Connections for foreign cylinder pressure regulators Gas type Country Oxygen Acetylene CO₂ Argon Hydrogen Nitrogen Australia – also for argon and nitrogen Belgium Denmark, Norway, Croatia, Czech Republic, Slovakia, Slovenia Denmark, Norway, Croatia, Czech Republic, Slovakia, Slovenia France, Spain, Portugal, Greece, North Africa Great Britain, Egypt, Asia, South Africa, Arabia also for Argon and nitrogen Italy, Cyprus The Netherlands Sweden, Norway, Finland, Greece, Turkey Switzerland USA, South America Australia – also for hydrogen Belgium Denmark, Sweden, Norway, Finland, South America Germany, Greece, Austria, Poland, Czech Republic Switzerland, Slovakia, Turkey, Cyprus France, Spain Portugal, North Africa France, Spain Portugal, North Africa Great Britain, Egypt, Asia, South Africa, Arabia Italy The Netherlands USA, Asia Switzerland Denmark, Norway, Slovenia Czech Republic, Slovakia Italy Sweden Australia Germany, Belgium, Finland, Austria, Poland, Switzerland France, Spain, Portugal, Greece North Africa – also for argon and nitrogen Great Britain, Egypt, Asia, South Africa, Arabia Belgium, Netherlands USA, South America Switzerland Denmark, Norway, Slovenia Germany, Austria, Poland, Switzerland, Czech Republic Denmark, Norway Italy Netherlands, Sweden USA, South America Finland Germany, Finland, Norway, Austria, Poland, Sweden, Switzerland, Slovakia, Czech Republic France, Spain, Portugal, Greece, North Africa Great Britain, Egypt, Asia, South Africa, Arabia Italy The Netherlands Denmark USA, South America Denmark, Norway The Netherlands Sweden USA, South America Germany, Finland, Austria, Poland, Switzerland, Slovakia, Czech Republic Italy CONNECTION TYPES 3.14 AS2473, type 10 NBN 226 DS727.2 DS727.2 NFE 29656 BS342-1, No. 3 UNI 4406 NEN3268 RI2 SMS 690 Connection ET G5/8RHk ET G5/8RHk UN W21.8x1/14RHf UN W21.8x1/14RHf ET W22.91x1/14RHk ET G5/8RHk UN W21.7x1/14 RHf ET G5/8RHk UN W21.8x1/14RHf SN 219 505 Bl. 2 UN G3/4RHf CGA 540 UN 0.908x1/14 RHk AS2473, type 20 NBN 226, type D DS727.7 DIN 477-1, No. 3 NFA 84421, type 2 NFE 29658 BS342-1, No. 2 UNI 4411 NEN3268 type 4 ET G5/8LHk yoke ET G3/4RHf yoke yoke ET G5/8LHk ET G5/8A-LHk yoke yoke CGA 510 ET 0.880x1/14LHk SN 219 505 Bl. 6 ET G3/4RHf DS727.2 UN W21.8x1/14RHf DIN 477-1, No. 9 UN G3/4RHf UNI 4406 SMS 690 AS2473, type 30 DIN 477-1, No. 6 UN W21.7x1/14 RHf UN W21.8x1/14RHf UN 0.860x1/14RHf UN W21.8x1/14 RHf NFE29650 Type C UN W21.7x1/14RHk/f BS342-1, No. 8 NEN RU1 CGA 320 SN 219 505 Bl. 7 DIN 477-1, No. 1 NFE29650 Type E BS342-1, No. 4 UNI 4405 NEN LU1 DS727.1 CGA 350 DIN 477-1, No. 1 UN 0.860x1/14RHf UN W21.8x1/14 RHf UN 0.830x1/14RHf UN W21.8x1/14 RHf UN G3/4RHf UN W21.8x1/14 RHf UN W24.32x1/14RHf ET W24.5x1/14RHk UN W24.32x1/14RHf ET 0.960 x 1/14 RHk UN W24.32x1/14RHf UN W21.8x1/14LHf NFE29650 Type E UN W21.7x1/14LHk BS342-1, No. 4 ET G5/8A-LHk UNI 4405 NEN LU1 DS727.1 CGA 350 DS727.3 NEN RU3 SS2238, type A CGA 580 DIN 477-1, No. 10 UNI 4409 UN W20x1/14LHf UN W21.8x1/14LHf UN W21.8x1/14LHf UN 0.830x1/14RHk UN W24.32x1/14RHf UN W24.32x1/14RHf UN W24.32x1/14RHf ET 0.960 x 1/14 RHk UN W24.32x1/14RHf ET W21.7x1/14RHf 106