Skip to main content

Model Engineering and Metrication

Council Directive 80/181/EEC of 20 December 1979 on the approximation of the laws of the Member States relating to units of measurement and on the repeal of Directive 71/354/EEC
is an EU directive that basically phases out most imperial measures apart from Appendix one (of something else) which is:
Imperial Units Of Measurement Available For Primary Use After 1 October 1995
Some imperial units remain available as the primary system of measurement for certain specific uses, either without time limit or no later than 31 December 1999. The units and their uses are as follows:
a. Imperial units of measurement to be used without time limit.
i. pint for sales of draught of beer or cider and for milk sold in returnable containers;
ii. mile, yard, foot and inch for road traffic signs and for related distance and speed measurements;
iii. foot in aircraft heights and other units used in the field of air and sea transport and rail traffic, which have been laid down in international conventions etc (see Article 2 of Directive 80/181);
iv. nautical mile and knot for sea and air traffic;
v. troy ounce for transactions in precious metals;
vi. acre for land registration

What the legislation means is that if you have something that is for example a 1/4 inch bolt. It has to be described as a 63.5mm bolt, but must not even have as a subsidiary description 1/4 inch. Whereas it is reasonable to have equipment designed with metric units, there is a lot of equipment (old steam trains for example) that are designed with imperial units.

This is a situation in which the drive for bureaucratic uniformity is just silly. Why people have to be forced not to describe a 1/4 inch bolt as such or even to have a ruler with inches on it is beyond me.

In practise this will cause problems within the model engineering and heritage engineering sectors. I have, therefore, tabled a motion and written to the DTI suggesting a bit of commonsense is used.

Comments

Popular posts from this blog

Its the long genes that stop working

People who read my blog will be aware that I have for some time argued that most (if not all) diseases of aging are caused by cells not being able to produce enough of the right proteins. What happens is that certain genes stop functioning because of a metabolic imbalance. I was, however, mystified as to why it was always particular genes that stopped working. Recently, however, there have been three papers produced: Aging is associated with a systemic length-associated transcriptome imbalance Age- or lifestyle-induced accumulation of genotoxicity is associated with a generalized shutdown of long gene transcription and Gene Size Matters: An Analysis of Gene Length in the Human Genome From these it is obvious to see that the genes that stop working are the longer ones. To me it is therefore obvious that if there is a shortage of nuclear Acetyl-CoA then it would mean that the probability of longer Genes being transcribed would be reduced to a greater extent than shorter ones.