EN and DIN

Nothing much.... the DIN standards are the old German standards similar to our BS standards in the UK. the EN are as you say the European Norms standards that in Europe is the one we all work to, or should!...

John.

Thank you John,

If my understanding is correct DIN standards are no longer used in Germany & in Europe.

I have still some more query.

Whether all the european countries are following these EN norms for all of their projects

Whether EN norms is only the modification of old German standards or it does include the requirements / standards specifed by the other European countries also.

thanks in advance

arbaskaran

<Whether all the european countries are following these EN norms for all of their projects>

It's difficult to ascertain. EN standards are intended to be a common 'language' (for want of a better word) encompassing best practice and pan-European compatibility.

One can deviate from them, of course, and then one is very much on one's own...

Hello arbaskaran

I'm not familiar with many of them, but not all EN standards are based on DIN. Pipe flanges follow DIN 2526 but pipe threads for example follow British stds, BS 21. It would be nice to think EN incorporate the best bits of various national stds.

Does anybody know whether EN and ISO stds are the same?

There was a BS for testing centrifugal pumps, BS 5316 which I believe was incorporated into ISO 2548. If so it's a pity as in my opinion BS 5316 is a very poor std. I had a discussion with BSI about it some years back but didn't get any sensible answers. Better to base it on American std ANSI/HI 1.6-1994 which is much better (apart from not being metric!)

Codey

My understanding of EN numbers when relating to steel was in fact to do with the British Government having to bring in standardisation when building subcomponents of military hardware in many locations during WW2. It originally designated different grades of steel into Emergency Numbers (e.g. 43c). This standard has hung on for a long time but is being fased out for a different system that I can't remember of the top of my head. It would be confusing in my mind to have a new EN standard!

HI,

DEAR SIR,

BY ENLARGE, EN AND DIN ARE SIMILAR BUT NOT THE SAME,AS PER ME IT IS COMBINATION OR AMALGAMATION OF ALL EUROPEAN CONTRIES' STANDARDS SUCH AS 'DIN' GERMAN, 'BS' UK, 'NFE' FRENCH AND SO ON.

I THINK LIKE CURRENCY IS NOW COMMON IN EUROP LIKE WISE INTENSION MUST BE TO HAVE COMMON STANDARD FOR ALL EUROP,IN AL WALKS OF LIFE.

IN CASE OF FLANGES,RAISED FACE HIGHT IS DIFFRANT FROM 2.0MM TO 4.0MM AS PER DIFF.SIZE AND PERSSURE RATING. BUT EN GIVES 2.0 MM FOR ALL SIZES AND RATING.LIKE WISE THERE IS LITTLE DIFFRANCE IN DIN & EN.I FOUND SOME MINOR DIFFRANCESES IN OTHER DIMENSIONS ALSO BUT THOSE ARE SOME TIMES AS PER BS OR OTHER EUROPEAN STDS.

THANK YOU.

V.D.DEODHAR.