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Re: Help Preserving Book Collection
Shirrif
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Morinehtar wrote:
The temperature measurement is accurate, so I guess the RH measurement is not very far off. Additionally, I've replaced the CFL light bulbs for LED and installed 100% light-blocking curtains on that room. This will also prevent the room from getting too hot during the day. I think I'm good with regards to atmospheric conditions

The issue I have is that everything is piled up on my old wood-plastic composite laminate bookcase. This will change soon.

I was looking at the following bookcases:

Ash veneer: http://www.ikea.com/us/en/catalog/pro ... ery=591.553.30#/S59155330

Powder-coated steel: http://www.officedepot.com/a/products ... s-Series-Bookcases-345-x/

http://www.sears.com/sandusky-lee-san ... 2&blockNo=2&blockType=G2#

Powder coated steel is not as fashionable as wood and doesn't match anything in my house, but it probably requires less maintenance as there's no need to worry for placing the acid-free paper between the wood and the books?


I think the problem with RH sensors is just that they are intrinsically less reliable than temperature sensors. I don't think you can infer that one sensor is accurate on a device because the other is. I would personally trust an uncalibrated sensor to within 5-10%, based on my own observations. Truthfully, you are simply going to know if your environment is dry enough or too damp, anyway. If it feels nice and dry, it is. If the air feels moist, you have a problem. We aren't talking about preserving the dead sea scrolls here! :)

http://www.qualitydigest.com/inside/t ... ive-humidity-sensors.html

Posted on: 2016/10/11 20:22


Re: Fantastic Maps: From Winnie the Pooh to Game of Thrones British Library 10th November 2016
Shirrif
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That looks like it would be well worth attending for anyone in the vicinity.

Posted on: 2016/10/11 2:08


Re: Help Preserving Book Collection
Shirrif
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Morinehtar wrote:
Results:

RH oscillates between 39-50%.

Temperature oscillates between 70-80F.


If accurate, those figures are fine. Ideally, maybe 45% or below at the top-end, but I wouldn't get stressed about that.

Posted on: 2016/10/10 18:49


Re: New Book Releases
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nusilver wrote:
Thank you for the answer!

We're on a three-week holiday and driving from Auckland down to Fiordland on the South Island. Tonight we arrived in Wellington after a second visit to the Hobbiton Movie Set this morning... we took several photos with the facsimile first edition of The Hobbit in front of various holes and other landmarks, but here's the only one I have access to until we get back to the states and can unload photos from our camera.

This one was shot with a measly iPhone 6 camera but is still stunningly gorgeous, which I attribute entirely to Hobbiton itself.


If you like North Island, you will be blown away by South Island! The scenery here is pretty amazing. I've somewhat gotten used to it, but then every so often I will look up at The Remarkables and think "Wow".

Good to see you putting that copy of the Hobbit to good use :)

Posted on: 2016/10/10 3:29


Re: Help Preserving Book Collection
Shirrif
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Morinehtar wrote:
Finally bought a device that can measure relative humidity and temperature, and records daily highs and lows. Will report tomorrow.


Unless it expensive and calibrated expect it to be not terribly accurate. It might be, it just probably won't be. Both my dehumidifiers read about 5% different from each other (same brand and model).

Posted on: 2016/10/9 17:22

(edited)



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