethylene, stabilized (refrigerant gas r 1113)	17.0 15.0 13.1 11.6	not allowed	see 6.7.3.7.3	1.13

t50 portable tank instruction (cont'd) t50 this portable tank instruction applies to non-refrigerated liquefied gases and chemicals under pressure (un nos. 3500, 3501, 3502, 3503, 3504 and 3505). the general provisions of section 4.2.2 and the requirements of section 6.7.3 shall be met.
un no.	non-refrigerated liquefied gases	max. allowable working pressure (bar): small; bare; sunshield; insulated respectively a	openings below liquid level	pressure- relief requirementsb(see 6.7.3.7)	maximum filling ratio
1083	trimethylamine, anhydrous	7.0 7.0 7.0 7.0	allowed	normal	0.56
1085	vinyl bromide, stabilized	7.0 7.0 7.0 7.0	allowed	normal	1.37
1086	vinyl chloride, stabilized	10.6 9.3 8.0 7.0	allowed	normal	0.81
1087	vinyl methyl ether, stabilized	7.0 7.0 7.0 7.0	allowed	normal	0.67
1581	chloropicrin and methyl bromide mixture with more than 2% chloropicrin	7.0 7.0 7.0 7.0	not allowed	see 6.7.3.7.3	1.51
1582	chloropicrin and methyl chloride mixture	19.2 16.9 15.1 13.1	not allowed	see 6.7.3.7.3	0.81
1858	hexafluoropropylene (refrigerant gas r 1216)	19.2 16.9 15.1 13.1	allowed	normal	1.11
1912	methyl chloride and methylene chloride mixture	15.2 13.0 11.6 10.1	allowed	normal	0.81
1958	1,2-dichloro-1,1,2,2- tetrafluoroethane (refrigerant gas r 114)	7.0 7.0 7.0 7.0	allowed	normal	1.30
1965	hydrocarbon gas, mixture liquefied, n.o.s.	see mawp definition in 6.7.3.1	allowed	normal	see 4.2.2.7
1969	isobutane	8.5 7.5 7.0 7.0	allowed	normal	0.49

t50 portable tank instruction (cont'd) t50 this portable tank instruction applies to non-refrigerated liquefied gases and chemicals under pressure (un nos. 3500, 3501, 3502, 3503, 3504 and 3505). the general provisions of section 4.2.2 and the requirements of section 6.7.3 shall be met.
un no.	non-refrigerated liquefied gases	max. allowable working pressure (bar): small; bare; sunshield; insulated respectively a	openings below liquid level	pressure- relief requirementsb(see 6.7.3.7)	maximum filling ratio
1973	chlorodifluoromethane and chloropentafluoroethane mixture with fixed boiling point, with approximately 49% chlorodifluoromethane (refrigerant gas r 502)	28.3 25.3 22.8 20.3	allowed	normal	1.05
1974	chlorodifluorobromomethane (refrigerant gas r 12b1)	7.4 7.0 7.0 7.0	allowed	normal	1.61
1976	octafluorocyclobutane (refrigerant gas rc 318)	8.8 7.8 7.0 7.0	allowed	normal	1.34
1978	propane	22.5 20.4 18.0 16.5	allowed	normal	0.42
1983	1-chloro-2,2,2-trifluoroethane (refrigerant gas r 133a)	7.0 7.0 7.0 7.0	allowed	normal	1.18
2035	1,1,1-trifluoroethane (refrigerant gas r 143a)	31.0 27.5 24.2 21.8	allowed	normal	0.76
2424	octafluoropropane (refrigerant gas r 218)	23.1 20.8 18.6 16.6	allowed	normal	1.07
2517	1-chloro-1,1-difluoroethane (refrigerant gas r 142b)	8.9 7.8 7.0 7.0	allowed	normal	0.99
2602	dichlorodifluoromethane and 1,1-difluoroethane azeotropic mixture with approximately 74% dichlorodifluoromethane (refrigerant gas r 500)	20.0 18.0 16.0 14.5	allowed	normal	1.01

t50 portable tank instruction (cont'd) t50 this portable tank instruction applies to non-refrigerated liquefied gases and chemicals under pressure (un nos. 3500, 3501, 3502, 3503, 3504 and 3505). the general provisions of section 4.2.2 and the requirements of section 6.7.3 shall be met.
un no.	non-refrigerated liquefied gases	max. allowable working pressure (bar): small; bare; sunshield; insulated; respectively a	openings below liquid level	pressure- relief requirementsb(see 6.7.3.7)	maximum filling ratio
3057	trifluoroacetyl chloride	14.6 12.9 11.3 9.9	not allowed	see 6.7.3.7.3	1.17
3070	ethylene oxide and dichlorodifluoromethane mixture with not more than 12.5% ethylene oxide	14.0 12.0 11.0 9.0	allowed	see 6.7.3.7.3	1.09
3153	perfluoro (methyl vinyl ether)	14.3 13.4 11.2 10.2	allowed	normal	1.14
3159	1,1,1,2-tetrafluoroethane (refrigerant gas r 134a)	17.7 15.7 13.8 12.1	allowed	normal	1.04
3161	liquefied gas, flammable, n.o.s.	see mawp definition in 6.7.3.1	allowed	normal	see 4.2.2.7
3163	liquefied gas, n.o.s.	see mawp definition in 6.7.3.1	allowed	normal	see 4.2.2.7
3220	pentafluoroethane (refrigerant gas r 125)	34.4 30.8 27.5 24.5	allowed	normal	0.87
3252	difluoromethane (refrigerant gas r 32)	43.0 39.0 34.4 30.5	allowed	normal	0.78
3296	heptafluoropropane (refrigerant gas r 227)	16.0 14.0 12.5 11.0	allowed	normal	1.20
3297	ethylene oxide and chlorotetrafluoroethane mixture, with not more than 8.8% ethylene oxide	8.1 7.0 7.0 7.0	allowed	normal	1.16

t50 portable tank instruction (cont'd) t50 this portable tank instruction applies to non-refrigerated liquefied gases and chemicals under pressure (un nos. 3500, 3501, 3502, 3503, 3504 and 3505). the general provisions of section 4.2.2 and the requirements of section 6.7.3 shall be met.
un no.	non-refrigerated liquefied gases	max. allowable working pressure (bar): small; bare; sunshield; insulated; respectively a	openings below liquid level	pressure- relief requirementsb(see 6.7.3.7)	maximum filling ratio
3298	ethylene oxide and pentafluoroethane mixture, with not more than 7.9% ethylene oxide	25.9 23.4 20.9 18.6	allowed	normal	1.02
3299	ethylene oxide and tetrafluoroethane mixture, with not more than 5.6% ethylene oxide	16.7 14.7 12.9 11.2	allowed	normal	1.03
3318	ammonia solution, relative density less than 0.880 at 15 °c in water, with more than 50% ammonia	see mawp definition in 6.7.3.1	allowed	see 6.7.3.7.3	see 4.2.2.7
3337	refrigerant gas r 404a	31.6 28.3 25.3 22.5	allowed	normal	0.84
3338	refrigerant gas r 407a	31.3 28.1 25.1 22.4	allowed	normal	0.95
3339	refrigerant gas r 407b	33.0 29.6 26.5 23.6	allowed	normal	0.95
3340	refrigerant gas r 407c	29.9 26.8 23.9 21.3	allowed	normal	0.95
3500	chemical under pressure, n.o.s.	see mawp definition in 6.7.3.1	allowed	see 6.7.3.7.3	tp43c
3501	chemical under pressure, flammable, n.o.s.	see mawp definition in 6.7.3.1	allowed	see 6.7.3.7.3	tp4c
3502	chemical under pressure, toxic, n.o.s.	see mawp definition in 6.7.3.1	allowed	see 6.7.3.7.3	tp4c
3503	chemical under pressure, corrosive, n.o.s.	see mawp definition in 6.7.3.1	allowed	see 6.7.3.7.3	tp4c
3504	chemical under pressure, flammable, toxic, n.o.s.	see mawp definition in 6.7.3.1	allowed	see 6.7.3.7.3	tp4c
3505	chemical under pressure, flammable, corrosive, n.o.s.	see mawp definition in 6.7.3.1	allowed	see 6.7.3.7.3	tp4c

a "small" means tanks having a shell with a diameter of 1.5 m or less; "bare" means tanks having a shell with a diameter of more than 1.5 m without insulation or sun shield (see 6.7.3.2.12); "sunshield" means tanks having a shell with a diameter of more than 1.5 m with sun shield (see 6.7.3.2.12); "insulated" means tanks having a shell with a diameter of more than 1.5 m with insulation (see 6.7.3.2.12); (see definition of "design reference temperature" in 6.7.3.1).

b the word "normal" in the pressure relief requirements column indicates that a frangible disc as specified in

6.7.3.7.3 is not required.

c for un nos. 3500, 3501, 3502, 3503, 3504 and 3505, the degree of filling shall be considered instead of the maximum filling ratio.

t75

portable tank instruction

t75

this portable tank instruction applies to refri ovisions of section 4.2.3 and

the requirements of section 6.7.4 shall be met.