| 2 | Iron, steel and alloy | 1 | Mn | Steel — Determination of manganese content — Inductively coupled plasma atomic emission spectrometric method ISO 10278:1995 |
| Alloyed steels — Determination of manganese — Potentiometric or visual titration method ISO 18632:2018 |
| 2 | W | Steel — Determination of Mo, Nb and W contents in alloyed steel — Inductively coupled plasma atomic emission spectrometric method — Part 3: Determination of W content ISO/TS 13899-3:2005 |
| 3 | Si | Steel and iron-Determination of acid-solube silicon and total silicon content-Reduced molybdosilicate spectrophotometric method GB/T 223.5-2008 |
| Methods for chemical analysis of Iron,steel and alloy -The perchloric acid dehydration gravimetric method for the determination of silicon content GB/T 223.60-1997 |
| Steel and cast iron — Determination of total silicon contents — Reducedmolybdosilicate spectrophotometric method — Part 1: Silicon contents between 0,05 % and 1,0 % (ISO 4829-1:2018) EN ISO 4829-1:2018 |
| Steel and cast iron — Determination of total silicon contents — Reduced molybdosilicate spectrophotometric method — Part 1: Silicon contents between 0,05 % and 1,0 % ISO 4829-1:2018 |
| Steels — Determination of total silicon contents - Reduced molybdosilicatespectrophotometric method — Part 2: Silicon contents between 0,01 % and 0,05 % (ISO 4829-2:2016) EN ISO 4829-2:2016 |
| Steels — Determination of total silicon contents — Reduced molybdosilicate spectrophotometric method — Part 2: Silicon contents between 0,01 % and 0,05 % ISO 4829-2:2016 |
| Steel and iron — Determination of total silicon content — Gravimetric method (ISO 439:1994) EN ISO 439:2010 |
| Steel and iron — Determination of total silicon content — Gravimetric method ISO 439:1994 |
| Steel — Determination of silicon content — Inductively coupled plasma atomic emission spectrometric method ISO/TR 17055:2002 |
| 4 | Ni | Iron,steel and alloy-Determination of nickel content- The dimethylglyoxime spectrophotometric method GB/T 223.23-2008 |
| Methods for chemical analysis of Iron,steel and alloy- The dimethylglyoxime gravimetric method for the determination of nickel content GB/T 223.25-1994 |
| Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of nickel content GB/T 223.54-1987 |
| Steels and cast irons — Determination of nickel content — Flame atomic absorption spectrometric method (FAAS) EN 10136:2019 |
| Alloyed steels - Determination of nickel content - Inductively coupled plasma opticalemission spectrometric method EN 10361:2015 |
| Steel and iron — Determination of nickel content — Gravimetric or titrimetric method(ISO 4938:2016) EN ISO 4938:2016 |
| Steel and iron — Determination of nickel content — Gravimetric or titrimetric method ISO 4938:2016 |
| Steel and cast iron — Determination of nickel content — Flame atomic absorption spectrometric method ISO 4940:1985 |
