QuantityWare - ASTM D1250-04_ASTM_D1250-80 comparison

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kg/m³. This is a requirement of many European and Asian countries where, e.g. the legacy APIc-codes (ASTM D1250-80) have been changed to round density values to 0,1 kg/m³ and thetemperature rounding has been left unchanged at 0,05 °C.Note that German Industry Standard DIN 51757-94 on the other side defines the rounding ofobserved (input) data as follows:If you use the odd tables 53A, B, and D, round the observed temperature values in °Cto 0,05 °C, and round the observed density values in kg/m³ to 0,1 kg/m³If you use the even tables 54A, B, and D, round the observed temperature values in °Cto 0,1 °C, and round the observed density values in kg/m³ to 0,1 kg/m³Within QuantityWare BCP implementations, “German rounding” of temperature values isdefined at 0,05 °C; customers requiring the even table rounding according to DIN 51757-94have to ensure via system configuration that temperature values are passed rounded to 0,1 °Caccuracy to the calculation.In addition, DIN 51757-94 requires that volume correction factors are always applied rounded tofour decimal places, while standards in other countries may either adhere to the ASTM D1250-80 distinction between five decimal volume correction factors for values less than 1 and fourdecimals for values greater than 1, or follow the approach chosen by DIN 51757-94.Comparison of ASTM D1250-04 and ASTM D1250-80 16/49
4.2. Comparison methodology detailsBased on this list of complexities, when attempting to perform comparison calculations betweenASTM D1250-80 and ASTM D1250-04, a meaningful comparison grid must be defined withfinite incrementing steps for density and temperature values. In order to define this grid, wecompiled table 1 to support our choice.Input and result rounding ASTM D1250-80 / 04InputOutput1980 2004 1980 2004Table Density Temp. Density Temp. Density5A,B,D 0,1 0,1 none none 0,1 none23A,B,D 0,0005 0,1 none none 0,0001 none53A,B,D 0,5 0,05 none none 0,1 none59A,B,D 0,5 0,05 none none 0,1 none53A,B,D (GR) 0,1 0,05 not relevant not relevant 0,1 not relevant59A,B,D (GR) 0,1 0,05 not relevant not relevant 0,1 not relevantVCF6A,B,D 0,1 0,1 none none 0,0001 or 0,00001 0,0000124A,B,D 0,0005 0,1 none none 0,0001 or 0,00001 0,0000154A,B,D 0,5 0,05 none none 0,0001 or 0,00001 0,0000160A,B,D 0,5 0,05 none none 0,0001 or 0,00001 0,0000154A,B,D (GR) 0,1 0,05 not relevant not relevant 0,0001 or 0,00001 0,0000160A,B,D (GR) 0,1 0,05 not relevant not relevant 0,0001 or 0,00001 0,000016C 0,0000005 0,1 none none 0,0001 or 0,00001 0,0000124C 0,0000005 0,1 none none 0,0001 or 0,00001 0,0000154C 0,000001 0,05 none none 0,0001 or 0,00001 0,0000160C 0,000001 0,05 none none 0,0001 or 0,00001 0,00001Table 1: Shown is the rounding increment in respective units of measure (°API for tables 5 & 6, relativedensity for tables 23 & 24, absolute density in kg/m³ for tables 53, 54, 59 & 60, °F for tables 5,6,23 & 24,°C for tables 53, 54, 59 & 60, 1/ °C for tables 54C and 60C, 1/ °F for tables 6C and 24C) which isdefined/applied in the respective implementation guidelines. The “German rounding rule” implementationsare listed as well.Comparison of ASTM D1250-04 and ASTM D1250-80 17/49
Page 1 and 2: QuantityWareWorking PaperComparison
Page 4: 5.8. Result analysis - tables 6 A,
Page 9 and 10: 2. History of ASTM D1250This chapte
Page 11 and 12: 3. Changes between ASTM D1250-80 an
Page 14 and 15: factor in relation to the base temp
Page 18 and 19: We then defined the following grid
Page 20 and 21: For this grid we chose a symmetrica
Page 22 and 23: The resulting values were also roun
Page 24 and 25: For each category, the following co
Page 26 and 27: Note that the detailed data given i
Page 28 and 29: ASTM D1250-80 Table 23 :% differenc
Page 30 and 31: If your measurements for absolute d
Page 32 and 33: If your measurements for absolute d
Page 34 and 35: ASTM D1250-80 Table 6 :% difference
Page 42 and 43: 6. Comparison of ASTM D1250-52 data
Page 44 and 45: 8. ConclusionWe compared the differ
Page 46 and 47: Annex A: Detailed results - complet
Page 48 and 49: Annex C: Business impact decision m

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