SIST EN 16057:2012

Influence of metallic materials on water intended for human consumption - Determination of residual surface lead (Pb) - Extraction method

This European Standard describes a test method to determine the amount of lead on the surface of test specimens made from lead containing copper alloys.

Einfluss metallischer Werkstoffe auf Wasser für den menschlichen Gebrauch - Bestimmung des Rückstands an Oberflächenblei (Pb) - Extraktionsverfahren

Diese Europäische Norm beschreibt ein Prüfverfahren zur Bestimmung der Bleimenge an der Oberfläche von Prüfkörpern aus bleihaltigen Kupferlegierungen.

Influence des matériaux métalliques sur l'eau destinée à la consommation humaine - Dosage du plomb (Pb) résiduel de surface - Méthode d'extraction

La présente Norme européenne décrit une méthode d'essai pour déterminer la quantité de plomb à la surface d'éprouvettes en alliages de cuivre au plomb.

Vpliv kovinskih materialov na pripravo pitne vode - Določanje ostankov svinca (Pb) na površini - Metoda ekstrakcije

Ta evropski standard navaja preskusno metodo za določanje količine svinca na površini preskušanca, izdelanega iz bakrovih zlitin, ki vsebujejo svinec.

General Information

• Status: Published
• Public Enquiry End Date: 19-May-2010
• Publication Date: 10-Jun-2012
• ICS: 13.060.20 - Drinking water
• ICS: 67.250 - Materials and articles in contact with foodstuffs
• Technical Committee: IOVO - Water supply and waste water engineering
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Jun-2012
• Due Date: 10-Aug-2012
• Completion Date: 11-Jun-2012
• Mandate: M/136 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on construction products in contact with water intended for human consumption
• Ref Project: EN 16057:2012 - Influence of metallic materials on water intended for human consumption - Determination of residual surface lead (Pb) - Extraction method

Overview

SIST EN 16057:2012 is a European Standard established by the European Committee for Standardization (CEN) that specifies a test method for determining the amount of residual surface lead (Pb) on metallic materials, specifically copper alloys containing lead. This standard is critical for assessing the influence of metallic materials on water intended for human consumption, commonly known as drinking water. The presence of lead films on the inner surfaces of products that come into contact with drinking water can lead to lead contamination, particularly in the initial weeks of product use. SIST EN 16057:2012 provides a reliable extraction method to quantify residual lead on these surfaces, helping manufacturers and laboratories ensure compliance with safety and quality standards.

Key Topics

• Scope and Purpose
  The standard addresses the determination of lead films formed on the surface of lead-containing copper alloys which may affect drinking water quality through short-term lead release.

• Test Specimens
  Two types of specimens are defined:

  • Method-Control-Sample (MCS): A standard specimen made from copper alloy CW614N with a defined lead content and geometry for verifying the testing method.
  • Process Sample (PS): Manufactured under the same process as the final product to assess the efficiency of lead removal or minimization during production.

• Test Solution and Reagents
  The method uses a freshly prepared test solution containing sulphamidic acid and tetrafluoroboric acid, applied under controlled shaking conditions to dissolve and extract surface lead.

• Extraction Procedure
  The test involves repeated extraction and analysis of lead content from the test specimen’s surface over ten cycles to calculate the total mass of residual surface lead.

• Quality Control
  The method-control-sample (MCS) is used regularly to verify the effectiveness of the extraction method, ensuring consistent and accurate results.

• Analytical Requirements and Reporting
  Detailed guidelines are provided for preparing specimens, performing tests, controlling method parameters, and reporting results for traceability and regulatory compliance.

Applications

• Water Supply and Drinking Water Safety
  SIST EN 16057:2012 is essential for water utilities and regulatory bodies to ensure that metallic components used in water supply systems do not contribute excessive lead to drinking water.

• Manufacturing Process Control
  Metal manufacturers and product fabricators use this standard to monitor and optimize production processes that influence lead contamination risk from surface films.

• Compliance with Drinking Water Directives
  Enables conformity with European and national regulations on lead levels in products intended to contact drinking water, supporting public health protection.

• Quality Assurance in Copper Alloy Products
  The method assists in verifying that copper alloy products meet stringent lead release criteria during early product life stages, minimizing consumer exposure.

Related Standards

• EN 15664-1 and EN 15664-2
  These linked standards define dynamic rig tests for assessing lead release from the bulk of metallic materials over the long term, complementing the surface lead determination in EN 16057.

• CEN/TS 13388
  Provides specifications for copper and copper alloys composition, referenced in EN 16057 for the standardization of test sample material.

Keywords

Lead determination, residual surface lead, lead release, copper alloys, drinking water safety, metallic materials, water intended for human consumption, EN 16057, extraction method, surface lead testing, metallic material influence, water supply standards, quality assurance, European Standard.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Einfluss metallischer Werkstoffe auf Wasser für den menschlichen Gebrauch - Bestimmung des Rückstands an Oberflächenblei (Pb) - ExtraktionsverfahrenInfluence des matériaux métalliques sur l'eau destinée à la consommation humaine - Dosage du plomb (Pb) résiduel de surface - Méthode d'extractionInfluence of metallic materials on water intended for human consumption - Determination of residual surface lead (Pb) - Extraction method67.250Materiali in predmeti v stiku z živiliMaterials and articles in contact with foodstuffs13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 16057:2012SIST EN 16057:2012en,fr,de01-september-2012SIST EN 16057:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16057
May 2012 ICS 67.250 English Version
Influence of metallic materials on water intended for human consumption - Determination of residual surface lead (Pb) - Extraction method
Influence des matériaux métalliques sur l'eau destinée à la consommation humaine - Dosage du plomb (Pb) résiduel de surface - Méthode d'extraction
Einfluss metallischer Werkstoffe auf Wasser für den menschlichen Gebrauch - Bestimmung des Rückstands an Oberflächenblei (Pb) - Extraktionsverfahren This European Standard was approved by CEN on 13 April 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, 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 16057:2012: ESIST EN 16057:2012

The lead release from the bulk material is not affected by the lead film on the surface and depends on the composition of the material. The bulk material can release lead for a long period (long term behaviour). It is possible to test materials for their lead release from the bulk material (EN 15664-1 and -2), so that products made of approved materials do not have to be tested for this characteristic. As the lead films on the surface depend on the individual manufacturing process, it is necessary to test the products or the manufacturing process. This test method is intended to be used as a process control method to assess the presence of lead films on the inner surface of products intended to come in contact with drinking water or to assess the efficiency of a manufacturing process to remove or minimise surface Pb, e.g. washing process to remove lead on surfaces. The implementation of an audit controlled process monitoring is an effective w
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