Instrument Process Impulse Line - Fittings with tapered threads (iso-metric)

[barok15]

All catalogs of major vendor for compression fitting showing fittings in INCH as per NPT, BSPP (ISO 228) and BSPT (ISO 7-1) standard.

Which standard cover the Metric Tapered Threads?

 

[juergenwt]

Look here:Link