REFERENCE TEST METHOD FOR RELEASE OF NICKEL FROM ALL POST ASSEMBLIES
WHICH ARE INSERTED INTO PIERCED PARTS OF THE HUMAN BODY
AND ARTICLES INTENDED TO COME INTO DIRECT AND PROLONGED CONTACT
WITH THE SKIN
This is a summary of the test method. Due to copyright regulations the full test method must be purchased
from the nominated National Standards Body.
This method is used to determine whether the nickel released from products intended to come into direct and
prolonged contact with the skin will not exceed 0.5 µg/cm2/week (0.5 micrograms per square
centimetre per week) and for Post Assemblies the limit is set at 0.2 µg/cm2/week
(0.2 micrograms per square
centimetre per week).
This European Standard specifies a method for simulating the release of nickel from consumer items in
direct and prolonged contact with the skin in order to determine whether such items release nickel at a rate
greater than 0.5 µg/cm2/week and from Post Assemblies whether such items release nickel
at a rate greater than 0.2 µg/cm2/week.
On the 25th August 2015, an amendment was published to clarify the compliance/non-compliance criteria for release
of nickel from jewellery and other metal components that may be in direct and prolonged contact with the skin by
removing the 'no decision' category and to provide a 'PASS' compliance level of 0.88µg/cm2/week
for articles intended to come into prolonged and direct contact with the skin, and of 0.35µg/cm2/week
for post assemblies.
The item to be tested for nickel release is placed in an artificial sweat test solution for 1 week. The
concentration of dissolved nickel in the solution is determined by atomic absorption spectrometry or other
appropriate analytical methodology. The nickel release is expressed in micrograms per square centimetre
per week (µg/cm2/week).
The test report for each determination shall include at least the following information:
- identification of the sample including source, date of receipt, form;
- sampling procedure;
- the reference and a short description of the method used;
- description of the sample area including the size of the sample area expressed in square centimetres;
- the volume of test solution used;
- the nickel release and its adjusted analytical result;
- if relevant, deviations from this standard method;
- any unusual features observed during the determination;
- starting and completion dates of test;
- identification of laboratory carrying out the analysis; and
- signature of laboratory manager and operator.
Copies of this standard are available from:
British Standards Institute
389 Chiswick High Road
+44 (0)20 8996 9001
+44 (0)20 8996 7001 Fax