The difference between 0.4mm and 1/64 inch is 0.008 LDU. The ostensible tolerance on bricks is 0.06 LDU. It doesn't matter.
This has always struck me as an attempt by the two countries that have kept a patently stupid measurement system for historic reasons (OK there are others, but they barely have internet) to assert some claim on measurements. Why don't we follow the language rules and declare that everything uses Australian units (since Australia is not on of those two countries, that means metric).
Tim
P.S. Tongue slightly in cheek here. But slightly not.
edit: that should have read "mostly in cheek"
This has always struck me as an attempt by the two countries that have kept a patently stupid measurement system for historic reasons (OK there are others, but they barely have internet) to assert some claim on measurements. Why don't we follow the language rules and declare that everything uses Australian units (since Australia is not on of those two countries, that means metric).
Tim
P.S. Tongue slightly in cheek here. But slightly not.
edit: that should have read "mostly in cheek"