SIST EN 62554:2012/A2:2025

Sample preparation for measurement of mercury level in fluorescent lamps and low-pressure mercury UV radiation sources (IEC 62554:2011/AMD2:2025)

Vorbereitung des Prüfmusters zur Messung des Quecksilbergehalts in Leuchtstofflampen (IEC 62554:2011/AMD2:2025)

Préparation des échantillons en vue de la mesure du niveau de mercure dans les lampes fluorescentes et les sources de rayonnement UV à mercure à basse pression (IEC 62554:2011/AMD2:2025)

Priprava vzorca za merjenje ravni živega srebra v fluorescenčnih sijalkah in nizkotlačnih živosrebrnih virih UV-sevanja - Dopolnilo A2 (IEC 62554:2011/AMD2:2025)

General Information

• Status: Published
• Public Enquiry End Date: 31-Jul-2024
• Publication Date: 08-May-2025
• ICS: 29.140.30 - Fluorescent lamps. Discharge lamps
• Technical Committee: IESV - Lamps and related equipment
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 16-Apr-2025
• Due Date: 21-Jun-2025
• Completion Date: 09-May-2025
• Ref Project: EN 62554:2011/A2:2025 - Sample preparation for measurement of mercury level in fluorescent lamps and low-pressure mercury UV radiation sources

Relations

• Amends: SIST EN 62554:2012 - Sample preparation for measurement of mercury level in fluorescent lamps
• Effective Date: 01-Jun-2025

Overview

EN 62554:2011/A2:2025 (IEC 62554:2011/AMD2:2025) is a European amendment published by CENELEC in 2025 that updates the international standard on sample preparation for measurement of mercury level in fluorescent lamps. The amendment expands the scope to explicitly include low‑pressure mercury UV radiation sources and clarifies sample‑preparation and observational aspects relevant to mercury measurement.

What the standard covers

• Scope: Sample preparation methods for determining mercury levels in new tubular fluorescent lamps (single‑capped, double‑capped, self‑ballasted and CCFL for backlighting) and new low‑pressure mercury UV radiation sources that contain ≥ 0.1 mg mercury.
• Intended resolution: Measurement methods described target an approximate 5% resolution.
• Terminology update: Wherever “fluorescent lamp(s)” or “lamp(s)” appear in Clause 5 and Annex B, they also apply to low‑pressure mercury UV radiation sources.
• Performance observation: The amendment clarifies the behaviour of free mercury during condensation-when free mercury fully condenses the lamp’s total light output drops significantly and the discharge colour changes (the process referred to as cold spotting).

Key technical topics and requirements

• Sample‑preparation procedures tailored for a range of tubular fluorescent lamp types and low‑pressure UV sources.
• Minimum mercury content threshold for sample selection (0.1 mg or more).
• Measurement resolution expectation (order of 5%), used to set laboratory accuracy and method selection.
• Practical indicators such as light‑output drop and discharge‑colour change used to determine condensation/localization of free mercury (cold spotting), relevant during sample handling and preparation.
• Harmonization: This amendment was adopted without modification from IEC and is to be implemented nationally by CENELEC members within the specified deadlines.

Applications and users

• Who uses it: lamp manufacturers, testing laboratories, product compliance engineers, quality assurance teams, and national bodies preparing conformity assessment protocols.
• Typical applications: preparing samples for laboratory analysis of mercury content, internal quality control during lamp production, comparative testing of lamp batches, and supporting product testing programmes for environmental and safety oversight.

Related standards and implementation

• This document is Amendment 2 to IEC 62554:2011 and has been endorsed as EN 62554:2011/A2:2025 by CENELEC. National implementation deadlines are set by CENELEC (implementation by 2026‑04‑30; conflicting standards to be withdrawn by 2028‑04‑30). For full test procedures and normative references consult the complete IEC/EN publication.

Keywords: mercury measurement, sample preparation, fluorescent lamps, low‑pressure mercury UV radiation sources, IEC 62554, EN 62554, cold spotting, mercury level testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2025
Priprava vzorca za merjenje ravni živega srebra v fluorescenčnih sijalkah in
nizkotlačnih živosrebrnih virih UV-sevanja - Dopolnilo A2 (IEC
62554:2011/AMD2:2025)
Sample preparation for measurement of mercury level in fluorescent lamps and low-
pressure mercury UV radiation sources (IEC 62554:2011/AMD2:2025)
Vorbereitung des Prüfmusters zur Messung des Quecksilbergehalts in
Leuchtstofflampen (IEC 62554:2011/AMD2:2025)
Préparation des échantillons en vue de la mesure du niveau de mercure dans les
lampes fluorescentes et les sources de rayonnement UV à mercure à basse pression
(IEC 62554:2011/AMD2:2025)
Ta slovenski standard je istoveten z: EN 62554:2011/A2:2025
ICS:
29.140.30 Fluorescenčne sijalke. Sijalke Fluorescent lamps.
Discharge lamps
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62554:2011/A2

NORME EUROPÉENNE
EUROPÄISCHE NORM April 2025
ICS 29.140.30
English Version
Sample preparation for measurement of mercury level in
fluorescent lamps and low-pressure mercury UV radiation
sources
(IEC 62554:2011/AMD2:2025)
Préparation des échantillons en vue de la mesure du niveau Vorbereitung des Prüfmusters zur Messung des
de mercure dans les lampes fluorescentes et les sources Quecksilbergehalts in Leuchtstofflampen
de rayonnement UV à mercure à basse pression (IEC 62554:2011/AMD2:2025)
(IEC 62554:2011/AMD2:2025)
This amendment A2 modifies the European Standard EN 62554:2011; it was approved by CENELEC on 2025-03-18. CENELEC members
are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62554:2011/A2:2025 E

European foreword
The text of document 34A/2398/CDV, future edition 1 of IEC 62554/AMD2, prepared by SC 34A
"Electric light sources" of IEC/TC 34 "Lighting" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 62554:2011/A2:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-04-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-04-30
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62554:2011/AMD2:2025 was approved by CENELEC as a
European Standard without any modification.

IEC 62554 ®
Edition 1.0 2025-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2
Sample preparation for measurement of mercury level in fluorescent lamps and

low-pressure mercury UV radiation sources

Préparation des échantillons en vue de la mesure du niveau de mercure dans les

lampes fluorescentes et les sources de rayonnement UV à mercure à basse

pression
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.30  ISBN 978-2-8327-0164-5

– 2 – IEC 62554:2011/AMD2:2025
© IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAMPLE PREPARATION FOR MEASUREMENT
OF MERCURY LEVEL IN FLUORESCENT LAMPS AND
LOW-PRESSURE MERCURY UV RADIATION SOURCES

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC
...