Railway applications. Tank wagons - Bottom emptying devices for liquid products including vapour return1 Scope This European Standard specifies requirements on and characteristics of bottom emptying devices on tank wagons used for the carriage of liquid substances of RID. This European Standard specifies the most important dimensions of connection devices for the emptying of the tank. Safety functions of these devices are subject to RID requirements and not described in this document. This European Standard is applicable to bottom vapour return devices

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new quality evaluation methods are also established in order to achieve stable and high-quality broadcasting services avoiding the cliff effect

actual components have to be used for the pre-production test

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In comparison to the previous edition following technical changes were made:

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and accuracy in measuring relays and prevents leakage paths and other hazards

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