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BS EN 16128:2015

BS EN 16128:2015

$167.15

Ophthalmic optics. Reference method for the testing of spectacle frames and sunglasses for nickel release

Published By Publication Date Number of Pages
BSI 2015 40
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This European Standard specifies the reference method for the testing of spectacle frames, ready-to-wear spectacles, sunglasses and other items for eye and face protection for nickel release. The reference method supports the demonstration of conformity with the limit value for nickel release of 0,5 µg/cm2/week set forth by European Regulation. The reference method involves the procedural steps shown in Figure 1 and described in Clause 4. This document applies to those parts of metal spectacle frames and those metal parts of combination spectacle frames that are intended to come into direct and prolonged contact with the skin of the wearer. This document also applies to those relevant metal parts of ready-to-wear spectacles, sunglasses and other items for eye and face protection. NOTE The reference method for articles apart from spectacle frames, ready-to-wear spectacles, sunglasses and other items for eye and face protection is specified in EN 1811.

PDF Catalog

PDF Pages PDF Title
4 Contents Page
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Principle
5 Selection of test samples
11 6 Simulation of wear and corrosion
6.1 Preparation of test samples
12 6.2 Procedure
7 Coating test
7.1 General
7.2 Apparatus and consumables
13 7.3 Preparation of test samples for the coating test
7.3.1 Parts to be tested
7.3.2 Dismantling and/or cutting and/or masking
7.3.2.1 General
14 7.3.2.2 Dismantling
7.3.2.3 Cutting
7.3.2.4 Masking
15 7.3.3 Determination of test area
7.3.4 Preparation of electrical contact area
7.4 Preparation of saline solution
7.5 Procedure
7.5.1 Preparation of the electro-chemical cell
16 7.5.2 Insertion and connection of the test part in the electro-chemical cell
7.5.3 Determination of open circuit potential and measurement of electrochemical impedance of test samples
17 7.5.4 Calibration and verification of the equipment
7.6 Calculation of results
7.6.1 General
7.6.2 Criteria for pass or fail of the test sample
7.7 Test report
18 8 Release of nickel and its quantitative analytical detection (migration test)
8.1 General
8.2 Apparatus and consumables
20 8.3 Preparation of test samples for the migration test
8.3.1 Parts to be tested
8.3.2 Guidance on selection of test areas on the parts to be tested
21 8.3.3 Dismantling and degreasing
8.4 Procedure
8.4.1 Preparation of test paper including determination of its area
22 8.4.2 Preparation of artificial sweat solution
8.4.2.1 General
8.4.2.2 Reagents
23 8.4.2.3 Apparatus
8.4.2.4 Preparation of artificial sweat solution
8.4.3 Applying artificial sweat solution to the test paper and attaching it to the test sample
24 8.4.4 Blank sample
8.4.5 Incubation of test sample with test paper attached (release of nickel into paper)
8.4.6 Retrieval of the test paper from the test samples
8.4.7 Analysis of the test papers for nickel
8.4.7.1 General
25 8.4.7.2 Extraction procedure
8.4.7.3 Determination of nickel release
8.4.7.4 Quality control solution
26 8.5 Calculation of migration test results
27 8.6 Interpretation of migration test results
8.6.1 General
8.6.2 Assessment of compliance
8.7 Test report
29 Annex A (informative)Cutting and masking of test samples (Coating test)
A.1 Fronts
30 A.2 Sides (temples)
31 Annex B (normative)Selection of test areas and application of the test paper (Migration test)
B.1 General
B.2 Rims
32 B.3 Bridge
33 B.4 Brace bar
34 B.5 Sides
36 B.6 Trims

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BS EN 16128:2015
$167.15