SIST EN ISO 2361:1999

SLOVENSKI STANDARD
SIST EN ISO 2361:1999
01-oktober-1999
Galvansko nanašanje niklja na magnetne in nemagnetne podlage - Merjenje
debeline prevleke - Magnetna metoda (ISO 2361:1982)
Electrodeposited nickel coatings on magnetic and non-magnetic substrates -
Measurement of coating thickness - Magnetic method (ISO 2361:1982)
Electrolytisch erzeugte Nickelschichten auf magnetischen und nichtmagnetischen
Grundmetallen - Messen der Schichtdicke - Magnetverfahren (ISO 2361:1982)
Revetements électrolytiques de nickel sur métal de base magnétique et non magnétique
- Mesurage de l'épaisseur - Méthode magnétique (ISO 2361:1982)
Ta slovenski standard je istoveten z: EN ISO 2361:1995
ICS:
17.040.20 Lastnosti površin Properties of surfaces
25.220.40 Kovinske prevleke Metallic coatings
SIST EN ISO 2361:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN ISO 2361:1999

---------------------- Page: 2 ----------------------

SIST EN ISO 2361:1999

---------------------- Page: 3 ----------------------

SIST EN ISO 2361:1999

---------------------- Page: 4 ----------------------

SIST EN ISO 2361:1999

---------------------- Page: 5 ----------------------

SIST EN ISO 2361:1999

---------------------- Page: 6 ----------------------

SIST EN ISO 2361:1999
2361
International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWlE~YHAPOAHAR OPf-AHMJAWlR l-l0 CTAH~APTH3ALWWWORGANISATION INTERNATIONALE DE NORMALISATION
Electrodeposited nicke1 coatings on magnetic and
non-magnetic Substrates - Measurement of coating
thickness - Magnetit method
Revetements 6lectrolytiques de nicke/ SW m&al de base magnetique et non magnetique - Mesurage de l ’6paisseur -
ASthode magnetique
Second edition - 1982-08-15
UDC 669.246.7 : 621.317.49 : 531.717 Ref. No. ISO 2361-1982 (EI
dimensional measurement, thickness.
Descriptors : nicke1 coatings,
Price based on 4 pages

---------------------- Page: 7 ----------------------

SIST EN ISO 2361:1999
Foreword
ISO (the International .Organization for Standardization) is a worldwide federation of
national Standards institutes (ISO member bedies). The work of developing Interna-
tional Standards is carried out through ISO technical committees. Every member body
interested in a subject for which a technical committee has been set up has the right to
be represented on that committee. International organizations, governmental and non-
governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council.
International Standard ISO 2361 was developed by Technical Committee ISO/TC 107,
Metallic and other non-organic coatings, and was circulated to the member bodies in
November 1980.
lt has been approved by the member bodies of the following countries :
Australia Italy Spain
Bulgaria Japan Sweden
Czechoslovakia Netherlands Switzerland
Egypt, Arab Rep. of Poland United Kingdom
France Portugal USA
Hungary Romania USSR
India South Africa, Rep. of
No member body expressed disapproval of the document.
This second edition cancels and replaces the first edition (i.e. ISO 2361-1972).
0 International Organkation for Standardkation, 1982 l
Printed in Switzerland

---------------------- Page: 8 ----------------------

SIST EN ISO 2361:1999
ISO 2361-1982 (E)
INTERNATIONAL STANDARD
Electrodeposited nicke1 coatings on magnetic and
non-magnetic Substrates - Measurement of coating
thickness - Magnetit method
1 Scope and field of application 3 Principle
This International Standard specifies the method of using Coating thickness instruments of the magnetic type measure
either the magnetic attraction between a permanent magnet
coating thickness instruments of the magnetic type for non-
destructive measurements of the thickness of electrodeposited and the coating/substrate combination, or the reluctance of a
nicke1 coatings on magnetic or non-magnetic Substrates. magnetic flux path passing through the coating and the
Substrate.
The method may not be applicable to autocatalytic (electroless)
nicke1 coatings depending on their Chemical composition.
For the purposes of this International Standard, two types of 4 Factors affecting the measuring
nicke1 coating are distinguished :
accuracy*)
a) nicke1 coatings on magnetic Substrates (type A
The following factors may affect the accuracy of
coatings);
measurements of coating thickness.
b) nicke1 coatings on non-magnetic Substrates (type B
coatings).
4.1 Coating thickness
lt should not be assumed that all instruments are applicable to
The precision of a measurement changes with coating
both types of coating.
thickness depending on the instrument design. For thin
coatings, the precision is constant, independent of the
The effective measuring ranges of instruments using the prin-
thickness. For thick coatings, the precision is an approximately
ciple of magnetic attraction are up to 50 Pm for type A
constant fraction of the thickness.
coatings, and up to 25 Pm for type B coatings.
For instruments using the principle of reluctance, the effective
4.2 Magnetit properties of the basis metal
ranges are much greater and measurements up to 1 mm, or
(type A coatings only)
more, tan be made on both types of coating.
Thickness measurements by the magnetic method are affected
by variations in the magnetic properties of the basis metal. For
practical purposes, magnetic variations in low carbon steels
2 References
tan be considered to be insignificant.
ISO 1463, Metallic and Oxide coatings - Measuremen t of
cos ting thickness - Microscopical method.
4.3 Basis metal thickness (type A coatings only)
ISO 2064, Metallic and other non-organic coatings - Defini-
tions and conventions concerning the measurement of For each instrument, there is a critical thickness of basis metal
thickness. above which measurements will not be affected by an increase
in thickness. Since it depends on the instrument probe and the
ISO 2177, Metallic coatings - Measurement of coating nature of the basis metal, its value should be determined ex-
thickness - Coulometric method b y anodic dissolution.1) perimentally, unless it is specified by the manufacturer.
1) At present at the Stage of draft. (Revision of ISO 21774972.)
2) For the purpose of this International Standard, the measuring uncertainty is defined as that obtained with an instrument correctly calibrated
and used.

---------------------- Page: 9 ----------------------

SIST EN ISO 2361:1999
ISO 23614982 (El
4.4 Edge effects foreign material that prevents intimate contact between the
probe and the surface of the coating. The probe tip should be
The method is sensitive to abrupt changes in surface contour of
checked for cleanliness.
the test specimen. Therefore, measurements made too near an
edge or inside corner will not be valid unless the instrument is
4.11 Magnetit properties of the coating
specifically calibrated for such measurements. The effect may
extend up to about 20 mm from the discontinuity, depending
Measurements are affected by variations in the magnetic
on the instrument.
properties of the coating. These properties depend on the
conditions under which the deposit is made, the type and com-
4.5 Curvature Position of the coating, and its stress conditions. Heat treat-
ment at 400 OC for 30 min will equalize the magnetic
Measurements are affected by the curvature of the test
permeability of dull (sulphur-free or nearly sulphur-free) nicke1
specimen. The influence of curvature varies considerably with
coatings of the same composition. Bright nicke1 deposits may
the make and type of instrument, but always becomes more
or may not have the same magnetic properties after heat treat-
pronounced as the radius of curvature decreases.
ment; heat treatment may also darnage the article. The
magnetic properties of multiple layer nicke1 coatings will also
Instruments with two-pole probes may also produce different
depend on the relative thickness of each of the layers.
readings if the poles are aligned in planes parallel or perpen-
dicular to the axis of a cylindrical surface. A similar effect tan
4.12
Nickel coatings on the back of the Substrate
occu
...