of the coating had been given in the above example, the calculation would have been: Spread the love Specific Gravity to Density Calculator Specific Gravity to Density Calculator Specific Gravity: Calculate Specific Gravity (SG) Density Relative to Water (Density of Reference Substance) 0.1 100 kg/m³ 0.5 500 kg/m³ 1.0 (Water) 1000 kg/m³ 1.5 1500 kg/m³ 2.0 2000 kg/m³ 2.5 2500 kg/m³ 3. Find more Chemistry widgets in WolframAlpha. In food processing systems the common heat-transfer fluid is based on. The most common antifreeze fluid - ethylene glycol - must not be used where there is a chance of leakage to potable water or food processing systems. In the calculation given above the density of the coating is 9.4 lbs/gal, therefore its S.G. Send feedback Visit WolframAlpha Get the free 'Water Density Calculator' widget for your website, blog, Wordpress, Blogger, or iGoogle. Online calculator, figures and tables showing density and specific weight of methane, CH, at temperatures ranging from -160 to 725 ☌ (-260 to 1300 ☏) at atmospheric and higher pressure - Imperial and SI Units. For many heat-transfer applications it is necessary to use a heat-transfer fluid with lower freezing point than water. (Some references give the density of water as 8.34 lbs/gal). Online calculator, figures and tables showing density and specific weight of nitrogen, N, at temperatures ranging from -175 to 1325 ☌ (-280 to 2400 ☏) at atmospheric and higher pressure - Imperial and SI Units. Specific gravity is the ratio of the density of a compound to the density of water, which is 8.33 lbs/gal. = 1.5 you need to multiply by 8.33 lbs/gal. Heat pump technology makes it 3X MORE EFFICIENT than a new. If the density is not given in lbs/gal but as specific gravity (S.G), such as S.G. The Rheem ProTerra Electric hybrid is the smartest, most efficient water heater on the market. Density is sometimes given as WPG (weight per gallon).įor instance, if the % Wt. volatiles) by the density of the coating. The output density is given as kg/m, lb/ft, lb/gal (US liq) and sl/ft. 1.5Ī: To calculate the VOC of a coating from a Material Safety Data Sheet (MSDS) one needs to multiply the percent weight ( organic) solvent (% Wt. The calculator below can be used to calculate the ammonia gas density and specific weight at given temperatures and atmospheric pressure. 50 gallons of water can be converted to pounds as. Water - Density and Specific Weight Example - Converting Gallons of Water to Pounds. UK gallons The equation is based on water with temperature 68 o F (20 o C) and specific weight 8.33 lb/US gal. We have found the easiest way is to calculate the VOC content with water so you can more easily calculate emissions (lb VOC/gal x gal = lb VOC) and then remove the water as above to verify compliance.Ask the Expert Question-and-Answer ArchiveĬalculating VOC from an MSDS That Provides Specific Gravity Q: Please provide me a tip to calculate a VOC pd/gal if the MSDS only has a Specific Gravity. w weight of water (lb) q volume of water (US gallons) UK vs. The reason that EPA makes this distinction is to prevent coating suppliers and users from “diluting” their coatings with water in order to achieve compliance with VOC content limits. If you took out the water, you would now have 1 lb VOC in 0.6 gal of coating or 1.67 lb VOC/gal minus water. For example, suppose you have a coating that contains 1 lb VOC/gal and 40% water by volume. One cubic foot holds 7.48 gallons of water, and one gallon of water weighs 8.33 pounds. The term “pounds of VOC minus water” means how much volatile organic compound (VOC) does the coating contain if you took the water out of it. T.L., hopefully these explanations will part the cloak of VOC mystery. Can you shed some light on this matter? Thanks for any assistance. The underlying chemistry of the various calculations, such as “VOC minus water” and “weighted average,” remains a mystery to me. These are being done in a timely, thorough, but wholly by rote fashion using spreadsheets developed by my predecessors. Part of our job is to file monthly coatings VOC reports with our state environmental authority. While our suppliers provide VOC data, we still have to derive the VOC content of the coatings as applied since we may add solvent and/or water to the coatings. We use both solvent and water-reducible coatings. I enjoy your specific, accurate responses to questions, even when the subject is out of our “field of view.” I’m the part-time environmental/safety manager for a small custom coater.
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