UN 3553 Disilane, liquefied under pressure ADR 2025 (Shortinfo)

The substance may be carried in UN MEGCs.

Code PxBN(M): P = Type of tank: Tank, battery-vehicle or MEGC for liquefied gases or dissolved gases. ------------------------- x = Calculation pressure: Value of the minimum relevant test pressure according to the table in 4.3.3.2.5. ------------------------- B = Openings (see 6.8.2.2 and 6.8.3.2): Tank with bottom filling or discharge openings with 3 closures; or battery-vehicle or MEGC with openings below the surface of the liquid or for compressed gases. ------------------------- N = Safety valves/devices: Tank, battery-vehicle or MEGC with safety valve according to 6.8.3.2.9 or 6.8.3.2.10 which is not hermetically closed. ------------------------- (M) = The substance can also be carried in battery-vehicles or MEGCs.

(a) A vehicle intended for the carriage of liquids having a flash-point of not more than 60°C (with the exception of diesel fuel complying with standard EN 590:2013 + A1:2017, gas oil, and heating oil (light) - UN No. 1202 - with a flash-point as specified in standard EN 590:2013 + A1:2017) in fixed tanks or demountable tanks with a capacity exceeding 1 m³ or in tank-containers or portable tanks with an individual capacity exceeding 3 m³; or (b) A vehicle intended for the carriage of flammable gases in fixed tanks or demountable tanks with a capacity exceeding 1 m³ or in tank-containers, portable tanks or MEGCs with an individual capacity exceeding 3 m³; or, (c) A battery-vehicle with a total capacity exceeding 1 m³ intended for the carriage of flammable gases; or d) A vehicle intended for the carriage of hydrogen peroxide, stabilized or hydrogen peroxide, aqueous solution stabilized with more than 60% hydrogen peroxide (Class 5.1, UN No. 2015) in fixed tanks or demountable tanks with a capacity exceeding 1 m3 or in tank-containers or portable tanks with an individual capacity exceeding 3 m³;