Do petrol pumps measure weight or volume ?
Friday, 16 April 2021 06:38 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
bens_dadHow does a petrol pump measure the the petrol it dispenses ?
This photo
shows a sticker added to a petrol pump display so that it reads "PRICE PER LITRE @15°C".
Assuming the sticker is authoritative and ignoring the widespread misuse of the "at each" symbol,
the qualification suggests that at other temperatures the price per litre may be different.
That in turn implies that the dispensed petrol is not measured by volume.
A quick online search suggests that the meters in petrol pumps do measure volume.
Thus I'm guessing the sticker is wrong. Does anyone know better ?
[ If you can't see the photo it may because I have used the "new" .avif file format.
I would be interested to hear about browsers that do not show it. ]
This photo
shows a sticker added to a petrol pump display so that it reads "PRICE PER LITRE @15°C".
Assuming the sticker is authoritative and ignoring the widespread misuse of the "at each" symbol,
the qualification suggests that at other temperatures the price per litre may be different.
That in turn implies that the dispensed petrol is not measured by volume.
A quick online search suggests that the meters in petrol pumps do measure volume.
Thus I'm guessing the sticker is wrong. Does anyone know better ?
[ If you can't see the photo it may because I have used the "new" .avif file format.
I would be interested to hear about browsers that do not show it. ]
