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I.S. EN 31427:1994

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

DETERMINATION OF SILVER IN SILVER JEWELLERY ALLOYS - VOLUMETRIC (POTENTIOMETRIC) METHOD USING POTASSIUM BROMIDE

Available format(s)

Hardcopy , PDF

Superseded date

10-31-2016

Language(s)

English

Published date

01-01-1994

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Foreword
1 Scope
2 Normative reference
3 Principle
4 Reagents
5 Apparatus
6 Sampling
7 Procedure
8 Expression of results
9 Test report
Annex ZA (normative) - Normative references to
         international publications with their
         relevant European publications

Specifies a volumetric method for the determination of silver in silver jewellery allows, preferably within the range of fineness stated in I.S. EN 29202.

DevelopmentNote
COR 1994 issued on 06-09-2011. (09/2011)
DocumentType
Standard
Pages
19
PublisherName
National Standards Authority of Ireland
Status
Superseded
SupersededBy

Standards Relationship
UNE-EN 31427:1996 Identical
ISO 11427:2014 Identical
EN 31427:1994/AC:1994 Identical
SN EN 31427 : 1994 Identical
BS EN 31427:1994 Identical
UNI EN 31427 : 1997 Identical
NF EN 31427 : 1995 Identical
NBN EN 31427 : 1994 COR 1994 Identical
DIN EN 31427:1995-04 Identical

EN 29202 : 1992 JEWELLERY - FINENESS OF PRECIOUS METAL ALLOYS
ISO 9202:2014 Jewellery Fineness of precious metal alloys

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