Halloween Blood can be found @ Party City
Stage blood @ Stage Makeup
Movie Blood @ Thomasfx
*Note: These were the fake blood volumes quoted 12 years ago when I was first researching fake blood data. I have noticed the numbers on various chat platforms have inflated the volumes in the last 12 years.
*Note: Rounding off the initial volume eg. 0.06 pint (0.028L) then up-scaling that volume to 36,000 pints (17,000L) introduces a significant error in the final calculations.
Mathspig Blog 