Robert,

This has been discussed many, many times by me and others with Ken Butcher, Elizabeth Gentry, et al. at NIST.

Take this as a fact: NIST has absolutely nothing against the centimeter. They consider it to be equal in status to the millimeter, the decimeter, the dekameter, the hectometer, and the kilometer. The meter is distinguished from these only in that it is the base unit and is not prefixed.

The IEEE/ASTM Joint Committee for Maintaining SI 10 feels likewise.

The BIPM, CIPM, and CGPM feel likewise. To deprecate the centimeter is to deviate from the SI.

If you personally prefer to shun the use of the centimeter you certainly may. Those who like the centimeter can convert your favorite prefixed versions of the meter to centimeters readily.

regards,
Jim

Robert H. Bushnell wrote:

Does NIST have any comments, reports, policies or recommendations
about the use of centimeter?   Or not use of centimeter.

I want everyone to stop using centimeter.  How are we to convert to
SI if, when we hear centimeter we think, "now how many inches is that"?
Centimeter causes this problem because it is near the size of the inch.
This makes it hard to stop using inches.  People keep comparing
centimeters to inches.

Millimeter does not have this problem.

Can NIST help get rid of inches?

Thanks for your ideas.
            Robert Bushnell, PhD PE
            member USMA
            member ASTM





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