Space dilemmas for writing metric symbols and thousands separators

The BIPM’s SI brochure states “The numerical value always precedes the unit and a space is always used to separate the unit from the number.” and says that the space, not a comma or a dot, shall be used for the thousands separator. There are several space characters in computing, but the brochure does not state what kind of space you should use when typing. Ideally, you would use a non-breaking space to ensure that no line break separates the numerical value from the unit. Users face the same issue when using a space for the thousands separator.

Continue reading “Space dilemmas for writing metric symbols and thousands separators”

Metric Style Guide – has it had any effect?

Despite the best efforts of UKMA to promote correct usage, the writing of metric symbols leaves much to be desired. Former UKMA Chair Robin Paice reflects on the impact of the UKMA’s Metric Style Guide since its publication, evaluates other style guides, comments on the teaching of measurement units in schools and makes suggestions for UKMA’s committee to improve the situation.

Continue reading “Metric Style Guide – has it had any effect?”

BIPM and OIML issued joint press release and Directors’ message to mark World Metrology Day

20 May 2023 was World Metrology Day, commemorating the anniversary of the signing of the Metre Convention in 1875. To mark the occasion, the International Bureau of Weights and Measures (BIPM) and the International Organization of Legal Metrology (OIML) issued a joint press release and Directors’ message.

Continue reading “BIPM and OIML issued joint press release and Directors’ message to mark World Metrology Day”

First new SI prefixes for over 30 years

The International Bureau of Weights and Measures (BIPM) has formally approved the use of four new SI prefixes to meet the growing needs of science, computing and the increasing amount of online data and to prevent the adoption of unofficial prefix names. The approval of the new prefixes was one of the resolutions of the 27th General Conference on Weights and Measures, which took place on 15-18 November 2022.

Continue reading “First new SI prefixes for over 30 years”

Major shake-up of the SI

One of our regular contributors, Ronnie Cohen, has followed up on Martin Vlietstra’s article about the “new kilogram”, with a summary of the forthcoming changes to SI. It proved difficult to create some of the symbols used by SI in the text editor used by Metric Views, and readers who require the full story may wish to visit https://www.bipm.org .

Continue reading “Major shake-up of the SI”

UKMA launches Measurement Units Style Guide

In an attempt to bring about some improvement in the sloppy and inconsistent way in which metric units are often written, the UK Metric Association has today (5 July 2012) published a “Measurement Units Style Guide”.  Aimed at anybody who uses metric units in their writing, the Guide is available in both hard copy and as a free download from the UKMA website.

Continue reading “UKMA launches Measurement Units Style Guide”