Re: [World] Defective Glass Problem . . .

[addressis@removed]

In a message dated 1/16/03 3:10:43 AM Pacific Standard Time, moms@wcmail.net writes:


> GANA is not a regulatory agency. It's just a trade association which has issued an
> informational bulletin that appears to offer the opinion that tempered glass with
> fabricating debris is allowable under the ASTM C 1036.


The key here is they are not a regulatory agency and a trade associations objective is to help promote and defend its members, which it's doing a pretty good job, up until now.

> But GANA's bulletin does NOT say that fabricating debris defects are allowable. They
> worked on that thing for a long time, so I think it says exactly what they wanted to say,
> and nothing more.


Gary, I think you see right through their propaganda and we need to help out others that don't.  Keep up the good work.

> As for the ASTM C 1036 standard, I don't know if it ever did specifically apply to
> fabricating debris on tempered glass - but it clearly doesn't apply any more.


I think a lawyer suggested they add this little note to cover their rear, just in case they end up in court over the way the ASTM standard is being written,in favor of the glass industry and not on all the important facts.

> You can order a copy from http://www.astm.org  - It'll cost you $30, and you can download
> a PDF file right away.
>
> ASTM C1036 now says,  "This specification is applicable for laboratory and field
> evaluation only to the extent that such evaluation can be carried out in accordance with
> the test method(s) prescribed herein."
> And it ALSO now says, "There may be blemishes or other glass quality requirements that are
> not addressed in this specification."


"Other quality requirements" such as mirrors, laminating and low-e coatings as I suggested THEY need.  I think they are reading our messages and seem to be responding accordingly.

> To me, that means ASTM C1036 doesn't apply to issues like microscopic debris, because none
> of their prescribed tests actually address the issue.
>
> >>>If it is found after it is installed how is cost of installation to be recouped? <<<
>
> I don't think a builder is going to ask you that question. They already know what to do if
> they don't get what they ordered.
>
> Gary Mauer


One other little change the folks at ASTM decided to change, when observing glass for scratches, the old specification allows the viewer to stand 36" from the glass to view any scratches and then move back to the prescribed distance to detect if the scratchy can still be seen.  Now, with the new standard, the viewer must stand 160" from the glass to view any scratches and move towards the glass, to the prescribed distance, to try and find any scratches.  A big difference, in my opinion.

Stay on them Gary, with your help we will educate our builders and the window cleaners.

Thanks,

Dan Fields
Fields Construction Services, Inc.
5715 South Front Road, Building B-1
Livermore, CA   94550

Phone: 925-294-8183

Consultations and Training Seminars
1. Quality Tempered Glass Issues
2. Glass Restoration - Scratch Removal and Equipment Sales & Service
3. Construction Window Cleaning

PS - SCRAPERS DO NOT SCRATCH GLASS - FABRICATING DEBRIS DOES!!!