John wrote in 11515: >I don't think the BWMA actually states that the French use the term 4 pieds >8-1/2 pouces, but what they are trying to say is the French and others use >the same gauge as the British do and what ever they call it in millimetres, >it is still an imperial gauge. But, their lack of telling the whole story, >like not mentioning that livre and pfund are 500 g and not 454 g, or that >German pipe thread pitches may be copies of imperial sizes and the names are >imperial, but those are just trade names that don't reflect actual >dimensions. I'm sure Germans know as much about imperial as Americans know >about metric. The French certainly use British pipe sizes, but, if my memory is correct, they call a 1/2" pipe "un treize", and a 3/4" pipe "un dix-neuf". Joseph B. Reid 17 Glebe Road West Toronto M5P 1C8 Tel. 416 486-6071
