If anyone is interested in learning more about microfilm, you should look
at the November 1963 INAV. It includes an article about measuring
thickness that was developed by Bill Bigge. It includes a chart relating
the color to the thickness. Bill also weighed some MicroDyne microfilm and
you can use that weight along with the chart to estimate how much a given
color of film should weigh. His weight puts red violet film, which is
slightly thicker than straw brown, at approximately 17mg/100si. Silver
film should weigh 10-12mg/100si, or about a third the weight of the
lightest Y2K2.
On Wed, Jan 13, 2016 at 1:33 PM, Jake Palmer <82.jake_at_gmail.com> wrote:
> That list is was pretty complete at the time it was made, but it's a
> little too old for OS Film. It also doesn't have any information on
> microfilm, but I don't think you could call that a common covering material
> these days.
>
> On Wed, Jan 13, 2016 at 1:03 PM, Nick Ray lasray_at_gmail.com
> [Indoor_Construction] <Indoor_Construction_at_yahoogroups.com> wrote:
>
>>
>>
>> Mark Bennett compiled information for all the common covering materials
>> and posted it in the files section several years ago. It is titled Covering
>> Materials Weights.txt
>>
>> Regards,
>>
>> Nick Ray
>>
>> Sent from my iPhone
>>
>> On Jan 13, 2016, at 7:57 AM, dweigt47_at_gmail.com [Indoor_Construction] <
>> Indoor_Construction_at_yahoogroups.com> wrote:
>>
>>
>>
>> Wow! There's a load of great info in this exchange! Has anyone ever
>> compiled stuff like that and posted it somewhere? I think it would be a
>> great online resource for builders and lurkers, not just today, but in the
>> future. I have converted it to a text document, with just the names and
>> dates, not the links. If there was interest and permission, I could post it
>> to the Files section.
>>
>> Don Weigt
>>
>>
>>
>
>
Received on Mon Jan 18 2016 - 08:35:00 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:48 CET