4.1.1.10

liquids shall be filled only into packagings, including ibcs, which have an appropriate resistance to

the internal pressure that may develop under normal conditions of carriage. packagings and ibcs

marked with the hydraulic test pressure prescribed in 6.1.3.1 (d) and 6.5.2.2.1, respectively shall be

filled only with a liquid having a vapour pressure:

(a) such that the total gauge pressure in the packaging or ibc (i.e. the vapour pressure of the

filling substance plus the partial pressure of air or other inert gases, less 100 kpa) at 55 °c,

determined on the basis of a maximum degree of filling in accordance with 4.1.1.4 and a filling

temperature of 15 °c, will not exceed two-thirds of the marked test pressure; or

(b) at 50 °c less than four-sevenths of the sum of the marked test pressure plus 100 kpa; or

ibcs intended for the carriage of liquids shall not be used to carry liquids having a vapour pressure of

more than 110kpa (1.1 bar) at 50 °c or 130kpa (1.3 bar) at 55 °c.

examples of required marked test pressures for packagings, including ibcs,

calculated as in 4.1.1.10 (c)

name

class

packing group

vp55

(kpa)

vp55 × 1.5

(kpa)

(vp55 × 1.5)

minus 100 (kpa)

required minimum test pressure gauge under 6.1.5.5.4(c) (kpa)

minimum test pressure (gauge) to be marked on the packaging (kpa)

2056

2247

1593

1155

tetrahydrofuran n-decane dichloromethane diethyl ether

6.1

iii

1.4

164

199

105

2.1

246

299

-97.9

146

199

100

146

199

100

150

250

note 1: for pure liquids the vapour pressure at 55 °c (vp55) can often be obtained from scientific

tables.

note 2: the table refers to the use of 4.1.1.10 (c) only, which means that the marked test pressure

shall exceed 1.5 times the vapour pressure at 55 °c less 100 kpa. when, for example, the test pressure

for n-decane is determined according to 6.1.5.5.4 (a), the minimum marked test pressure may be

lower.

note 3: for diethyl ether the required minimum test pressure under 6.1.5.5.5 is 250 kpa.