Nabilia:
Please api mpms 11.5 Part 1,2 and 3 al mail
Thank you
API MPMS 11.5.1, Physical Properties Data 3:2009 Section 5—Density:Weight:Volume Intraconversion Part 1—Conversions of API Gravity at 60 °F Adjunct to; ASTM D1250-08 and IP 200:08.pdf
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API MPMS 11.5.2, Physical Properties Data 3:2009 Section 5—Density:Weight:Volume Intraconversion Part 2—Conversions for Relative Density (60:60 °F) Adjunct to; ASTM D1250-08 and IP 200:08.pdf
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API MPMS 11.5.3, Physical Properties Data 3:2009 Section 5—Density:Weight:Volume Intraconversion Part 3—Conversions for Absolute Density at 15 °C Adjunct to; ASTM D1250-08 and IP 200:08.pdf
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Hey all
If you are looking for VCF check below link
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Brgds
Masboy
Masboy, I downloaded the spreadsheet you suggested in search of the "k" factors for the various product types. These "k" factors are used to calculate the VCF.
VCF= exp(-α*∆T*(1.0+0.8*α*∆T)) where ∆T=T(actual) - T(base) and α=k0/ρ^2 + k1/ρ + k2
The spreadsheet formulas for Crudes (6a/54a) and Refined Products (6b) all follow the above pattern; however, the formula for 54b calculates ∆T as:
[T(actual) + 40]*1.8 - 99
Does anyone know if this is correct? If not, anyone using the spreadsheet for 54b VCF calculations needs to fix the "Calc 6-54" worksheet.
Dear All
Will anybody reply that whether astm tables are for density conversions measured by glass hydrometer only, or density values measured by other techniques eg. oscillating tubes may be converted by these tables.
As I understand glass hydrometer (let suppose) is calibrated on 60 F and measurement temp is 77 F so we a correction factor to compensate. Second is the correction factor for volume expansion/contraction of crude oil with temperature which is to be compensated when calculating density at different temperatures.
Do ASTM tables incorporate compensation by both of above factors?
Regards
Hi
Could you anybody send me ASTM D 323 ?
Hi
Could anybody send me ASTM D 323 ?
Suzi
Your email address for ASTM d323.
I have studied and found that ASTM tables incorporate corrections from both factors. If you measure density / Specific Gravity / API Gravity by other than hydrometer then you cannot apply these factors, instead consult volume X which deals with correction factors separately for both factors. Also it suggests sub routines to develop computer based programmes.
Is there any one to second my understandings......
D 323-99 Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)
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Does anyone have the vba software for excel for calculating the volume correction factors inaccordasnce to ASTM D1250 Petroleum Measurement Tables
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