EN 10200:2012

Chemical analysis of ferrous materials - Determination of boron in steels - Spectrophotometric method

This European Standard specifies a spectrophotometric method for the determination of boron in steels. The method is applicable to non-alloyed and alloyed steels with boron contents of 0,000 4 to 0,012 0 % (m/m).

Chemische Analyse von Eisenwerkstoffen - Bestimmung von Bor in Stahl - Spektralphotometrisches Verfahren

Diese Europäische Norm legt ein spektralphotometrisches Verfahren zur Bestimmung von Bor in Stahl fest. Das Verfahren ist auf unlegierte und legierte Stähle mit Boranteilen von 0,000 4 % bis 0,012 0 % (m/m) anwendbar.

Analyse chimique des matériaux ferreux - Détermination du bore dans les aciers - Méthode spectrophotométrique

La présente Norme européenne spécifie une méthode pour la détermination de la teneur en bore dans les aciers par spectrophotométrie. La méthode est applicable aux aciers non alliés et aux aciers alliés avec des teneurs en bore de 0,000 4 à 0,012 0 % (m/m).

Kemična analiza železovih materialov - Določevanje bora in jekla - Spektrofotometrična metoda

Ta evropski standard določa spektrofotometrično metodo za določevanje bora v jeklu. Metoda se uporablja za nelegirana in legirana jekla z vsebnostjo bora od 0,0004 do 0,0120 % (m/m).

General Information

• Status: Published
• Publication Date: 09-Oct-2012
• Withdrawal Date: 29-Apr-2013
• ICS: 77.040.30 - Chemical analysis of metals
• ICS: 77.080.20 - Steels
• Technical Committee: ECISS/TC 102 - Methods of chemical analysis for iron and steel
• Drafting Committee: ECISS/TC 102/WG 3 - Determination of environmentally sensitive elements in steel
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 03-Jun-2024
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 10200:2013 - Chemical analysis of ferrous materials - Determination of boron in steel - Spectrophotometric method

Overview

EN 10200:2012 - Chemical analysis of ferrous materials: Determination of boron in steels - specifies a spectrophotometric method for measuring boron in steels. Published by CEN and approved 17 August 2012, the standard applies to non‑alloyed and alloyed steels with boron contents from 0.0004% to 0.0120% (m/m). It supersedes EN 10200:1991 and references sampling per EN ISO 14284.

Key topics and technical requirements

• Scope and applicability: Designed for routine laboratory determination of low-level boron in steel; lower application limit is 0.0004% (method may be extended below this with reduced precision).
• Analytical principle: Dissolve a weighed test portion in HCl/HNO3, decompose boron compounds with orthophosphoric and sulphuric acids at ~290 °C, then form an orange complex with curcumin in buffered acetic medium. Measure absorbance at 543 nm (20 mm cells).
• Sample sizes: Typical test portion masses are 1.00 g ±0.05 g for boron < 0.006% and 0.50 g ±0.03 g for boron 0.006–0.012% (smaller portions recommended for steels high in Ni/Co).
• Reagents and apparatus: Uses analytical‑grade acids (HCl, HNO3, H2SO4, H3PO4), curcumin reagent, sodium hypophosphite for reduction, sodium fluoride for compensation, quartz/polyethylene vessels and a spectrophotometer set to 543 nm.
• Quality controls: Blank determinations, compensating solutions (sodium fluoride), and a calibration curve prepared by spiking boron into pure iron are mandatory. The method includes detailed steps for digestion, fuming, colour development and timing to ensure reproducible results.
• Precision: Inter‑laboratory data support the stated working range and precision; the 0.0004% lower limit was set to meet a relative deviation criterion (≈10% at specified confidence).

Applications and users

• Who uses EN 10200:2012:
  • Steel producers and metallurgy labs for composition verification and quality control
  • Independent testing laboratories verifying boron content for material certification
  • Research laboratories studying trace boron effects on steel properties
  • Inspection bodies and procurement teams specifying chemical analysis criteria
• Practical uses:
  • Control of boron‑alloyed steels where low boron additions affect hardenability and mechanical properties
  • Compliance testing for material specifications and contract acceptance
  • Routine process monitoring in steel manufacturing and heat treatment workflows

Related standards

• EN ISO 14284 - Sampling and preparation of samples for chemical composition analysis (normative reference)
• ISO 5725 - Precision and accuracy of measurement methods (referenced for precision evaluation)
• EN 10200:1991 - Previous edition (superseded)

Keywords: EN 10200:2012, boron in steels, spectrophotometric method, chemical analysis of ferrous materials, determination of boron, CEN, 543 nm.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Chemische Analyse von Eisenwerkstoffen - Bestimmung von Bor in Stahl - Spektrophotometrisches VerfahrenAnalyse chimique des matériaux ferreux - Détermination du bore dans les aciers - Méthode spectrophotométriqueChemical analysis of ferrous materials - Determination of boron in steel - Spectrophotometric method77.080.01Železne kovine na splošnoFerrous metals in general77.040.30Kemijska analiza kovinChemical analysis of metalsICS:Ta slovenski standard je istoveten z:EN 10200:2012SIST EN 10200:2013en,fr,de01-april-2013SIST EN 10200:2013SLOVENSKI
STANDARDSIST EN 10200:1991:2007-041DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10200
October 2012 ICS 77.040.30 Supersedes EN 10200:1991English Version
Chemical analysis of ferrous materials - Determination of boron in steels - Spectrophotometric method
Analyse chimique des matériaux ferreux - Détermination du bore dans les aciers - Méthode spectrophotométrique
Chemische Analyse von Eisenwerkstoffen - Bestimmung von Bor in Stahl - Spektrophotometrisches Verfahren This European Standard was approved by CEN on 17 August 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10200:2012: ESIST EN 10200:2013

Precision data . 13Bibliography . 15 SIST EN 10200:2013

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. CEN [and/or] CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10200:1991. Since the previous edition, no technical changes have been made, but the text has been editorially revised. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 10200:2013

NOTE Diagrams of these blocks are shown in Figures 1 and 2. The dimensions of the holes should be adapted to the dimensions of the quartz beakers available.
5.3 50 ml polyethylene one-mark volumetric flasks. 5.4 100 ml polyethylene flasks. 5.5 Spectrophotometer, suitable for measuring absorbance at a wavelength of 543 nm, with 20 mm cells. SIST EN 10200:2013

NOTE Adapt the dimensions of the holes according to the dimensions of the beakers available. Figure 1 — Example of circular aluminium alloy heating block SIST EN 10200:2013

NOTE
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