Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels - Calibration of membrane tanks and independent prismatic tanks in ships - Manual and internal electro-optical distance-ranging methods (ISO 8311:2013); German version EN ISO 8311:2013— 50 стр.
Fibre optic interconnecting devices and passive components performance standard - Part 111-9: Sealed closures for category S - Subterranean (IEC 61753-111-9:2009) (english version)
