SIST-TS CEN/TS 15022-2:2010

SLOVENSKI STANDARD
01-marec-2010
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Copper and copper alloys - Determination of tin content - Part 2: Spectrophotometric
method
Kupfer und Kupferlegierungen - Bestimmung des Zinngehaltes - Teil 2:
Spektrophotometrisches Verfahren
Cuivre et alliages de cuivre - Dosage de l'étain - Partie 2 : Méthode
spectrophotométrique
Ta slovenski standard je istoveten z: CEN/TS 15022-2:2009
ICS:
77.120.30 Baker in bakrove zlitine Copper and copper alloys
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN/TS 15022-2
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
December 2009
ICS 77.120.30
English Version
Copper and copper alloys - Determination of tin content - Part 2:
Spectrophotometric method
Cuivre et alliages de cuivre - Dosage de l'étain - Partie 2 : Kupfer und Kupferlegierungen - Bestimmung des
Méthode spectrophotométrique Zinngehaltes - Teil 2: Spektrophotometrisches Verfahren
This Technical Specification (CEN/TS) was approved by CEN on 15 September 2009 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 15022-2:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Principle .4
4 Reagents .4
5 Apparatus .5
6 Sampling .5
7 Procedure .6
8 Expression of results .8
9 Precision .8
10 Test report .9
Bibliography . 10

Foreword
This document (CEN/TS 15022-2:2009) has been prepared by Technical Committee CEN/TC 133 “Copper
and copper alloys”, the secretariat of which is held by DIN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN shall not be held responsible for identifying any or all such patent rights.
Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 10 "Methods of
analysis" to prepare this Technical Specification:
This is one of four parts of the Standard/Technical Specification for the determination of tin content in copper
and copper alloys. The other parts are:
prEN 15022-1, Copper and copper alloys — Determination of tin content — Part 1: Titrimetric method (Part 1
will be the subject of future work);
EN 15022-3, Copper and copper alloys — Determination of tin content — Part 3: Low tin content — Flame
atomic absorption spectrometry method (FAAS);
CEN/TS 15022-4, Copper and copper alloys — Determination of tin content — Part 4: Medium tin content —
Flame atomic absorption spectrometry method (FAAS).
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, 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.

1 Scope
This part of this Technical Specification specifies the spectrophotometric method for the determination of tin
content of copper and copper alloys in the form of unwrought, wrought and cast products.
The method is applicable to products having tin mass fractions between 0,005 % and 0,5 %.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 1811-1, Copper and copper alloys — Selection and preparation of samples for chemical analysis —
Part 1: Sampling of cast unwrought products
ISO 1811-2, Copper and copper alloys — Selection and preparation of samples for chemical analysis —
Part 2: Sampling of wrought products and castings
3 Principle
Extraction into methyl isobutyl ketone and spectrophotometric determination of the yellow tin-quercetin
complex at a wavelength of 440 nm.
4 Reagents
During the analysis, use only reagents of recognized analytical grade and only distilled water or water of
equivalent purity.
4.1 Hydrochloric acid, HCl (ρ = 1,19 g/ml).
4.2 Methyl isobutyl ketone.
4.3 Ammonia solution, NH OH (ρ = 0,91 g/ml).
4.4 Hydrogen peroxide solution, H O , 30 % (mass fraction).
2 2
4.5 Hydrochloric acid solution, diluted 1 + 1.
Add 50 ml of hydrochloric acid (4.1) to 50 ml of water.
4.6 Sulphuric acid, H SO (ρ = 1,84 g/ml).
2 4
4.7 Sulphuric acid solution, diluted 1 + 19.
Add 50 ml of sulphuric acid (4.6) to 950 ml of water.
4.8 Thiourea solution, NH CSNH (60 g/l).
2 2
Dissolve 15 g of thiourea in water and dilute to 250 ml.
4.9 Ascorbic acid solution, C H O (20 g/l).
6 8 6
Dissolve 1 g of ascorbic acid in water and dilute to 50 ml.
Use a freshly prepared solution.
4.10 Quercetin acid ethanol solution, (1 g/l).
Dissolve 500 mg of quercetin in 300 ml of 95 % (volume fraction) ethanol in a 500 ml one-mark volu
...