How can I remove years of nicotine staining from a Fluke 8842A?

[mc172]

UV does the "bikini effect":

[Specmaster]

UV does the "bikini effect":

Yes I understand that it will do that, but how does the UV get beneath the meter, I can understand the front, top and or sides may well be exposed to UV especially if the source is sunlight, but surely it would safe to expect the underside of the meter should suffer UV exposure as it would be "in the shade" and yet that is where the "bikini" effect has happened?

[mc172]

Look around your room/lab/whatever during the day. There is light underneath your instruments, it's just not as much as the front. Shade is not absence of light - think of it as a bit less light.

How would the smoke get under there unless the guy was blowing it deliberately under there, which is extremely unlikely?

[Specmaster]

Very true but isn't that a bit like saying that I can get a nice tan even indoors? The yellowing is same degree under the meter as it is on top and I have meters that many years older but they have not yellowed nor show even the slightest hint of a bikini effect where the handle is either.

[3roomlab]

isnt peroxide the normal go to for whitening of plastics?

[xrunner]

isnt peroxide the normal go to for whitening of plastics?

Yep. What I use in shown in the attachment. Paint it over the plastic and cover with saran wrap so it doesn't dry out in the sun. After a few hours in bright sunlight you will be amazed. Done it many times with no ill effects and works like a charm. 

[usagi]

peroxide treatment is only temporary. the yellowing returns, even for parts stored in total darkness in temperature controlled humidity controlled storage.

[james_s]

I use some stuff called Oil Eater, it's fantastic for this sort of thing.

It seems they make several products, can you be more specific?

http://oileater.com/

I didn't realize there was more than one. I use the regular white bottle cleaner degreaser. It's similar to Simple Green but I find it to be more effective at removing grease and oil. Wear gloves though, it's supposedly non toxic but it sucks the moisture right out of your skin.