(Reserved)
The actual holding time shall be determined for
each journey of a tank-container carrying a
refrigerated liquefied gas on the basis of the
following:
(a) The reference holding time for the
refrigerated liquefied gas to be carried (see
6.8.3.4.10) as indicated on the plate referred
to in 6.8.3.5.4;
(b) The actual filling density;
(c) The actual filling pressure;
(d) The lowest set pressure of the pressure
limiting device(s);
(e) The deterioration of the insulation4.
NOTE: ISO 21014:2006 ‘Cryogenic vessels –
Cryogenic insulation performance’ details methods
of determining the insulation performance of
cryogenic vessels and provides a method of
calculating the holding time.
The date at which the actual holding time ends shall
be entered in the transport document (see 5.4.1.2.2.
(d)).
Tank-containers shall not be offered for carriage:
(a) In an ullage condition liable to produce an
unacceptable hydraulic force due to surge
within the shell;
(b) When leaking;
(c) When damaged to such an extent that the
integrity of the tank-container or its lifting or
securing arrangements may be affected;
(d) Unless the service equipment has been
examined and found to be in good working
order;
(e) Unless the actual holding time for the
refrigerated liquefied gas being carried has
been determined;
(f) Unless the duration of carriage, after taking
into consideration any delays which might be
encountered, does not exceed the actual
holding time;
(g) Unless the pressure is steady and has been
lowered to a level such that the actual holding
time may be achieved4.
|
Part |
Description |
Tank code |
1 |
Types of tank |
L = tank for substances in the liquid state (liquids or solids handed over for carriage in the molten state);
S = tank for substances in the solid state (powdery or granular). |
2 |
Calculation pressure |
G = minimum calculation pressure according to the general requirements of 6.8.2.1.14; or
1.5; 2.65; 4; 10; 15 or 21= minimum calculation pressure in bar (see 6.8.2.1.14). |
3 |
Openings (see 6.8.2.2.2) |
A = tank with bottom-filling or bottom-discharge openings with 2 closures; |
B = tank with bottom-filling or bottom-discharge openings with 3 closures;
C = tank with top-filling and discharge openings with only cleaning openings below the surface of the liquid;
D = tank with top-filling and discharge openings with no openings below the surface of the liquid. |
||
4 |
Safety valves/devices |
V = tank with a breather device, according to 6.8.2.2.6, but no device protecting against the propagation of a flame; or non-explosion pressure shock resistant tank ;
F = tank with a breather device, according to 6.8.2.2.6, fitted with a device protecting against the propagation of a flame; or explosion pressure shock resistant tank ;
N = tank without a breather device according to 6.8.2.2.6 and not hermetically closed; |
B = tank with bottom-filling or bottom-discharge openings with 3 closures;
C = tank with top-filling and discharge openings with only cleaning openings below the surface of the liquid;
D = tank with top-filling and discharge openings with no openings below the surface of the liquid. |
Tank code |
Group of permitted substances |
||
Class |
Classification code |
Packing group |
|
LIQUIDS LGAV |
3 |
F2 |
III |
9 |
M9 |
III |
|
LGBV |
4.1 |
F2 |
II, III |
5.1 |
O1 |
III |
|
9 |
M6 |
III |
|
M11 |
III |
||
and groups of permitted substances for tank code LGAV |
|||
LGBF |
3 |
F1 |
II vapour pressure at 50 °C ≤ 1.1 bar |
F1 |
III |
||
D |
II vapour pressure at 50 °C ≤ 1.1 bar |
||
D |
III |
||
and groups of permitted substances for tank codes LGAV and LGBV |
|||
L1.5BN |
3 |
F1 |
II vapour pressure at 50 °C > 1.1 bar |
F1 |
III flash-point < 23 °C, viscous, vapour pressure at 50 °C > 1.1 bar boiling point > 35 °C |
||
D |
II vapour pressure at 50 °C > 1.1 bar |
||
and groups of permitted substances for tank codes LGAV, LGBV and LGBF |
|||
L4BN |
3 |
F1 |
I, III boiling point ≤ 35 °C |
FC |
III |
||
D |
I |
||
5.1 |
O1 |
I, II |
|
OT1 |
I |
||
8 |
C1 |
II, III |
|
C3 |
II, III |
||
C4 |
II, III |
||
C5 |
II, III |
||
C7 |
II, III |
||
C8 |
II, III |
||
C9 |
II, III |
||
C10 |
II, III |
||
CF1 |
II |
||
CF2 |
II |
||
CS1 |
II |
||
CW1 |
II |
||
CW2 |
II |
||
CO1 |
II |
||
CO2 |
II |
||
CT1 |
II, III |
||
CT2 |
II, III |
||
CFT |
II |
||
9 |
M11 |
III |
and groups of permitted substances for tank codes LGAV, LGBV, LGBF and L1.5BN
Rationalized approach |
|||
Tank code |
Group of permitted substances |
||
Class |
Classification code |
Packing group |
|
L4BH |
3 |
FT1 |
II, III |
FT2 |
II |
||
FC |
II |
||
FTC |
II |
||
6.1 |
T1 |
II, III |
|
T2 |
II, III |
||
T3 |
II, III |
||
T4 |
II, III |
||
T5 |
II, III |
||
T6 |
II, III |
||
T7 |
II, III |
||
TF1 |
II |
||
TF2 |
II, III |
||
TF3 |
II |
||
TS |
II |
||
TW1 |
II |
||
TW2 |
II |
||
TO1 |
II |
||
TO2 |
II |
||
TC1 |
II |
||
TC2 |
II |
||
TC3 |
II |
||
TC4 |
II |
||
TFC |
II |
||
6.2 |
I3 |
II |
|
I4 |
|||
9 |
M2 |
II |
|
and groups of permitted substances for tank codes LGAV, LGBV, LGBF, L1.5BN and L4BN |
|||
L4DH |
4.2 |
S1 |
II, III |
S3 |
II, III |
||
ST1 |
II, III |
||
ST3 |
II, III |
||
SC1 |
II, III |
||
SC3 |
II, III |
||
4.3 |
W1 |
II, III |
|
WF1 |
II, III |
||
WT1 |
II, III |
||
WC1 |
II, III |
||
8 |
CT1 |
II, III |
|
and groups of permitted substances for tank codes LGAV, LGBV, LGBF, L1.5BN, L4BN and L4BH |
|||
L10BH |
8 |
C1 |
I |
C3 |
I |
||
C4 |
I |
||
C5 |
I |
||
C7 |
I |
||
C8 |
I |
||
C9 |
I |
||
C10 |
I |
||
CF1 |
I |
||
СF2 |
I |
||
CS1 |
I |
||
СW1 |
I |
||
СW2 |
I |
||
CO1 |
I |
||
CO2 |
I |
||
CT1 |
I |
||
CT2 |
I |
||
COT |
I |
||
and groups of permitted substances for tank codes LGAV, LGBV, LGBF, L1.5BN, L4BN, and L4BH |
Rationalized approach |
|||
Tank code |
Group of permitted substances |
||
Class |
Classification code |
Packing group |
|
L10CH |
3 |
FT1 |
I |
FT2 |
I |
||
FC |
I |
||
FTC |
I |
||
6.1* |
T1 |
I |
|
T2 |
I |
||
T3 |
I |
||
T4 |
I |
||
T5 |
I |
||
T6 |
I |
||
T7 |
I |
||
TF1 |
I |
||
TF2 |
I |
||
TF3 |
I |
||
TS |
I |
||
TW1 |
I |
||
TO1 |
I |
||
TC1 |
I |
||
TC2 |
I |
||
TC3 |
I |
||
TC4 |
I |
||
TFC |
I |
||
TFW |
I |
||
and groups of permitted substances for tank codes LGAV, LGBV, LGBF, L1.5BN, L4BN, L4BH, and L10BH |
|||
* Substances with an LC50 lower than or equal to 200 ml/m3 and saturated vapour concentration greater than or equal to 500 LC50 shall be assigned to tank code L15CH. |
|||
L10DH |
4.3 |
W1 |
I |
WF1 |
I |
||
WT1 |
I |
||
WC1 |
I |
||
WFC |
I |
||
5.1 |
OTC |
I |
|
8 |
CT1 |
I |
|
and groups of permitted substances for tank codes LGAV, LGBV, LGBF, L1.5BN, L4BN, L4BH, L4DH, L10BH and L10CH |
|||
L15CH |
3 |
FT1 |
I |
6.1** |
T1 |
I |
|
T4 |
I |
||
TF1 |
I |
||
TW1 |
I |
||
TO1 |
I |
||
TC1 |
I |
||
TC3 |
I |
||
TFC |
I |
||
TFW |
I |
||
and groups of permitted substances for tank codes LGAV, LGBV, LGBF, L1.5BN, L4BN, L4BH, L10BH and L10CH |
|||
** Substances with an LC50 lower than or equal to 200 ml/m3 and saturated vapour concentration greater than or equal to 500 LC50 shall be assigned to this tank code. |
|||
L21DH |
4.2 |
S1 |
I |
S3 |
I |
||
SW |
I |
||
ST3 |
I |
||
and groups of permitted substances for tank codes LGAV, LGBV, LGBF, L1.5BN, L4BN, L4BH, L4DH, L10BH, L10CH, L10DH and L15CH |
Rationalized approach |
|||
Tank code |
Group of permitted substances |
||
Class |
Classification code |
Packing group |
|
SOLIDS SGAV |
4.1 |
F1 |
III |
F3 |
III |
||
4.2 |
S2 |
II, III |
|
S4 |
III |
||
5.1 |
O2 |
II, III |
|
8 |
C2 |
II, III |
|
C4 |
III |
||
C6 |
III |
||
C8 |
III |
||
C10 |
II, III |
||
СT2 |
III |
||
9 |
M7 |
III |
|
M11 |
II, III |
||
SGAN |
4.1 |
F1 |
II |
F3 |
II |
||
FT1 |
II, III |
||
FT2 |
II, III |
||
FC1 |
II, III |
||
FC2 |
II, III |
||
4.2 |
S2 |
II |
|
S4 |
II, III |
||
ST2 |
II, III |
||
ST4 |
II, III |
||
SC2 |
II, III |
||
SC4 |
II, III |
||
4.3 |
W2 |
II, III |
|
WF2 |
II |
||
WS |
II, III |
||
WT2 |
II, III |
||
WC2 |
II, III |
||
5.1 |
O2 |
II, III |
|
OT2 |
II, III |
||
OC2 |
II, III |
||
8 |
C2 |
II |
|
С4 |
II |
||
С6 |
II |
||
С8 |
II |
||
С10 |
II |
||
CF2 |
II |
||
CS2 |
II |
||
CW2 |
II |
||
CO2 |
II |
||
CT2 |
II |
||
9 |
M3 |
III |
|
and groups of permitted substances for tank codes SGAV |
|||
SGAH |
6.1 |
T2 |
II, III |
T3 |
II, III |
||
T5 |
II, III |
||
T7 |
II, III |
||
T9 |
II |
||
TF3 |
II |
||
TS |
II |
||
TW2 |
II |
||
TO2 |
II |
||
TC2 |
II |
||
TC4 |
II |
||
9 |
M1 |
II, III |
|
and groups of permitted substances for tanks codes SGAV and SGAN |
Rationalized approach |
|||
Tank code |
Group of permitted substances |
||
Class |
Classification code |
Packing group |
|
S4AH |
6.2 |
I3 |
II |
9 |
M2 |
II |
|
and groups of permitted substances for tanks codes SGAV, SGAN and SGAH |
|||
S10AN |
8 |
C2 |
I |
C4 |
I |
||
C6 |
I |
||
C8 |
I |
||
C10 |
I |
||
CF2 |
I |
||
CS2 |
I |
||
CW2 |
I |
||
CO2 |
I |
||
CT2 |
I |
||
and groups of permitted substances for tank codes SGAV and SGAN |
|||
S10AH |
6.1 |
T2 |
I |
T3 |
I |
||
T5 |
I |
||
T7 |
I |
||
TS |
I |
||
TW2 |
I |
||
TO2 |
I |
||
TC2 |
I |
||
TC4 |
I |
||
and groups of permitted substances for tank codes SGAV, SGAN, SGAH and S10AN |
Rationalized approach |
|||
Tank code |
Group of permitted substances |
||
Class |
Classification code |
Packing group |
|
S4AH |
6.2 |
I3 |
II |
9 |
M2 |
II |
|
and groups of permitted substances for tanks codes SGAV, SGAN and SGAH |
|||
S10AN |
8 |
C2 |
I |
C4 |
I |
||
C6 |
I |
||
C8 |
I |
||
C10 |
I |
||
CF2 |
I |
||
CS2 |
I |
||
CW2 |
I |
||
CO2 |
I |
||
CT2 |
I |
||
and groups of permitted substances for tank codes SGAV and SGAN |
|||
S10AH |
6.1 |
T2 |
I |
T3 |
I |
||
T5 |
I |
||
T7 |
I |
||
TS |
I |
||
TW2 |
I |
||
TO2 |
I |
||
TC2 |
I |
||
TC4 |
I |
||
and groups of permitted substances for tank codes SGAV, SGAN, SGAH and S10AN |
Hierarchy of tanks
Tanks with tank codes different from those indicated in this table or in Table A of Chapter 3.2 may also be used provided that any element (number or letter) of parts 1 to 4 of these tank codes correspond to a level of safety at least equivalent to the corresponding element of the tank code indicated in Table A of Chapter 3.2, according to the following increasing order:
Part 1: Types of tanks S L
Part 2: Calculation pressure
G 1.5 2.65 4 10 15 21 bar
Part 3: Openings A B C D
Part 4: Safety valves/devices V F N H
For example:
A tank with the tank code L10CN is authorized for the carriage of a substance to which the tank code L4BN has been assigned;
A tank with the tank code L4BN is authorized for the carriage of a substance to which the tank code SGAN has been assigned.
E: The hierarchy does not take account of any special provisions for each entry (see 4.3.5 and
.8.4).