Consumer Product Safety

Cassette Range

July 23, 2001

Accident of Plug of Cassette Range Device Bursting into Flames (Calling Attention.)

Accident information that gas was leaked from a plug portion (portion where a cassette in inserted) of the cassette range device, the plug explosively burst into flames, and a user got slightly burnt was reported to the National Institute of Technology and Evaluation (NITE).
The NITE performed tests for the accident case and the results are as follows.

1. Accident Occurrence Situations

When a pot was placed on a cassette range to ignite, the user smelt gas but continuously used it. 2 or 3 minutes later, suddenly a fire explosively started between the pot and the cassette range. Though the fire was instantly extinguished, a person cooking then got slightly burnt.

The accidental product, which was purchased 10 years ago was used approximately once a year and stored in a container box after the use.

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2. Origins of Accident

Based on the situation of the accident, the NITE observed the external appearance of the product causing the accident, confirmed the accident phenomenon, performed the airtight test, observed the governor (pressure regulator), and analyzed the material.
The result showed that a fine crack was found in the governor portion and the zinc base alloy, or the using material, contained considerable amount of impurities such as lead and tin. When there are many impurities contained in the zinc base alloy, the device will be corroded by the long use. The accident was judged to occur in such a manner that fine cracks were formed by the corrosion of the gas passage, and the gas leaked from them to be explosively burst into flames.

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3. Matters Required Attentions

To prevent the similar accident from occurring again, please confirm the type of the cassette range in use, and if it is the same type of the cassette range, by way of precaution, stop using it.

Product Name and Manufacturing Company
Product Name Manufactured Period Manufacturing Company 
Cassette Range (Irori [TK-2000]) From 1980 to1984 Taiyo Kogyo Co., Ltd.
(The company was already bankrupt.)

Contact us

 Risk Analysis and Public Relations Division  Product Safety Technology Center  National Institute of Technology and Evaluation
Phone number:+81-6-6612-2066
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Address:1-22-16, Nankokita, Suminoe-ku, Osaka-shi, Osaka 559-0034 Japan MAP