BS EN 1810:1998, The Reference Test Method for Nickel Content
IntroductionThis 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 content in post assemblies which are inserted into pierced ears and other pierced parts of the human body during epithelization of the wound caused by piercing, whether subsequently removed or not, is equal to or less than 0,05 % (m/m).
Since 1st September 2005 this test is redundant for showing compliance with the Nickel Directive since the requirement that post assemblies contain less than 0.05% nickel was replaced by a release rate requirement.
ScopeThis European Standard specifies a method for the determination of nickel in aluminium, titanium, copper, silver, gold and their alloys and in steels by flame atomic absorption spectrophotometry. The method is primarily suitable when the nickel content of a sample lies between 0,03 % and 0,07 % (m/m).
PrincipleA test portion is dissolved in an acid medium. The resulting solution is atomized into an air-acetylene flame of the atomic absorption spectrophotometer and the absorption of the resonance energy of nickel (232,0 nm) is compared with that of calibration solutions.
Test ReportThe test report for each determination shall include at least the following information:
Other InformationCopies of this standard are available from:
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Last Updated 30th December 2016