2003NF F37-100-3:2003 Railway applications - Tank wagons - Part 3 : bottom filling and emptying devices for gases liquefied under pressure.
1985NF F37-034:1985 Railway rolling stock-tank wagons for liquefied gases or dissolved under pressure gases of the class 2 of the R.I.D and the R.T.M.D. Bottom filling and emptying devices to a maximal allowed working pressure of 40 bar.
1977NF F37-035:1977 RAILWAY TRANSPORT EQUIPMENT. TANK WAGONS FOR GASES LIQUIFIED OR DISSOLVED UNDER PRESSURE (CLASS 2 OF THE R.I.D.). POSITIONING OF BOTTOM FILLING AND EMPTYING DEVICES.