REGULATIONS
93
pointed out that such drums have been in use in North America since 1936 or before for chlorine and sulphur dioxide without any problems. The US supported this argument, as did Australia. The ISO representative said that,
after careful consideration, its technical committee had decided to rule out the use of such drums for corrosive substances on the basis of technical arguments that were well founded from a safety standpoint, and to promote the use of new products affording the level of safety currently appropriate. The matter was put to the vote and, in the end, it was decided to adopt the new reference. As a result, two updated standards will be
referenced in the table in 6.2.2.1.1: - ISO 1118:2015 Gas cylinders – Non-refillable metallic gas cylinders – Specification and test methods; and
- ISO 11120:2015 Gas cylinders – Refillable seamless steel tubes of water capacity between 150 l and 3000 l – Design, construction and testing. The 1999 version of ISO 11120 may be used until 31 December 2022. The third standard required a different
approach, involving a new 6.2.2.1.8: The following standard applies for the design, construction and initial inspection and test of UN pressure drums, except that inspection requirements related to the conformity assessment system and approval shall be in accordance with 6.2.2.5:
Reference Title ISO 21172-1:2015
Gas cylinders – Welded steel pressure drums up to 3000 litres capacity for the transport of gases – Design and construction – Part 1: Capacities up to 1000 litres
Applicable for Manufacture
Until further notice
the proposed amendments to the provisions for closures of pressure receptacles agreed by a working group established under the auspices of the Joint Meeting. This drew an informal document from
CGA and the two associations agreed to work together to develop a revised paper at a later session. • An informal document from Germany followed up on a joint paper with France that had been discussed at the previous session. It dealt with the transport of gas tanks for motor vehicles, which occasionally have to be carried with gas, particularly if they are going for repair, disposal or recycling. Provisions have already been inserted in RID/ADR/ADN but not for maritime transport so it would be useful to have them in the Model Regulations. This idea drew the support of organisations representing automotive manufacturers. The Sub-committee discussed the
proposal and had a number of questions for the German delegate, who offered to amend the proposal for the next session in light of the comments made.
MISCELLANEOUS ITEMS • The UK returned with another document to find a solution to the problem of classifying dangerous goods in machinery or apparatus and articles that are not otherwise included in the Dangerous Goods List. The UK has worked hard to find a convenient and clear way to help consignors and competent authorities determine the appropriate classification for such items, including through the use of a flow diagram. More difficult has been drafting generic packing instructions for the vast range of articles involved. During a lunchtime working group it
• An informal paper from EIGA intended to give advance notice that a formal paper would be submitted at the next session, setting out all
became apparent that many delegations remain nervous about the application of the packing instructions, worried by the scope of what could be covered by this methodology and the unintended consequences of allowing consignors to make their own determinations on classification. The UK has agreed to work up the paper one more time, taking into account comments made during the working group, and if there is no further support from the Sub-committee the issue will be parked for the time being. »
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