UNITED

NATIONS	ST

Secretariat	Distr.

GENERAL

ST/SG/AC.10/1998/25

22 September 1998

Original: ENGLISH
COMMITTEE OF EXPERTS ON THE

TRANSPORT OF DANGEROUS GOODS

(Twentieth session,

Geneva, 7-16 December l998,

agenda item 2 (c))

WORK OF THE SUB-COMMITTEE OF EXPERTS

ON THE TRANSPORT OF DANGEROUS GOODS

Draft amendments to the Recommendations on the Transport of Dangerous Goods

Segregation requirements of explosive articles

of compatibility C, D, E and G

Transmitted by the Expert from the United States of America

Introduction

1.	At the fifteenth session, the Expert from the United States proposed to amend the segregation requirements for explosives of Compatibility Groups C, D, E and G (ST/SG/AC.10/C.3/1998/37). Several experts commented that the scope of the proposal was too broad. On that basis the expert from the United States of America agreed to reconsider the proposal taking into account similar provisions in the IMDG Code and RID and ADR.

2.	Currently, the UN Model Regulations and ICAO Technical Instructions do not permit explosive articles of Compatibility Groups C, D, E and G to be transported together while the IMDG Code (Table 2, Page 1015) and ADR (Marginal 11403) do permit these explosive articles to be transported together. The purpose of this proposal is to provide consistency to the segregation requirements among UN Model regulations and the modal regulations.

GE.98-

Proposal

3.	It is proposed that Paragraph 7.1.3.1.3 be revised to read as follows:

"7.1.3.1.3	Goods in Compatibility Groups C, D, and E are permitted to be carried together in the same unit load or transport unit provided the over-all classification code is determined in accordance with the classification procedures in 2.1.3. Articles in compatibility group G (other than fireworks) are permitted to be transported together with articles of compatibility groups C, D and E. The appropriate division is determined in accordance with 7.1.3.1.2(b). Any combination of articles in Compatibility Groups C, D, E and G is assigned to Compatibility Group E. Any combination of substances in Compatibility Groups C and D shall be assigned to the most appropriate of the compatibility groups shown in 2.2.2.1.1, taking cognizance of the predominant characteristics of the combined load.

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