Lightweight Sekurit quarter glass

[Jim Becker]

Can anyone help me decode all the info on this glass?

[911MRP]

I think UNECE Reg. 43 standard for safety glass used in road vehicles was only adopted from around 1981. So doubt is earlier than that and could be quite a bit later. Not period authentic marking for early 911 era.
Might be interesting for someone if it is actually thinner lighter than standard as implies in the post — what does it measure with accurate gauge ?

Steve

[Jim Becker]

Thank you Steve. Do you know what the rest of the markings mean? I will try to check the thickness with a micrometer. Not using a micrometer its about 3 to 3.1 MM.

[Cliff]

Also, try a 3 mm open end wrench

[Nickelplated5s]

Check the 'difference' thread above yours with this time stamp. I've got a micrometer and go measure my period correct but not thin wall.

[Jim Becker]

Thank you. Appreciate your input.

[BOYER73S]

3mm is pretty thin, early 73 RS was 4mm approx

[911MRP]

Thank you Steve. Do you know what the rest of the markings mean? I will try to check the thickness with a micrometer. Not using a micrometer its about 3 to 3.1 MM.

As said not expert but I think it decodes as follows..

DOT27 denotes SEKURIT SAINT-GOBAIN DEUTSCHLAND — the industry has seen a lot of acquisitions and divestment activity so the physical plant and its owner made might seem different over time due to corporate-level deals and implications on branding.

e mark in a circle shows the automotive equipment was certified under the regulations issued by the Economic Commission for Europe (ECE) the e3 specifically denotes certified by regulators in France. Each country has a different number in the ECE scheme.

ESG is single pane toughened safety glass that is thermal tempered and designed to shatter into smaller blunt pieces rather than more dangerous shards. I believe the H denotes the pane is put through a heat soak test to identify inclusions that might cause it to shatter in thermal or other shock situations

AS2 glass is automotive glass that meets American Standard 2 safety requirements windows with a tint that allow at least 70% light to be transmitted. It is used in side and rear windows of cars, but not windscreens which are typically laminated and conform to AS1.

I believe M31 denotes the design shape dimensions etc of the pane of glass in context of the manufacturer’s product range

UNECE Reg. 43 standard for safety glass used from around 1981 the six digits in this case 001057 is the approval number within Regulation 43 assigned to this glass part

The Porsche P in triangle mark from around 1968 used to denote original parts are not just glass is well known here so shouldn’t need further explanation.

Steve

[Nickelplated5s]

https://www.early911sregistry.org/fo...968-door-glass

[Ernie W]

I have a set of SCRS 954 glass, here is the marking and thickness of the glass