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<strong>IGC</strong> Part 1 Annex 1A Valve Outlets for Toxic Gases DOC 97/03<br />
Gas<br />
Left Hand<br />
16.66 20 20.96 21.8 21,8* 22 22.91 22.92 25.4 26 26,16** 28.57 30<br />
Name Chemical 1.338 1.814 1.814 1.814 1.814 1.814 1.814 1.814 3.175 1.814 1.814 1.814 1.814<br />
(former name) Formula 3/8 BSP 20 W 0.825 0.86 SI 22 GB 5/8 BSP 1 BSW 26 1.03 1.125 30 W<br />
F 19 14 14 NGO BSW 14 W 14 5/8/16 F 14 8 W 14 14 NGO 14 UNS 14<br />
Dinitrogentrioxide N 2O3 UK, IE<br />
(Nitrogen oxide)<br />
Fluorine F 2 FR, SE, SP,<br />
IE, PT, UK<br />
Nitrogen Monoxide NO SP<br />
(Nitricoxide)<br />
Nitrogen Dioxide NO 2 or N2O4<br />
Chlorine Trifluoride ClF 3 SP, PT<br />
Hydrogen Cyanide HCN SP, PT AT, CH, SE,<br />
DE, NL, FI<br />
Chloromethane CH3Cl M)<br />
IT CH, FI, AT FR, SP, PT UK, IE NL<br />
(methylchloride) SE, DE, BE, NO<br />
Cyanogene (CN) 2<br />
IT P)<br />
UK, IE FR, SP, PT AT, DE, CH, NL<br />
Diborane B 2H6 UK, IE UK, IE, FI FR, SP, PT AT, CH, NL<br />
Coal gas IT M)<br />
Methanethiol CH 3SH IT M)<br />
(Methylmercaptan)<br />
Carbon Monoxide CO IT M)<br />
Screw thread<br />
External<br />
AT, SE NL<br />
AT, SE, CH FR, SP, PT NL<br />
NO, DK, IS FR, SP, CH, FI, NO,<br />
GR, PT NL, AT, DE<br />
SE<br />
**SP,PT 26.1 (1.814)<br />
* SP,PT 21,8 (21.7) 5<br />
(M) Mandatory<br />
(P) Prefered<br />
(NF) Not Forbidden
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