Sixpence? That's a tanner ter you, lad! Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator]
>-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >Behalf Of James Frysinger >Sent: Sunday, August 08, 2004 17:55 >To: U.S. Metric Association >Cc: U.S. Metric Association >Subject: [USMA:30678] Re: pints of blood > > >Euric, > >I thought we covered that a year or two ago. Blood donations to >the American >Red Cross are in "units". A "unit" is defined based on a range of masses; >that is, there is a minimum and a maximum allowable mass for a unit. > >The "pint" went away officially some thirty years ago but the name >has hung on >so a "gallon" is really 8 "units", not 8 "pints" despite what the >card might >say, if you can fathom that. Well, there's my sixpence worth of comment. > >Jim > > >On Saturday 2004 August 07 13:15, Euric wrote: >> If I donate a pint, how much blood am I really donating? >> >> The collection bags hold 450 mL of product. The standard US pint is 473 >> mL. When you say pint, do you mean 473 mL or the 450 mL the bag holds. >> What means do you use to measure a pint? >> >> When you say gallon, do you mean 3.785 L based on a 473 mL pint, >or do you >> mean 3.6 L, based on the 450 mL capacity of the bag? >> >> Below you mention a donor who has given 24 gallons. How much did he >> actually give? Based on the standard definition of the gallon, >that would >> be 91 L. Based on the amount of blood held in the bags, that would be >> about 86.5 L. That is a 4.5 L difference in the two meanings. >> >> I'm just curious to know how you determine the amount of blood in a pint >> and gallon. >> >> >> >> >> American Red Cross Recognizes 24 Gallon Blood Donor >> >> >> Philadelphia, PA, April 29th, 2004 - >> Montgomery County's Hal Kellogg Has Been Donating Blood >for 70 Years >> >> >> >> Proving that there is no age limit to donate blood, Howard "Hal" >> Kellogg recently gave his 24 gallon blood donation for the American Red >> Cross at the age of 88. >> >> >> >> Thanks, >> >> Euric > >-- >James R. Frysinger >Lifetime Certified Advanced Metrication Specialist >Senior Member, IEEE > >http://www.cofc.edu/~frysingj >[EMAIL PROTECTED] >[EMAIL PROTECTED] > >Office: > Physics Lab Manager, Lecturer > Dept. of Physics and Astronomy > University/College of Charleston > 66 George Street > Charleston, SC 29424 > 843.953.7644 (phone) > 843.953.4824 (FAX) > >Home: > 10 Captiva Row > Charleston, SC 29407 > 843.225.0805 >
