On 8/20/2017 6:52 PM, U.S. Janet B. wrote:

>>
>> I wonder about them. Just because they are not certified does not mean
>> they are no good. I used a welder's glass the last time we had a
>> partial. For some certifying agencies, this is a money grab for them.
>
> It isn't really an agency. NASA has issued a list of approved labs
> that produce glasses to standard. All you have to do is show that you
> purchased your glasses that you sell from one of the labs. I noticed
> that a lot of the glasses were produced in China but still had all the
> required coding. I wouldn't trust those.
> Janet US
>


China has done some questionable things but they are capable of making
high quality products. I'd use them.