178 This entry should be used only when no other appropriate entry exists in the list, and only with the approval of the competent authority of the country of origin.
181 Packages containing this type of subsidiary should bear the "EXPLOSIVE" subsidiary risk label unless the competent authority of the country of origin has permitted this label to be dispensed with for the speccific packing employed because test date have proved that the substance in this packaging does not exhibit explosive behaviour (5.4.1.5.2). The provision of 7.2.7.2 should also be considered.
182 The group of alkali metals includes lithium, sodium, potassium, rubidium and caesium .
183 The group of alkaline earth metals includes magnesium, calcium, strontium and barium .
194 The control and emergency temperature, if any, and the generic entry number for each of the currently assigned self-reactive substances are given in 2.4.2.3.2.3.
195 For certain organic peroxides types B or C, a smaller packaging than allowed by packing methods OP5 or OP6 respectively has to be used (see 4.1.7 and 2.5.3.2.4).
199 Lead compounds which, when mixed in a ratio of 1:100 with 0.07M hydrochloric acid and stirred for one hour at a temperature of 23℃±2℃, exhibit a solubility of 5% or less are considered insoluble (see ISO 3711:1990).
204 Articles containing smoke-producing substance(s) corrosive according to the criteria for Class8 should be labelled with a "CORROSIVE" subsidiary risk label.
223 If the chemical or physical properties of a substance covered by this description are such that when tested it does not meet the established defining criteria for the class or division listed in column(3), or any other class or division, it is not subject to the provisions of this Code except in the case of marine pollutant where 2.10.3 applies.
225 Fire extinguishers under this entry may include installed actuating cartridges (cartridges, power device of division 1.4C or 1.4S), without changing the classification of Class 2.2 provided the total quantity of deflagrating (propellant) explosives does not exceed 3.2g per extinguishing units.
242 Sulphur is not subject to the provisions of this Code when it is transported in quantities of less than 400kg per package, or when it has been formed to a specific shape (such as, prills, granules, pellets, pastilles or flakes).
