This Part of BS 1726 provides guidance on the specification, tolerancing and testing of parallel sided helical compression springs manufactured from round wire and bar.
Two grades of tolerance, 1 and 2, are given for springs.
Fifteen types of end coils are provided for, these being divided into three groups.
This standard applies to springs which have not been subjected to heat treatment other than stress relieving after coiling.
This standard gives two methods of specifying springs and a methods of testing springs.
BS 1726-2:2002 Referenced Document
BS 1726-1 Cylindrical helical springs made from round wire and bar. Guide to methods of specifying and tolerancing hot coiled springs, and cold coiled springs not covered by BS EN 15800, and general spring testing. Compression springs*， 2010-11-30 Update
BS 887 Precision vernier callipers – Requirements and test methods
BS 969 Specification for limits and tolerances on plain limit gauges
BS EN ISO 3650 Geometrical Product Specifications (GPS) — Length standards — Gauge blocks
BS EN ISO 7500-1 Metallic materials. Calibration and verification of static uniaxial testing machines. Tension/compression testing machines. Calibration and verification of the force-measuring system*， 2018-03-31 Update
BS 1726-2:2002 history
0000 BS 1726-2:2002(2009)
2002BS 1726-2:2002 Cylindrical helical springs made from round wire and bar - Guide to methods of specifying, tolerances and testing - Extension springs