Page 1. Page 2. Page 3. Page 4. Page 5. Page 6. This test method is under the jurisdiction of ASTM Committee D02 on . D − 12b MPMS Chapter kg/L or g/mL) are still in use Discussion—Common. Buy ASTM Db() Standard Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by.
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ASTM D 1298-12b API
This procedure can also be used for viscous liquids by allowing sufficient time for the hydrometer to reach temperature equilibrium, and for opaque liquids by employing a suitable meniscus correction. ASTM D bnm. The calculations required in Section 10 shall be applied to the initial hydrometer reading with observations and results reported as required by Section 11 prior to use in a subsequent calculation procedure ticket calculation, meter factor calculation, or base prover volume determination.
Readings are measured on a hydrometer at either the reference temperature or at another convenient temperature, and readings are corrected for the meniscus effect, the thermal glass expansion effect, alternate calibration temperature effects and to the reference temperature by means of the Petroleum Measurement Tables; values obtained at other than the reference temperature being hydrometer readings and not density measurements. Your consent to our cookies if you continue to use this website.
This correction can be determined by one of two methods: Summa Summary ry of Test Method 4. This reading readin g requi requires res a meniscu meniscuss corre correction.
ASTM D b API – PDF Free Download
Subscription pricing is determined by: This standard is not included in any packages. Convertt the densit densities ies calculated calculated in Ste Step p 3 tha thatt Step 4a. If thi thiss temperature differs from the previous reading 9. Since the same coefficients were used in compiling each set of tables, corrections made over the same temperature temper ature interv interval al minim minimize ize errors arising from possible dif differenc ferences es between betw f1298 the coe coefffici icient ent of the mat materi erial al und under er tes testt and the sta standa ndard rd coefficients.
Either comparison with a referenced temperature measurement system traceable to an international standard, or a d2198 of ice point, is suitable.
It is up to the user to determine whether this test method provides results of sufficient accuracy for the intended purpose. This procedure is most suitable for determining the density, relative density specific gravityor API gravity of low viscosity transparent liquids.
Current Curre nt editio edition n appro approved ved June 1, We share information about your activities on the site with our partners and Google partners: Referenc Referenced ed Documents 2. Crude Oil Observed Temperature: The approp app ropria riate te hyd hydrom rometer eter and the thermo rmomete meter, r, als also o at a sim similar ilar temperature, are lowered into the test portion and allowed to settle. If a stable temperature cannot be obtained, place the hydrometer cylinder in a constant temperature bath and repeat the procedure from 9.
Mixing of volatile crude petroleum or petroleum products containing water or sediments, or both bo th, or th thee he heat atin ing g of wa waxy xy vo volat latile ile cr crud udee pe petr trol oleu eum m or petroleum petro c1298 products may result in the loss of light components.
These values are 4 5. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The valu values es giv given en in par parent enthes heses es are pro provid vided ed for information s1298.
Example Crude Oil 2 5. Your Alert Profile lists the documents that will be monitored. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of r1298 limitations prior to use.
This procedure can also be used use d for viscous viscous liqu liquids ids by allo allowin wing g suf suffficie icient nt time for the hydrometer to reach temperature equilibrium, and for opaque liquids by employing a suitable meniscus correction.
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Norma ASTM Db()
Calc Calculati ulation on Density, relative density, or API gravity is a factor governing the quality and pricing of crude petroleum. The calculations required in Section 10 shall be applied to the initial hydrometer reading with observations and results reported adtm required by Section 11 prior to use in a subsequent calculation procedure ticket calculation, meter factor calculation, or base prover volume determination.
Ensure that the remainder remainder of the hydromet hydrometer er stem stem, whi which ch is abo above ve the liquid level, is not wetted as liquid on the stem affects the reading obtained.