UNITED

NATIONS	ST

Secretariat	Distr.

GENERAL

ST/SG/AC.10/25/Add.4/Corr.1

21 June 1999

Original: ENGLISH

COMMITTEE OF EXPERTS ON THE

TRANSPORT OF DANGEROUS GOODS

REPORT OF THE COMMITTEE OF EXPERTS

ON ITS TWENTIETH SESSION

(7-16 December 1998)

Addendum 4

Revised Chapter 4.1 of the Model Regulations on the Transport of Dangerous Goods

Corrigendum

Page 11	The reference "4/" to footnote 4/ should be placed immediately after the figure "2" before the closing parenthesis, as this footnote applies only to 1A2, 1B2, 1N2, 3A2 and 3B2.

Page 24	P130, replace ", 0501 and 502:" by "and 0502:" at the end of the list of UN numbers in special packing provision PP67.

Page 55	P620, insert "other than for solid infectious substances," at the begining of (a)(iii) under the heading "Packagings meeting the requirements of Chapter 6.3 and approved accordingly consisting of:".

Page 62	IBC 02, delete special packing provision B2.

GE.99-

Page 67	IBC520, replace "32%" by "52%" in the description of chemical name in the entry for "Di-tert-butyl peroxide" under UN 3109 and replace "+ 25 C" by "+ 20 C" in the column headed "Emergency temperature" for the entry of "Dimyristyl peroxydicarbonate, not more than 42%, stable dispersion, in water" under UN 3119.

IBC 520, under 3109, add the following new entry:

UN No	Organic peroxide	Type of IBC

1/	2/	Emergency

tempe-

rature
tert-Butyl hydroperoxide, not more than 72% with water

31A

1250

IBC 520, under 3119, add the following new entries:

UN No	Organic peroxide	Type of IBC

1/	2/	Emergency

tempe-

rature
tert-Butyl peroxyneodecanoate, not more than 32% in diluent type A

tert-Butyl peroxyneodecanoate, not more than 42%, stable dispersion, in water

Di-(3,5,5-trimethylhexanoyl) peroxide, not more than 52%, stable dispersion, in water

Cumyl peroxyneodecanoate, not more than 52%, stable dispersion, in water

1,1,3,3-Tetramethylbutyl peroxyneodecanoate, not more than 52%, stable dispersion, in water

Di-(2-ethylhexyl) peroxydicarbonate, not more than 52%, stable dispersion, in water

31A

31A

31A

31A

31A

31A

1250

1250

1250

1250

1250

1250

0 °C

- 5 °C

+ 10 °C

- 15 °C

- 5 °C

- 20 °C

+ 10 °C

+ 5 °C

+ 15 °C

- 5 °C

+ 5 °C

- 10 °C

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