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Practical Testing of Gas and Gas-meters

Nature volume 81, page 97 (22 July 1909) | Download Citation



THIS is a laboriously complete compilation of the various methods of testing gas for illuminating power, purity, chemical composition, and calorific value, and of proving the accuracy of the indications of gas-meters. The subject is one mainly of technical interest only, and very specially so even for that, and hardly suitable, therefore, for detailed consideration in these columns. An examination of the book shows how great a diversity of apparatus has been devised and thrust upon the innocent gas-producing world, and how gratuitous some of the diversity is. Where apparatus has been designed for official testings, the objection to protecting the manufacture by patents has given the constructor liberty to alter and “improve” or spoil an instrument, as the case may be.

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