Show y FT wh aw W Y d M ue ue kap rn ew 2 aft th C t st a 0 CA of vidad i to every vahide oze meer ever since gasoline has been used on a large scale in pleasure cars and comm commercial acial motor vehicles several popular tests have been used for gauging its its quality the most common of thern them is the gravity Yra vity test made by means of an instrument called a hydrometer this gives ives the specific gravity of the gas gasoline cline in degrees baume sn an accurate measurement of its vei ghi L thousands of gasoline users have been the 1 0 he rel report rort mentioned above the latest led to belic believe ve that the gravity test is a volume of f which is eff effective december 51 reliable indication of gasoline quai quality ty 29 1920 bulletin no ito 5 constitutes so believing it is is anly natural thein their the basis baris of all tests ol 01 of petroleum products to suppose that high gravity means to be bought for any and ail departments high quality and similarly that low partia part ments ints of the U S government gravity indicates low quality there are however many facts that show how the opinion tz of a erron erroneous this idea really is authority on oil alc tlc S subject abject whai happened defring the war most v writers on the subjects of pet petroleum production gasoline asoline refina refining and at t the time 0 of our enar entrance an cc int into 0 o t the e testing point gut cut the fallacy I 1 of using war the various dapo departments t meats of th the c the hydrometer to determine the quality government each I 1 iad had different specify or purity of liquids for the petrol petroleum eurn products that it used to clin eliminate binate the obvious disadvantages disadvantaged in the Petrol petroleum cun i handbook by of this condition th the i president esi mr stephen 0 andros A B B A sc E Y appointed a committee composed hd the thee c is the following aci reference ference the familiar gra ity jar and hydrometer largely of technical n men r and scientists made to the gravity test in the chapter are all that is necessary to find the to ao draw up a single volume of specifications i if f on gasoline specifications J gravity of a liquid in this way the for P all 11 classes cs cf weight t of the liquid can be computed specific gravity is in itself of very brodu products acts used by all dep departments artmer of the with v ith great accuracy sut but as an indication little significance in determining the of gasoline quality gravity is government prope properties ties of gasoline gravity may unreliable serve vs ps rn an index of other properties the work of this committee was embodied bartic barly volatility only whan v hen in the report of corn committee cittee on apo dac is at hn hand nd regarding the sourer so irac and method of production of a standardization of petroleum specifications sample of gasoline cat ions published by the U S bureau of mines and in this report v aich which at best the gravity test is s amply a 2 contained complete nieth methods for t testing rule of thumb method supposed by all petroleum products including gasoline many to indicate something t r that gasoline illuminating oil lubricating oil and manufacturers and authorities are fuel oil the i h e gravity test tes t was ava s igno ignored red wall it does not indicate that is yn el ery case qua ity in other words this committee in numerous for this reason the continental oil conferences with prominent company does not sell conico gasoline motor vehicle manufacturers gasoline on a basis of gravity it is sold on a distributors and dealers came to the basis of its boiling points the real feal test same conclusion that gasoline ref re finers refinery of gasoline volatility power and mileage have held for years namely that on this basis it more than n meets gravity has no significance whatever the new navy specifications of the in ascertaining the quality of gasoline US gover government THE continental OIL CO A colorado corporation 0 N ac C Q 0 butte DENVER pueblo 10 cheyenne great falls 0 albuquerque 1 salt lake city ta or 0 0 lt this distilling outfit shown above is a common sight in most every well equipped chemical laboratory by means of it the boiling point or volatility range of liquids like gasoline is easily casily determined and constitutes Z a reliable indication of their power producing properties REG U S PAT OFF |