Dwelling Fireproof Risk-free Rankings – How to Figure out If Your Secure is Fireproof

Want to Blow Up a Protected?

With these assessments for your home fireproof risk-free, it could explode. This posting tells you how to examination a fireproof home harmless to ascertain if it meets the expectations for fireplace resistant ratings established by The Underwriters Laboratories. Remember to notice that I use the term fireproof interchangeably with fire resistant, technically they are not interchangeable. I also propose that you do not really test this in your own household. It is much too pricey and harmful.

Product Desired

1. You will need to have a least of two similar household fireproof safes. You will want a 3rd fireproof home risk-free if you want to do the explosion check by by itself.

2. Select some paperwork that you can use for a exam. Make confident it is something that you can spare but do not use blank paper if not you will not likely know if is readable or not. I have contemplated employing my BS degree in electrical engineering. I haven’t made use of it for several years. If you are tests a media harmless, then you may possibly want some CDs that you bought for Xmas and are unable to stand. Try a flash drive and memory stick also.

3. You may need to have a furnace large plenty of to heat a person secure at a time. If you’ve got viewed MacGyver or the A Group, I am guaranteed you can improvise. In any other case test out a regional pottery kiln.

4. Get some protective equipment. Oven mitts will not do well opening a secure that has been heated to 2,000 degrees F.

5. By some means, you will need to obtain some thermometers and recording units that will permit you know the inside temperature in the fireproof safe and sound. I do not think an Oregon Scientific weather station will work unless you are testing for the UL 125 ranking. It will also need to measure humidity.

6. You will also have to have to measure the exterior temperature of the secure. Good luck obtaining a affordable thermometer that goes to 2,000 degrees.

7. Oh, I nearly forgot. You will in all probability will need a little crane to hoist your property fireproof safe 30 feet in the air though it is still warm. A speedy release will also be required for the fall test.

8. At the bottom of the fall test, you will will need a pile of bricks on a cement slab.


Assuming you have been in a position to assemble all the product earlier mentioned, it may well be good to uncover out what the various UL scores indicate and the standards that will figure out a successful test. Each of the scores can be employed for a fireproof risk-free but it is meaningless unless of course you specify how extensive the harmless will meet the common.

UL 350 – The secure must keep the inside temperature under 350 degrees Fahrenheit. That is down below the typical temperature for most paper products and solutions to burn off, char or become ineffective.

UL 150 is the score for tapes, cartridges, microfiche, and microfilm. In addition to maintaining the inside at or underneath 150 levels, the humidity must be down below 85%.

UL 125 is the standard for diskettes. In this circumstance, the temperature are not able to exceed 125°F and 80% humidity. I have a experience that this normal is a little bit out of day mainly because most people today will not keep diskettes any more.

Warmth Take a look at

The initially exam is to see if your fireproof property risk-free will protect the contents for the specified duration of time. You need to have to start at normal space temperature and humidity. Load your safe with your examination product and haul it over to your furnace.

Heat your furnace to the following temperatures (all Fahrenheit) for the take a look at you want to operate then set the secure in the furnace. Be mindful, when Shadrach, Meshach and Abednego ended up tossed into a super heated furnace, the men assigned to the job have been killed from the heat.

o 1,550 for a ½ hour rated safe and sound
o 1,700 for a 1 hour rated safe
o 1,850 for a 2 hour rated harmless
o 1,920 for a 3 hour rated safe
o 2,000 for a 4 hour rated harmless

Depart your dwelling fireproof harmless in the furnace for ½ to 4 hours. Below comes the kicker. Don’t eliminate the safe just after the allotted time, merely switch off the heat and enable it awesome down inside of the furnace. If you have a actually good furnace, like the kinds that the men at UL have, that would get up to 68 several hours.

You may have to have to report the interior temperature for the duration of the warmth up and neat down period. If it goes higher than the score, your dwelling fireproof harmless flunked the take a look at. When it will get awesome ample to open up, you will will need to examine your examination contents to make absolutely sure they are even now superior.

Influence Take a look at

I assume the heat exam was somewhat monotonous. The effects take a look at is a lot far more enjoyment and will not take as very long. For this take a look at, you need your next dwelling fireproof protected. Get started the exact same as ahead of but the periods and temperatures in the furnace will be much less.

o 20 minutes at 1,460 levels for a ½ hour rated risk-free
o 30 minutes at 1,550 levels for a 1 hour rated protected
o 45 minutes at 1,640 for a 2 hour rated risk-free
o 60 minutes at 1,700 for a 3 and 4 hour rated safes

This part seems like a Television set sport show. You now have 2 minutes to get the secure out of the furnace, lift it 30 feet in the air and drop it onto your pile of bricks. If you can see the insides through any cracks or the door, your fireproof protected flunked the 2nd exam. On the other hand, if it even now seems to be Ok you usually are not completed nevertheless.

Flip your secure upside down and reheat it yet again. This time you can clear away it from the furnace and let it interesting. Open the secure and look at the contents. If anything is Alright, such as no injury owing to moisture, you are virtually accomplished.

Explosion Exam

If you are a enthusiast of Mythbusters on Tv set, then this has the likely of currently being the most exciting. If you only purchased two safes, then you will want to do this just before you do the drop take a look at.

Start out with an vacant fireproof property harmless. Warmth it to 2,000 levels then open it and things the exam documents, CDs or other content in truly fast. Slam the door shut and retain the exterior at 2,000 degrees for one more 30 minutes. If your risk-free has not exploded you are pretty much carried out. Once it has cooled adequate to make guaranteed you can handle it, open your property fireproof safe and make sure your files are nevertheless Alright.

Congratulations, you have just proved that your dwelling fireproof harmless is in truth fire resistant.

Mythbusters Exam

None of your safes are any good any longer so this is for individuals who like to see issues blow up. Get a adhere of dynamite and… No, I am not heading there. Somebody might accuse me of endangering individuals.


It is a whole lot cheaper and safer to just appear inside of your safe and sound and see if it has a UL sticker.