Air density measurement is an important parameter in standard mass calibration. The value is calculated from four measured components : temperature, relative humidity, mole fraction of carbon dioxide, and air pressure of environment where the calibration takes place. Empirical formula to calculate air density is recommended by Comité International des Poids et mesures (CIPM) in 1981/91, then updated in 2007. In this paper, there will be explanation about the differences between CIPM 1981/91 formula and CIPM 2007, their applications to air density calculation and the effects to uncertainty budget, and uncertainty contribution from air density variation to the standard mass calibration. The data is taken from the environment condition in Mass Laboratory of RCM LIPI. From the calculation, the average air density obtained from CIPM 1981/91 formula is 0.0001 kg/m3 smaller than that obtained from CIPM 2007. Air density variation in the mass laboratory is calculated as 0.00572 kg/m3 for CIPM 1981/91 formula and 0.00566 kg/m3 for CIPM 2007. Very small difference makes it insignificant to the uncertainty budget. Uncertainty contribution to standard mass calibration for both formulas are relatively the same, about 0.031 kg/m3, with the sensitivity coefficient 3.0 x 10-06 m3, making it the third largest contributor to the uncertainty budget of mass calibration.
| Published by | Lembaga Ilmu Pengetahuan Indonesia |
| Journal Name | Instrumentasi |
| Contact Phone | - |
| Contact Name | Prof. Jimmy Pusaka |
| Contact Email | j_pusaka@kim.lipi.go.id |
| Location | Kota adm. jakarta selatan, Dki jakarta INDONESIA |
| Website | ji| http://jurnalinstrumentasi.metrologi.lipi.go.id/index.php/ji| |
| ISSN | ISSN : 01259202, EISSN : 24601462, DOI : -, |
| Core Subject | Science, Engineering, |
| Meta Subject | Control & Systems Engineering, Electrical & Electronics Engineering, Physics, |
| Meta Desc | Instrumentasi is a scientific journal with high standard of papers that issued biannually by the Research Center for Metrology (Puslit KIM) – LIPI in cooperation with the Association of Instrumentation Society of Indonesia (HiMII). In its first years, Instrumentasi was categorized as a semi-popular magazine in the field of measuring techniques and measuring instruments which has been rapidly improved towards modern technology, and consequently, upgraded to a unique scientific journal in its class. Further, it is also accredited by the Indonesian Institute of Sciences (LIPI). The scientific areas covered by Instrumentasi are those backboned by scientific measurements and thus range from instrument engineering, metrology, testing, and control. All papers submitted are refereed by bona fide reviewers from leading research institutions as well as universities prior to publication to keep their quality meet the standard of the journal. The review is carried out mainly on the basis of originality, novelty, and contribution to scientific measurement. Authors need to complete the ethical clearance form for publication. |
| Penulis | Mushoddiqoh, Diina Qiyaman , Eka, Nur Tjahyo , Sugiharto, Toto |
| Publisher Article | LIPI Press, Anggota IKAPI |
| Subtitle Article | Instrumentasi Vol 41, No 2 (2017) |
| Scholar Google | http://scholar.google.com/scholar?q=%2Bintitle%3A&… |
| View Article | http://jurnalinstrumentasi.met… |
| DOI | https://doi.org/10.14203/instrument… |
| DOI Number | DOI: 10.14203/instrumentasi.v41i2.89 |
| Download Article [1] | http://jurnalinstrumentasi.metrologi.lip… |
| Download Article [2] | http://download.garuda.ristekdikti.go.id… |
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