EN 12441-11:2006

Zinc and zinc alloys - Chemical analysis - Part 11: Determination of silicon in zinc alloys - Spectrophotometric method

This European Standard specifies a spectrophotometric method for the determination of silicon in zinc alloys. It is applicable to the products specified in EN 1774 and EN 12844.
It is suitable for the determination of silicon contents (mass fractions) between 0,01 % and 0,1 %.

Zink und Zinklegierungen - Chemische Analyse - Teil 11: Bestimmung von Silicium in Zinklegierungen - Spektrophotometrisches Verfahren

Dieses Dokument legt ein spektrophotometrisches Verfahren für die Bestimmung von Silicium in Zinklegie-rungen
fest. Das Verfahren ist auf die in EN 1774 und EN 12844 festgelegten Produkte anwendbar.
Es ist geeignet für die Bestimmung von Siliciumgehalten (Massenanteile) zwischen 0,01 % und 0,1 %.

Zinc et alliages de zinc - Analyse chimique - Partie 11 : Dosage du silicium dans les alliages de zinc - Méthode spectrophotométrique

Cink in cinkove zlitine – Kemična analiza – 11. del: Določevanje silicija v cinkovih zlitinah - Spektrofotometrijska analiza

General Information

• Status: Published
• Publication Date: 08-Aug-2006
• ICS: 77.120.60 - Lead, zinc, tin and their alloys
• Technical Committee: CEN/TC 209 - Zinc and zinc alloys
• Drafting Committee: CEN/TC 209/WG 6 - Methods of analysis and testing
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 02-Dec-2024
• Completion Date: 02-Dec-2024
• Ref Project: SIST EN 12441-11:2006 - Zinc and zinc alloys - Chemical analysis - Part 11: Determination of silicon in zinc alloys - Spectrophotometric method

Relations

• Refers: EN 12844:1998 - Zinc and zinc alloys - Castings - Specifications
• Effective Date: 28-Jan-2026
• Refers: EN 1774:1997 - Zinc and zinc alloys - Alloys for foundry purposes - Ingot and liquid
• Effective Date: 28-Jan-2026
• Refers: EN 12060:1997 - Zinc and zinc alloys - Method of sampling - Specifications
• Effective Date: 28-Jan-2026

Overview

EN 12441-11:2006 is a European Standard published by CEN for the chemical analysis of zinc and zinc alloys, specifically detailing a spectrophotometric method for the determination of silicon. This standard is designed for manufacturers, laboratories, and quality assurance professionals working with zinc alloys as described in EN 1774 and EN 12844. The method is particularly suitable for detecting and quantifying silicon content within zinc alloys in the mass fraction range of 0.01% to 0.1%.

EN 12441-11:2006 ensures accuracy and consistency in silicon analysis, which is crucial for verifying compliance with material specifications and maintaining the performance of zinc alloy products in industrial applications.

Key Topics

• Scope and Applicability

  • Applicable to zinc and zinc alloy products specified in EN 1774 and EN 12844
  • Covers silicon content determination from 0.01% to 0.1% mass fraction

• Spectrophotometric Method

  • Utilizes a spectrophotometer set at 820 nm for analysis
  • Based on the formation of silicomolybdenum blue after the dissolution of the sample in hydrochloric and hydrofluoric acids
  • Calibration with known silicon standard solutions to ensure result accuracy

• Sampling and Preparation

  • Test samples are prepared following the procedures in EN 12060
  • Use of plastic laboratory apparatus to prevent contamination and ensure safety due to corrosive reagents

• Reporting and Results

  • Results are expressed as percentage by mass
  • Requires documentation of method reference, results, any deviations, and other relevant test details for traceability

• Precision and Repeatability

  • Inter-laboratory trials inform limits of repeatability and reproducibility in testing
  • Ensures reliable results across different laboratories and conditions

Applications

EN 12441-11:2006 is highly valuable in several industrial and laboratory contexts involving zinc alloys:

• Quality Control in Manufacturing

  • Ensures zinc alloy compositions meet specified criteria for silicon content, supporting product reliability and performance

• Research and Development

  • Facilitates accurate analysis of new alloy formulations during development

• Regulatory Compliance

  • Enables companies to demonstrate adherence to European and international standards for zinc alloy products

• Material Certification

  • Provides a standardized approach for certifying the silicon content in zinc alloy ingots and castings, in line with EN 1774 and EN 12844

• Third-Party Testing Laboratories

  • Used by accredited labs for independent verification of silicon levels in bulk zinc alloy shipments

The standard’s spectrophotometric approach offers a robust, precise, and repeatable method suitable for routine analysis in production and laboratory environments.

Related Standards

EN 12441-11:2006 is part of a comprehensive series for the chemical analysis of zinc and zinc alloys:

• EN 1774: Zinc and zinc alloys - Alloys for foundry purposes
• EN 12844: Zinc and zinc alloys - Castings - Specifications
• EN 12060: Zinc and zinc alloys - Method of sampling
• Other relevant parts from the EN 12441 series include methods for determining aluminium, magnesium, lead, cadmium, copper, iron, tin, nickel, chromium, and titanium by various analytical techniques.

Additional references:

• ISO 5725 (Parts 1-3): Accuracy of measurement methods - principles, definitions, and precision measures

For professionals in metallurgical, chemical analysis, and industrial manufacturing sectors, adopting EN 12441-11:2006 supports process consistency, product quality, and compliance with leading industry standards for zinc alloys.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Zinc and zinc alloys - Chemical analysis - Part 11: Determination of silicon in zinc alloys - Spectrophotometric methodZinc et alliages de zinc - Analyse chimique - Partie 11 : Dosage du silicium dans les alliages de zinc - Méthode spectrophotométriqueZink und Zinklegierungen - Chemische Analyse - Teil 11: Bestimmung von Silicium in Zinklegierungen - Spektrophotometrisches VerfahrenTa slovenski standard je istoveten z:EN 12441-11:2006SIST EN 12441-11:2006en77.120.6077.040.30ICS:SLOVENSKI
STANDARDSIST EN 12441-11:200601-november-2006

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12441-11August 2006ICS 77.120.60 English VersionZinc and zinc alloys - Chemical analysis - Part 11: Determinationof silicon in zinc alloys - Spectrophotometric methodZinc et alliages de zinc - Analyse chimique - Partie 11 :Dosage du silicium dans les alliages de zinc - MéthodespectrophotométriqueZink und Zinklegierungen - Chemische Analyse - Teil 11:Bestimmung von Silicium in Zinklegierungen -Spektrophotometrisches VerfahrenThis European Standard was approved by CEN on 7 July 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12441-11:2006: E

Additional information on international co-operative tests.8 Annex B (informative)
Graphical representation of precision data.9 Bibliography.10

Part 1: Determination of aluminium in zinc alloys – Titrimetric method  Part 2: Determination of magnesium in zinc alloys – Flame atomic absorption spectrometric method  Part 3: Determination of lead, cadmium and copper – Flame atomic absorption spectrometric method  Part 4: Determination of iron in zinc alloys – Spectrophotometric method  Part 5: Determination of iron in primary zinc – Spectrophotometric method  Part 6: Determination of aluminium and iron – Flame atomic absorption spectrometric method  Part 7: Determination of tin – Flame atomic absorption spectrometric method after extraction  Part 8: Determination of tin in secondary zinc – Flame atomic absorption spectrometric method  Part 9: Determination of nickel in zinc alloys – Flame atomic absorption spectrometric method  Part 10: Determination of chromium and titanium in zinc alloys – Spectrophotometric method According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EN 12060:1997, Zinc and zinc alloys – Method of sampling – Specifications EN 12844, Zinc and zinc alloys – Castings – Specifications 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 12060:1997 apply. 4 Principle Direct spectrophotometric determination of silicomolybdenum blue after dissolution of the sample in hydrochloric and hydrofluoric acid. 5 Reagents 5.1 General During the test, use only reagents of known analytical grade. 5.2 Bidistilled water (for preparation and dilution of all solutions) 5.3 Hydrochloric acid, ρ = 1,19 g/ml 5.4 Hydrofluoric acid, ρ = 1,13 g/ml 5.5 Boric acid 5.6 Ammonium molybdate (NH4)6Mo7O24 . 4H2O 5.7 Sodium metabisulfite Na2S2O5 5.8 Sodium sulfite Na2SO3 5.9 1-amino-2-naphtol-4-sulfonic acid
...