"Clear" Rear Window Glass? Survey:
- Thread starter DaveP
- Start date
warmpancakes
New member
Re: "Clear" Rear Window Glass? Survey:
screw it ask an honest question and people get their panties in a wad, you misinformed people can continue to drink the kool aid
screw it ask an honest question and people get their panties in a wad, you misinformed people can continue to drink the kool aid
Last edited:
DaveP
Active member
Re: "Clear" Rear Window Glass? Survey:
If you want to participate in my survey, fine. If not, stay out. Go start your own thread if you want to discuss RPO's and "Factory Mistakes". And you can ponder this:
If you want to participate in my survey, fine. If not, stay out. Go start your own thread if you want to discuss RPO's and "Factory Mistakes". And you can ponder this:
- AA3 is "deep tint, side windows only".
- AJ1 is "deep tint, rear side windows, and rear door windows".
- My 93 Typhoon doesn't have rear doors. My 93 Blazer 4-door does.
- My Blazer has AJ1, AND a Grey back window.
- My 93 Typhoon[edit:] has no code, and has a clear back window.
- They were built 2 months apart, in two different plants.
Last edited:
DaveP
Active member
Re: "Clear" Rear Window Glass? Survey:
Thanks, Mike.
Another early 93. And a white one, too. The glass date is November, 1992.
No one has noticed this before, have they? Now there's 4. I'll post a pic of my 93 clear glass next week. It's about an hour away.
Thanks again, Mike.
My '93 Ty #0761 (yes, that's a dirty back glass....I DD this b*tch).
Thanks, Mike.
Another early 93. And a white one, too. The glass date is November, 1992.
No one has noticed this before, have they? Now there's 4. I'll post a pic of my 93 clear glass next week. It's about an hour away.
Thanks again, Mike.
DaveP
Active member
Re: "Clear" Rear Window Glass? Survey:
"Misinformed"??? That's directed at ME? Surely, you jest...
"Misinformed"??? That's directed at ME? Surely, you jest...
13Pelle
Active member
CGL
Member
Re: "Clear" Rear Window Glass? Survey:
My #1274 is like his.
Garnet/Gray
1993
27- 3
SOLID TEMPERED
1 HEATED (then nothing)
DOT 18 M508
A pic tomorrow when it´s not dark outside.
My '93 Ty #0761 (yes, that's a dirty back glass....I DD this b*tch).
My #1274 is like his.
Garnet/Gray
1993
27- 3
SOLID TEMPERED
1 HEATED (then nothing)
DOT 18 M508
A pic tomorrow when it´s not dark outside.
DaveP
Active member
Re: "Clear" Rear Window Glass? Survey:
Hey Tony and Ken:
GO F UCK YOURSELVES
I don't post in threads you start, so stay out of mine, OK?
Mods/Admin: Just delete this whole damn thread. Took less than a half hour to get it f ucked up. My transmission thread took an hour. F uck it. I'm done with these children.
Hey Tony and Ken:
GO F UCK YOURSELVES
I don't post in threads you start, so stay out of mine, OK?
Mods/Admin: Just delete this whole damn thread. Took less than a half hour to get it f ucked up. My transmission thread took an hour. F uck it. I'm done with these children.
DaveP
Active member
Re: "Clear" Rear Window Glass? Survey:
OK. Cool. Another one.
Your glass date is January, 1993. (The "1" in front of "HEATED").
Here's something else I'm noticing: The clear windows have "M508". This is "Model", and the number is a specification that contains tint, thickness, and other information regarding 'specification'.So I guess we want to see "M508" on a clear window, too.
Thanks for participating.
OK. Cool. Another one.
Your glass date is January, 1993. (The "1" in front of "HEATED").
Here's something else I'm noticing: The clear windows have "M508". This is "Model", and the number is a specification that contains tint, thickness, and other information regarding 'specification'.So I guess we want to see "M508" on a clear window, too.
Thanks for participating.
CGL
Member
DaveP
Active member
Re: "Clear" Rear Window Glass? Survey:
No. It can apply it to all Typhoons. So let's do it.
First of all, are they "clear"? Don't get fooled if aftermarket tint has been applied. The deep tint are the same as the 1/4 windows. The "clear" is the same as the front doors. Has to be a 'clear' rear window to be of interest for the survey. If the stamp includes "M508", and no "Grey" this should be a 'clear'.
Let's re-cap what we need to keep the results 'valid':
Thanks for participating, Sean.
No. It can apply it to all Typhoons. So let's do it.
First of all, are they "clear"? Don't get fooled if aftermarket tint has been applied. The deep tint are the same as the 1/4 windows. The "clear" is the same as the front doors. Has to be a 'clear' rear window to be of interest for the survey. If the stamp includes "M508", and no "Grey" this should be a 'clear'.
Let's re-cap what we need to keep the results 'valid':
- It must be 'clear'. Same shade as the front door windows.
- Using the examples above, decipher the glass date. If this date precedes the PAS date, it's most likely glass that is origional to the truck. (A pic of the stamp is very helpful. I can help verify the dates from a pic).
- The truck number and color may help with identifying trends for the clear glass usage.
Thanks for participating, Sean.
DaveP
Active member
Re: "Clear" Rear Window Glass? Survey:
OK. I left out the non-pertinent pieces of the stamp. But here we go. I talked about the "M"[odel] number above. Looks like we need "M508" for a clear window.
"AS-*" means "American Standard". 1= Laminated. (Like a windshield. Look on the RH side, below the tint bar, and you will see "AS1").
2=Tempered. Most automotive glass (not windshields) is tempered. It breaks into little balls.
3= I don't know. I saw it on my grey blazer window just today.
OK. I left out the non-pertinent pieces of the stamp. But here we go. I talked about the "M"[odel] number above. Looks like we need "M508" for a clear window.
"AS-*" means "American Standard". 1= Laminated. (Like a windshield. Look on the RH side, below the tint bar, and you will see "AS1").
2=Tempered. Most automotive glass (not windshields) is tempered. It breaks into little balls.
3= I don't know. I saw it on my grey blazer window just today.
Re: "Clear" Rear Window Glass? Survey:
AS stands for American Standard. The number indicates the position in the vehicle where the glass may be used, based on its optical quality. AS1 is the clearest glass (at least 70% light transmission), is laminated, and can be used anywhere in a motor vehicle (typically just the windshield). AS2 is tempered with at least 70% light transmissions, and can be used anywhere except the windshield, and AS3 can be used in certain locations in certain vehicles (and can be laminated or tempered, and has less than 70% light transmission).
AS stands for American Standard. The number indicates the position in the vehicle where the glass may be used, based on its optical quality. AS1 is the clearest glass (at least 70% light transmission), is laminated, and can be used anywhere in a motor vehicle (typically just the windshield). AS2 is tempered with at least 70% light transmissions, and can be used anywhere except the windshield, and AS3 can be used in certain locations in certain vehicles (and can be laminated or tempered, and has less than 70% light transmission).
DaveP
Active member
Re: "Clear" Rear Window Glass? Survey:
Thanks for that Mike. I was using definitions and knowledge from my Corvette Judging material. I did not know light transmission is part of the spec.
Now I know why "AS1" on the windshield, is below the tint, and has an arrow pointing "down". That's where the AS1 spec is. Below that arrow. Above it, it's too dark to be used in the windshield position.
I've wondered about that arrow for over 40 years. Now I know. I learn something everyday. Thanks.
Thanks for that Mike. I was using definitions and knowledge from my Corvette Judging material. I did not know light transmission is part of the spec.
Now I know why "AS1" on the windshield, is below the tint, and has an arrow pointing "down". That's where the AS1 spec is. Below that arrow. Above it, it's too dark to be used in the windshield position.
I've wondered about that arrow for over 40 years. Now I know. I learn something everyday. Thanks.
Re: "Clear" Rear Window Glass? Survey:
If I have these codes will I be able to order the cleear glass through a regular glass company?
Or is the clear glass called something specific? I've tried to get clear rear glass through the local glass company that I normally use and they can't seem to verify if it is actually going to come in clear.
Thanks for the help,
Nick
If I have these codes will I be able to order the cleear glass through a regular glass company?
Or is the clear glass called something specific? I've tried to get clear rear glass through the local glass company that I normally use and they can't seem to verify if it is actually going to come in clear.
Thanks for the help,
Nick
Re: "Clear" Rear Window Glass? Survey:
fyi, i stole that paragraph from the National Glass Association. www.glass.org
researching this a little more...
The M number is a model number for the piece of glass, which identifies the type of construction. The M number is unique to the manufacturer, so one an M number of M312 by one manufacturer could be different than glass labeled as M312 by another manufacturer. It identifies the glass construction, including the color and thickness. An M number may be used by multiple part numbers.
the DOT ### identifies the manufacturer's DOT number: http://www.carwindshields.info/DOT_db.htm
Here is a good reference for identifying the markings: http://www.carwindshields.info/windshieldmarkings.htm
still trying to find out conclusive support for the "arrow"
fyi, i stole that paragraph from the National Glass Association. www.glass.org
researching this a little more...
The M number is a model number for the piece of glass, which identifies the type of construction. The M number is unique to the manufacturer, so one an M number of M312 by one manufacturer could be different than glass labeled as M312 by another manufacturer. It identifies the glass construction, including the color and thickness. An M number may be used by multiple part numbers.
the DOT ### identifies the manufacturer's DOT number: http://www.carwindshields.info/DOT_db.htm
Here is a good reference for identifying the markings: http://www.carwindshields.info/windshieldmarkings.htm
still trying to find out conclusive support for the "arrow"
Re: "Clear" Rear Window Glass? Survey:
some arrow information:
49 CFR 571.205 - Standard No. 205, Glazing materials.
Code of Federal Regulations - Title 49: Transportation
*snip*
S5.1.3Location of arrow within AS markings. In ANSI/SAE Z26.11996 (August 11, 1997) Section 7. Marking of Safety Glazing Materials, on page 33, in the right column, in the first complete sentence, the example markings AS1, AS14 and AS2 are corrected to read AS1, AS14 and AS2.
Note that the arrow indicating the portion of the material that complies with Test 2 is placed with its base adjacent to a horizontal line.
Taken from http://cfr.vlex.com/vid/571-205-standard-glazing-materials-19948586
I'm not sure i follow what this says, but at least it references the arrow. :lol:
some arrow information:
49 CFR 571.205 - Standard No. 205, Glazing materials.
Code of Federal Regulations - Title 49: Transportation
*snip*
S5.1.3Location of arrow within AS markings. In ANSI/SAE Z26.11996 (August 11, 1997) Section 7. Marking of Safety Glazing Materials, on page 33, in the right column, in the first complete sentence, the example markings AS1, AS14 and AS2 are corrected to read AS1, AS14 and AS2.
Note that the arrow indicating the portion of the material that complies with Test 2 is placed with its base adjacent to a horizontal line.
Taken from http://cfr.vlex.com/vid/571-205-standard-glazing-materials-19948586
I'm not sure i follow what this says, but at least it references the arrow. :lol:
Re: "Clear" Rear Window Glass? Survey:
Finally found some definitions of the "tests" that are carried out on the glass. So this further explains what the "test 2" that the arrow is indicating...its simply the luminous trasmittance. So, as DaveP mentions earlier about 'too dark'...yes the arrow is indicating which section of the windshield passed the luminosity test.
Luminous Transmittance Test 2.....
ANSI Z26.1 requires 70 percent transmittance.
ECE R43 requires 75 percent transmittance.
Fracture Test 7...................
Standard No. 205 and Z26-1996 require fragments to have a maximum allowable mass of 4.25g.
ECE R43 requires a minimum number of particles to be included in a 5 cm x 5 cm square.
Shot Bag Test 8...................
ECE R43 does not have a shot bag test.
Dart Test 9, 10 & 11..............
R43 does not have a dart test.
Weathering Test 16................
ECE R43 requires a mercury vapor arc lamp.
ANSI Z26.1-1996 requires a xenon lamp.
Current Standard No. 205 and Canadian Standard No. 205 require a carbon arc lamp.
Wire Glass........................
Canadian Standard No. 205 allows wire glass to be used, while ANSI Z26.1-1996 does not.
Finally found some definitions of the "tests" that are carried out on the glass. So this further explains what the "test 2" that the arrow is indicating...its simply the luminous trasmittance. So, as DaveP mentions earlier about 'too dark'...yes the arrow is indicating which section of the windshield passed the luminosity test.
Luminous Transmittance Test 2.....
ANSI Z26.1 requires 70 percent transmittance.
ECE R43 requires 75 percent transmittance.
Fracture Test 7...................
Standard No. 205 and Z26-1996 require fragments to have a maximum allowable mass of 4.25g.
ECE R43 requires a minimum number of particles to be included in a 5 cm x 5 cm square.
Shot Bag Test 8...................
ECE R43 does not have a shot bag test.
Dart Test 9, 10 & 11..............
R43 does not have a dart test.
Weathering Test 16................
ECE R43 requires a mercury vapor arc lamp.
ANSI Z26.1-1996 requires a xenon lamp.
Current Standard No. 205 and Canadian Standard No. 205 require a carbon arc lamp.
Wire Glass........................
Canadian Standard No. 205 allows wire glass to be used, while ANSI Z26.1-1996 does not.