BS 500 pdf free download
BS 500-2000 pdf free download.Steel sleepers.
This British Standard specifies performance requirements for steel sleepers for railway track. It includes definitive requirements relating to the ability of the sleeper to retain track geometry, sleeper durability, electrical resistance, and the control of the production process so that the consistency of the sleeper’s performance is assured.
2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this British Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated references, the latest edition of the publication referred to applies.
BS 812-103.1, Testing aggregates Ð Part 103: Method for determination of particle size distribution
BSection 103.1: Sieve tests. BS 812-105.1:1989, Testing aggregates
BPart 105: Methods for determination of particle shape Ð Section 105.1: Flakiness index. BS 812-105.2:1990, Testing aggregates Part 105: Methods for determination of particle shape Ð Section 105.2: Elongation index of coarse aggregate.
BS 6072:1981, Method for magnetic particle flow detection. BS EN 27888:1993, Water quality Ð Method for the determination of electrical conductivity.
BS EN ISO 7500-1:1999, Metallic materials Ð Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Ð Verification and calibration of the force-measuring system.
3 Information and requirements to be agreed and to be documented
3.1 General For compliance with the standard, both the definitive requirements specified throughout the standard and the following documented items shall be satisfied.
3.2 Information to be supplied by the purchaser
3.2.1 Fastening system specified by purchaser If the purchaser specifies the fastening system to be used, the following information shall be supplied and fully documented:
a) the rail fastening system to be used (including the rail pad and any insulators) and whether its components are to be supplied with the sleeper;
b) the nominal track gauge;
c) the rail profile to be used; d) the nominal rail inclination;
e) the maximum static and dynamic rail seat reactions and the maximum lateral force to be supported (see annex B);
f) any specific requirements to ensure that installation of the sleepers and track maintenance can be undertaken effectively using the procedures available to the purchaser;
g) any specific requirements for the packaging and protection of sleepers in transit;
h) whether an electrical resistance test is required and the minimum resistance to be achieved.
3.2.2 Fastening system not specified by purchaser If the purchaser does not specify the fastening system to be used, the following information shall be supplied and fully documented:
a) whether the fastening system is to be supplied with the sleeper as an assembled unit;
b) the nominal track gauge and the acceptable variation;
c) the rail profile to be used;
d) the nominal rail inclination and its acceptable variation;
e) the maximum static and dynamic rail seat reaction, and the maximum lateral force to be supported (see annex B);
f) any specific requirements to ensure that installation of the sleepers and track maintenance can be undertaken effectively using the procedures available to the purchaser;
g) any specific requirements for the packaging and protection of sleepers in transit;
h) whether an electrical resistance test is required and the minimum resistance to be achieved.BS 500 pdf download.
