International Organization for Standardization (ISO) recently in Spain, a beautiful coastal city of Barcelona, the city held an international spectacle lens wear the new standard test of the Preparatory Committee, from France, the United States, Britain, Australia, Spain and Chinese technical experts participated in the preparations for the Will be.

This meeting is aimed at countries in the world with the standard glasses and testing experts to coordinate in order to develop a new piece wear glasses testing standards. Earlier, the International Organization for Standardization responsible for the work of the technical committee has drawn up TC172/SC7WG3 wear glasses piece of the basic requirements of international standards IS O8980.5, however, international standards ISO8980.5 the requirements of low wear, the vast majority of Through the lens of spectacles can be the standard, it is difficult to distinguish between ordinary wear glasses and glasses-chip-chip of the difference in wear resistance. China glasses standards and testing experts in a number of international standard glasses meeting, should have made a distinction between ordinary wear glasses and glasses-chip-chip testing the resistance of international standards. To this end, ISOTC172/SC7WG3 decided to set up a new optical lens wear test of the international standard-setting group, the preparations for the development of new optical lens wear test of international standards.

In the course of discussion, we agreed that the spectacle lens will be divided into two categories, namely ordinary optical lens, it must meet the basic lens wear glasses ISO8980.5 requirements; the other lens wear glasses, it must meet the new Wear the requirements of international standards.

In order to wear the new standards closer to the actual use, and easy-to-use and promotion of the Working Group of Experts on the new standards for determining wear the following principles:

1. Wear the new standard should be adopted by a clear (no signs of wear and tear) and not through (there are signs of wear and tear) standard;

2. Wear the new standard ISO8980.5 similar to the use of visual inspection methods;

3. Wear the new standard should be associated with the use of the actual;

4. Wear the new standard should make the operation and working environment brought about by the smallest margin of error;

5. The new standard should wear glasses for a variety of lenses of detection, including non-coated lenses and lens coating.

In order to wear the new standards as far as possible representative, the Working Group recommends that the world’s major production and use of optical lenses, to provide their own representative lens glasses and wear test method, by the Working Group of Experts to do cycle Test and evaluation, and finally to determine the optimal method of detecting optical lens wear.

In order to expedite the development of new methods of resistance detection, the Working Group for the development of new wear-resistant standards for determining the timetable, in April 2006 to gather the world’s standard lens glasses; in October 2006 to exchange test methods and preliminary results ; In December 2006 to determine the ultimate test of optical lenses; in January 2007 with a new test to verify the lens of test methods; in April 2007 to discuss results and to identify the second round of the scheme; in October 2007 may be formed within The first draft (WD).

The Working Group of Experts agreed that in order to wear the new standards as close as possible to the actual use and easy to operate and promote, it is necessary to collect more of the world’s lens glasses, wear resistance and wear resistance of the test cycle Test, test results and will conduct more exchanges, in order to work out an objective, fair, close to the actual use of lens wear glasses detection.