BS EN ISO 12870:2018
$167.15
Ophthalmic optics. Spectacle frames. Requirements and test methods
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 40 |
This International Standard specifies fundamental requirements for unglazed spectacle frames designed for use with all prescription lenses. It is applicable to frames at the point of sale by the manufacturer or supplier to the retailer.
This International Standard is applicable to all spectacle frame types, including rimless mounts, semirimless mounts and folding spectacle frames. It is also applicable to spectacle frames made from natural organic materials.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword |
| 7 | Foreword |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 Requirements 4.1 General |
| 11 | 4.2 Physiological compatibility 4.2.1 Construction 4.2.2 General physiological compatibility 4.2.3 Nickel release |
| 12 | 4.2.4 Clinical evaluation 4.3 Measurement system 4.4 Dimensional tolerances on nominal size 4.5 Tolerance on screw threads 4.6 Dimensional stability at elevated temperature 4.7 Resistance to perspiration |
| 13 | 4.8 Mechanical stability 4.8.1 Bridge deformation 4.8.2 Lens retention characteristics 4.8.3 Endurance |
| 14 | 4.9 Resistance to ignition 4.10 Resistance to optical radiation 5 Selection of test samples 5.1 General 5.2 Testing for nickel release 5.3 Change in spectacle frame model 6 Preparation and conditioning of test samples 6.1 Test lenses |
| 15 | 6.2 Sample conditioning and test conditions 7 Testing, inspection and compliance 7.1 Testing |
| 16 | 7.2 Inspection and examination 7.3 Compliance |
| 17 | 8 Test methods 8.1 General |
| 18 | 8.2 Test for dimensional stability at elevated temperature 8.2.1 Apparatus 8.2.2 Procedure 8.3 Test for resistance to perspiration 8.3.1 Apparatus and reagents |
| 19 | 8.3.2 Procedure 8.4 Bridge deformation and lens retention test 8.4.1 Apparatus |
| 20 | 8.4.2 Procedure |
| 21 | 8.5 Endurance test 8.5.1 Apparatus |
| 22 | 8.5.2 Procedure |
| 23 | 8.6 Test for resistance to ignition 8.6.1 Apparatus 8.6.2 Procedure 8.7 Test for resistance to optical radiation 8.7.1 Apparatus |
| 24 | 8.7.2 Procedure 9 Marking |
| 25 | 10 Additional information to be supplied by the manufacturer or other person placing the product on the market |
| 26 | 11 Reference to this International Standard |
| 27 | Annex A (informative) Recommendations for the design of spectacle frames |
| 30 | Annex B (informative) Examples of layout of test equipment |
| 33 | Annex C (informative) European requirements and legislation on nickel release |
| 34 | Bibliography |
