1.1 This standard ( Part 8 ) recommends the methods to be used for dimensional inspection and testing of hot coiled helical compression springs conforming to IS 7906 ( Part 5 ) : 1989.
1.2 For carrying out certain tests this standard recommends the use ?f gauges. However, it is to be recommended that for very small quantities the use of suitable gauges may not be economical. In that case "an alternative method may be agreed between the purchaser and the supplier.
IS 7906 Pt.8-1989 history
1989IS 7906 Pt.8-1989 Spiral compression springs Part 8 Test methods for hot-rolled compression springs of circular cross-section bars