| 2 | Iron, steel and alloy | 22 | Fe | Iron,steel and alloy-Determination of iron contents-o-Phenanthroline spectrophotometric method GB/T 223.70-2008 |
| Iron,steel and alloy-Determination of iron contents--Titanium trichloride-potassium dichromate titration method GB/T 223.73-2008 |
| 23 | C,Si,Mn,P,S,Cr,Ni,Mo,Al,Cu,W,Ti,Nb,V,B,As,Sn,Mg,La,Ce,Sb,Zn,Zr | Cast iron--Determination of multi-element contents--Spark discharge atomic emission spectrometric method (Routine method) GB/T 24234-2009 |
| 24 | Ti | Steel and iron — Determination of titanium content — Diantipyrylmethanespectrophotometric method (ISO 10280:1991) EN ISO 10280:1995 |
| Steel and iron — Determination of titanium content — Diantipyrylmethane spectrometric method ISO 10280:1991 |
| Steel and iron—Determination of titanium content—Diantipyrylmethane spectrophotometric method GB/T 223.84-2009 |
| 25 | V | Steel and cast iron — Determination of vanadium content — Potentiometric titration method (ISO 4947:1986) EN 24947:1991 |
| Steel and cast iron — Determination of vanadium content — Potentiometric titration method ISO 4947:1986 |
| 26 | Nb | Chemical analysis of ferrous materials — Determination of niobium in steels —Spectrophotometric method EN 10178:1989 |
| Iron, steel and alloy - Determination of niobium content by the sulphochlorophenol S spectrophotometric method GB/T 223.40-2007 |
| Steel — Determination of Mo, Nb and W contents in alloyed steel — Inductively coupled plasma atomic emission spectrometric method — Part 2: Determination of Nb content ISO 13899-2:2005 |
| 27 | Al, Cr, Co, Cu, Mn, Mo, Ni, P, Sn, V | Chemical analysis of ferrous materials — Inductively coupled plasma optical emission spectrometric analysis of unalloyed and low alloyed steels — Determination of Mn, P, Cu, Ni, Cr, Mo, V, Co, Al (total) and Sn [Routine method] EN 10351:2011 |
| 28 | C, Cr, Cu, Mn, Ni, P, Si, S | Optical emission analysis of low alloy steels (routine method) — Method for determination of C, Si, S, P, Mn, Cr, Ni and Cu CR 10320:2004 |
| 29 | Cr, Cu, Mn, Mo, Ni, P, Si, Sn | Chemical analysis of ferrous materials — Inductively coupled plasma optical emission spectrometric analysis of unalloyed and low alloyed steels — Determination of Si, Mn, P, Cu, Ni, Cr, Mo and Sn, following dissolution with nitric and sulphuric acids [Routine method] EN 10355:2013 |
| 30 | Al、Sb、As、B、Ca、C、Cr、Co、Cu、Mn、Mo、Ni、Nb、N、P、Si、S、Sn、Ti、V、Zr | Standard Test Method for Analysis of Carbon and Low-Alloy Steel by Spark Atomic Emission Spectrometry ASTM E415-17 |
| 31 | C、Cr、Cu、Mn、Mo、Ni、P、Si、S | Standard Test Method for Analysis of Austenitic Stainless Steel by Spark Atomic Emission Spectrometry ASTM E1086-14 |
| 32 | C、S、O、N | Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by Various Combustion and Inert Gas Fusion Techniques ASTM E1019-18 |
| 33 | Mo | Iron steel and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method GB/T 223.26-2008 |
| Steel and iron — Determination of molybdenum content — Thiocyanate spectrophotometric method ISO 4941:1994 |
| Steel — Determination of Mo, Nb and W contents in alloyed steel — Inductively coupled plasma atomic emission spectrometric method — Part 1: Determination of Mo content ISO/TS 13899-1:2004 |
