OnlineConversion Forums Welcome to OnlineConversion.com Forums

Go Back   OnlineConversion Forums > Main Forums > Convert and Calculate

Convert and Calculate Post any conversion related questions and discussions here. If you're having trouble converting something, this is where you should post.
* Guest Posting is allowed.

Reply
 
Thread Tools Display Modes
  #1  
Old 12-15-2009, 01:46 PM
linesite linesite is offline
Junior Member
 
Join Date: Dec 2009
Posts: 2
Rep Power: 0
linesite is on a distinguished road
Default Calculate weight using specific gravity

I wanted to check my work with the forum and see if my calculations are correct. I have a single 55 gallon capacity drum containing a liquid. The only information I possess about total weight of the commodity is specific gravity (1.25). Based on this information, I multiplied specific gravity of 1.25, total capacity of container (55 gallons), the total weight of a gallon of water 8.345404 together for a total product of 573.746525 pounds. Is this correct? The only knowledge I have about specific gravity is from recent quick study of the internet.

Any help /direction is greatly appreciated.

Keith
dkbell@gmail.com
Reply With Quote
  #2  
Old 12-15-2009, 02:09 PM
JohnS JohnS is offline
Moderator
Long Time Member The Golden Calculator Award Over 5000 Posts
 
Join Date: Dec 2007
Location: SE Michigan, USA
Posts: 9,536
Rep Power: 19
JohnS will become famous soon enough
Default Re: Calculate weight using specific gravity

Quote:
Originally Posted by linesite View Post
I wanted to check my work with the forum and see if my calculations are correct. I have a single 55 gallon capacity drum containing a liquid. The only information I possess about total weight of the commodity is specific gravity (1.25). Based on this information, I multiplied specific gravity of 1.25, total capacity of container (55 gallons), the total weight of a gallon of water 8.345404 together for a total product of 573.746525 pounds. Is this correct? The only knowledge I have about specific gravity is from recent quick study of the internet.

Any help /direction is greatly appreciated.

Keith
dkbell@gmail.com
This is essentially correct (the method is spot on). The density of water (and any liquid) varies with temperature because the volume changes. You really need to know the density of water at the temperature at which the 55 gallons was measured. That might have been 15 C if a petroleum product, or 20 C for many other products. The density might be lower, like 8.33 lb/gallon, and overall weight lower like 572.7 lb. The 55 gallons and the SG are probably not measured accurately enough to support a nine-digit answer (we call this decimal dust)

It is almost certainly in the range 572-574 lb, however, and we are only splitting hairs. Weigh it if you need a more accurate answer.
Reply With Quote
  #3  
Old 12-15-2009, 02:43 PM
linesite linesite is offline
Junior Member
 
Join Date: Dec 2009
Posts: 2
Rep Power: 0
linesite is on a distinguished road
Default Re: Calculate weight using specific gravity

Thanks John I wanted to make sure I read information about specific gravity correctly.

Keith
dkbell@gmail.com
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -8. The time now is 12:15 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 1997-2005, 2007, OnlineConversion.com