Right I have just managed to get my hands on two Campingaz 907's. There is gas inside them but I'm not sure how much. How do I determine how much gas there is left in each bottle. Is it matter of just weighing the bottles? how much should a full 907weigh?
boil a kettle let it cool slightly and pour down the side of the bottle. Run your hand down the gas bottle and you will feel the gas level as the empty bit feels warm and where the gas is stays cold. Try it it works.
Weight empty is 3.7kg. (It is stamped on them: you will see Tare, or just "T", 3.7kg on the rim down at the bottom if you look very closely.) They hold 2.7kg of gas according to the label, making them, erm..., 6.4kg when full?
That's the theory, anyway, but don't rely on it. I had the same thought a while ago and weighed a few empty ones but found, surprisingly, that the tare weights varied a bit. It was more likely that my scales weren't that accurate, I suppose, or that you never know if they are quite empty.
My two 907s each have a different tare weights stamped on them: 3.7kg and 3.65kg. I wonder if they are individually weighed when made?
Oh yes, and one says "Tara", which I guess is either Spanish or Italian.
Anyway, with that information, I'm gonna make me a look up table with different tare weights so when I weigh them I'll know exactly how much gas I've got left.
Interesting, I had a look at both bottles and one is indeed stamped T 3.7kg the second which would appear to be older and more battered is stamped T3 55Kg although this has now started a heated discussion between my wife and I as to what it actually says. There is another stamping that more clearly says Tarra A6, followed by a blank and then Kg.
However using your principle I have weighed both bottles and they both weigh 5Kg. On that basis it may be safe to assume that they are both about half full.
Sounds good to me. 5kg = 50% is quite a useful rule of thumb to remember.
I bet that second one is showing 3[point]55kg. There's a gap there on mine, too. It was that that got me thinking they were indvidually weighed and stamped. T 3 goes on all of them, the decimal being added later.
The great thing is that you have two 907's so in theory you will never ever run out of gas, as you will always have a full bottle as backup, I found this year camping two weeks down in the Southern Ardeche, my gas usage was little, helped by the fact that I now use EHU, although I took a 907 and 904 as backup, next year I will just take my two 904's, even though the price of Campingaz is barmy compared to Calor/BP the compact size of the 907/904 is hard to beat.
Hubby's been asking himself this question for yonks! Yes you can shake them, but that doesn't give a truly accurate idea of whether a bottle can be eked out until you can find a replacement.
He'll be delighted there's a more accurate answer, thanks guys
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Topic: gas bottle weight full or empty
