HC Deb 22 February 1977 vol 926 cc538-9W
Mrs. Dunwoody

asked the Secretary of State for Prices and Consumer Protection if he is satisfied that the new SI symbols are not prone to errors of conversion, particularly in the use of zombie boxes—electronic calculators—with consequent danger where high pressures are involved.

Mr. John Fraser

One of the reasons for adopting the world-wide system of units (SI) is to remove the problem of conversion of units which United Kingdom industry is facing now and has faced for many years. Any conversion from one system of units into another has always been a potential source of error but the use of electronic calculators probably reduces the chance of errors rather than increasing it. The SI unit for use where high pressures are involved should be carefully chosen, and preferably all high pressures should be expressed in the same SI unit and, hence, symbol. In designing new plant, there should be no necessity for conversion from SI units since the calculations should be in those units.

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