45
All these theories were investigated and discarded owing to contrary evidence. The theory of self-ignition of the film was formulated, and its theoretical basis is discussed in the report.
Evidence is offered, that a further consignment of 80 drums, found by the police, is material identical with the 144 drums found in No. 5 Wing On Godown.
This material was examined for the presence of unstable celluloid. Some unstable material was found therein,
8. GENERAL CONCLUSION.
In my opinion, therefore, the Wing On Godown fire was caused by self- ignition of a part of the washed film stored therein. This self-ignition was produced by long storage, in a hot climate, in closed containers, of washed film containing a small proportion of unstable celluloid.
(Signed)
RICHARD C. TERRY,
Assistant Government Chemist, '10th November, 1948.
APPENDIX 4.
CLASSIFICATION OF GOODS BY FIRE INSURANCE ASSOCIATION.
Insurance Rating
Commodity
Hazardous Ammonia (except Ammonium Cyanide,
Nitrate and Perchlorate)
Borneol
Camphene
Camphor
Candles Charcoal
Copra
Cotton (in fully pressed bales only) Creosote
Fats (excluding Butter or Margarine) Felt Roofing
Fireworks (indoor)
Ghee
Grasses of all kinds
Grease
Dangerous Goods Category
Mentioned Not Mentioned Specifically
Specifically
6
4 (1)
4 (1)
4 (2)
8
8
8
00 00 00
8
1 (7)
8
8
00 00 = 00 00 00
8
Gums
Gunny Bags (used)
Hay
Hemp (in fully pressed bales only) Jute (in fully pressed bales only)
Kapok (in fully pressed bales only) Lampblack
Lard
Lime, unslaked
Matting and Mat Bags
Mungo
Matches of all Kinds (in tin-lined cases
only)
Naphthalene
Oakum
Oiled Clothing, Paper or Umbrellas
8
8
00 00 00 00 00
1 (7)
00
8
4(2) or 5
00 00 00
LO 00 00
5
8
8
00 00
8
8
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