Zinc and/or aluminium based coatings on steel — Determination of coating mass per unit area and chemical composition — Gravimetry, inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry

ISO 17925:2004 specifies methods of determining the coating mass per unit area by gravimetry and chemical composition on one side-surface of zinc- and/or aluminium-based coatings on steel by means of inductively coupled plasma atomic emission spectrometric or flame atomic absorption spectrometry. This method is applicable to zinc contents between 40 % (mass fraction) and 100 % (mass fraction); aluminium contents between 0,02 % (mass fraction) and 60 % (mass fraction); nickel contents between 7 % (mass fraction) and 20 % (mass fraction); iron contents between 0,2 % (mass fraction) and 20 % (mass fraction); silicon contents between 0,2 % (mass fraction) and 10 % (mass fraction); lead contents between 0,005 % (mass fraction) and 2 % (mass fraction). These test methods are intended as referee methods to test such materials for compliance with mass per unit area and compositional specifications of International Standards.

Revêtements à base de zinc et/ou d'aluminium sur acier — Détermination de la masse surfacique et de la composition chimique du revêtement — Gravimétrie, spectrométrie d'émission atomique avec plasma induit par haute fréquence et spectrométrie d'absorption atomique dans la flamme

General Information

Status
Published
Publication Date
28-Oct-2004
Current Stage
9020 - International Standard under periodical review
Start Date
15-Jan-2024
Completion Date
15-Jan-2024
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ISO 17925:2004 - Zinc and/or aluminium based coatings on steel -- Determination of coating mass per unit area and chemical composition -- Gravimetry, inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry
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Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 17925
First edition
2004-11-01

Zinc and/or aluminium based coatings on
steel — Determination of coating mass
per unit area and chemical
composition — Gravimetry, inductively
coupled plasma atomic emission
spectrometry and flame atomic
absorption spectrometry
Revêtements à base de zinc et/ou d'aluminium sur acier —
Détermination de la masse surfacique et de la composition chimique du
revêtement — Gravimétrie, spectrométrie d'émission atomique avec
plasma induit par haute fréquence et spectrométrie d'absorption
atomique dans la flamme




Reference number
ISO 17925:2004(E)
©
ISO 2004

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ISO 17925:2004(E)
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©  ISO 2004
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ii © ISO 2004 – All rights reserved

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ISO 17925:2004(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Principle . 2
4 Reagents . 2
5 Apparatus. 5
5.1 General. 5
5.2 Inductively coupled plasma atomic emission spectrometer (ICP-AES). 5
5.3 Flame atomic absorption spectrometer (FAAS) . 6
5.4 Platinum crucible . 7
6 Sampling and samples . 7
7 Determination procedure . 7
7.1 Sample preparation. 7
7.2 Determination procedure for mass per unit area . 7
7.3 Procedure of determination of chemical composition by inductively coupled plasma
atomic emission spectrometric method. 8
7.4 Procedure of determination of chemical composition by flame atomic absorption method
— zinc, aluminium, nickel and iron contents. 14
8 Expression of results. 14
8.1 Expression of result in mass per
...

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