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EN 10083-1

EN 10083-1 Steels for quenching and tempering - Part 1: General technical delivery conditions

BS 3111-1:1987

Steel for cold forged fasteners and similar components-Part 1: Specification for carbon and low alloy steel wire

BS 3111.1:1987

DIN EN 10027-1992

Designation systems for steels Numerical system English version of DIN EN 10027 Part 2

GB/T 4373.4

Methods for chemical analysis of arsenic;The dithio-diantipyrylmethane photometric method for the determination of bismuth content