LGT Institute


Product testing

Procuring goods from China is an advantage, on the one hand, since the production costs are reasonable, yet it unfortunately also poses several risks. Product safety is an important issue, as is the fact that a company’s reputation can be damaged by substances that are faulty or even pose health risks. Experience has shown that it is therefore wise to additionally authenticate each declaration of conformity signed by a producer in order to verify its reliability. It is advisable to perform this check not only for reasons of product safety and to prevent a company’s reputation from becoming damaged, but also with regard to the due diligence demanded by legislation.
produkt-pruefung2
The standard tests necessary in this respect are defined in the norms DIN EN 12472 for corrective eyeglasses, DIN EN 1836 for sunglasses, DIN EN 12472 for the simulation of wear, and DIN EN 1811 for the release of nickel, and are conducted in specially equipped laboratories. The test results are documented in detailed test reports and subsequently sent to the customer in accordance with the relevant rules (together with the tested sample upon customer request).

At regular intervals, it is also advisable to test the reliability of the delivered goods which do not necessarily require testing according to the above-mentioned standards. The aim of this procedure is to test specific quality criteria under very realistic conditions, since it is these criteria that will later on determine whether the product is accepted on the market or not.

For that reason, LGTI offers so called “reliability tests”. These are additional tests focusing on paint adhesion, corrosion resistance, ductility and stability. These findings are documented in reports as well, and subsequently sent to the customer (together with the tested sample upon customer request).

Customer benefits:


You can rest assured that the products procured in China
meet German legal stipulations.

You can be certain that you will supply your customers
(opticians or end consumers) with safe products, thereby
protecting them from potential health risks.


You can maintain your reputation as a provider of safe,
high-quality products, thereby preventing damage from
being caused to your company’s reputation as a result of
faulty products that pose health risks.