Kommittébeteckning: SIS/TK 183 (Geoteknik och geokonstruktioner)
Källa: CEN
Svarsdatum: den 1 jun 2023
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This standard describes the test method covering the procedure for drilling the borehole, inserting the probe, and performing the test in soils and weak rock by axial shearing of the borehole wall. It does not include high pressure testing in hard rock. The test works best in sands, silts, clays and weak rocks, which will maintain open test cavity or which can be held open with drilling fluid. NOTE This document is intended to be used in conjunction with EN 1997-2. EN 1997-2 defines the way ground investigation has to be done to define a reliable ground model including resistance of soils and rocks.

Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: CEN
Svarsdatum: den 8 jun 2023
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This document specifies Vignole railway rails of 46 kg/m and greater linear mass, for conventional and high speed railway track usage.
Pearlitic steel grades are specified covering a hardness range of 200 HBW to 440 HBW and include non heat treated non alloy steels, non heat treated alloy steels, and heat treated non alloy steels and heat treated alloy steels.
There are 24 rail profiles specified in this document.
Two classes of rail straightness are specified, differing in requirements for straightness, surface flatness and crown profile. Two classes of profile tolerances are specified.