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All Journal Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Bustani Mustafa
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Environmental Science

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PRECISION OF THE OCTANE NUMBER MEASUREMENT FOR GASOLINE BY PETROLEUM LABORATORIES IN ASEAN COUNTRIES (1999) Bustani Mustafa
Scientific Contributions Oil and Gas Vol. 23 No. 1 (2000): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.23.1.125

Abstract

A high precision of octane number measurement according to standard measurement and to standard requirement is a must in the refining industry. The ASEAN Council on Petroleum (ASCOPE) Correlation Programme is conducted to obtain the precision of octane number measurement data for gasoline the normally used methods of ASTM D 2699 and IP 239. This programme is participated by 19 petroleum laboratories in ASEAN Countries. The test results of the various participating laboratories are subjected to statistical analysis to determine their average value, variance, standard deviation, and to rejected the outlier values. The Grubb T-Test method was used for the statistical rejection of outliers. This method appears to be quite satisfactory for ASCOPE purpose. The implementation of the Grubb T-Test ensures the laboratory consistency and this in turn will give the buyers or sellers of the gasoline confidence in the quality of the gasoline This paper presents the results of 26 ASCOPE Laboratories Test Correlation Programme for Octane Number Measurement (1999).
1982 3rd Ascope Laboratories Test Correlation Programme On C.F.R. Engine Bustani Mustafa; E.Jasjfi
Scientific Contributions Oil and Gas Vol. 6 No. 1 (1983): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.6.1.153

Abstract

During the 2nd Workshup on the ASCOPE Laboratory Test Correlation Programme which was, held in Kuala Lumpur 17 - 18 August 1981, the following consensus was reached among participating laboratories : • The frequency of the correlation test programme should be increased to twice a year. • Testing should be carried out at the same day and time specified by the Programme coordinator. • Testing should be carried out according to the same procedure (bracketing Method). Member countries taking part in this correlation programme are Indonesia as coordinator with seven laboratories participating, Malaysia with one laboratory, Thailand and the Philip- pines with two laboratories each. The coordinator in this correlation programme is respon- sible in preparing the correlation samples and sending them by air to each participating laboratory. The first part of this programme (3rd Correlation Programme) was started by sending samples in January 1982 and the second part (4th Correlation Programme) was starting by sending samples in March 1982. It will appear in the next publication. After being tested by the participating laboratories, the test result are to be sent to the coordinator for the determination of the standard deviation and other statistical data. Based on these results, conclusions can be drawn about the deviation of laboratory test results and about outliers to be rejected. For better analysis of the results, for each of the samples for correlation it is also required to report physical and chemical tests such as specific gravity, R.V.P., distillation and lead (TEL) content in the receiving laboratories. This is necessary in order to take into account any possible changes in the sample properties which might have occured during transporta- tion and storage. Also to be observed are ambient and engine operating conditions during the correlation tests. The results of this analysis can then be used as a base for deviations the occurence of outliers and recommendation of remedial steps to be taken. d The method used for testing the samples is the bracketing method, while for rounding the value of the member found during the tests the ASA rules for rounding are used. SADIM The Grubb's rejection criteria with the use of "T" factors is used in evaluating the possible outliers. • Presented by the Indonesian Technical Committee to the Workshop on ASCOPE Laboratory held in Bangkok, Thailand, 9- 11 October 1982.
ASCOPE LABORATORY TEST CORRELATION PROGRAMME FOR OCTANE NUMBER MEASUREMENT IN 1992 Bustani Mustafa
Scientific Contributions Oil and Gas Vol. 17 No. 1 (1994): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.17.1.165

Abstract

The ASCOPE Correlation Programme for octane number measurement obtains precision octane number data for gasoline using the CFR engine and the normally used method: ASTM 2699 and IP 237. The test results of the various participating laboratories are subjected to statistical analysis to determine average values, variance, standard deviation and to reject the outliers values. The Grubbs T-test is used for the statistical rejection of outliers. This method is used by both NEG and ASCOPE in their laboratory test correlation programme. The Grubb T-test appears to be quite satisfactory for ASCOPE purposes. The implementation of the Grubbs T-test assures inter-laboratory consistency and this in turn will give the buyer or seller of the gasoline confidence in the quality of the fuel.
1982 4th ASCOPE LABORATORIES TEST CORRELATION PROGRAMME ON C.F.R. ENGINE Bustani Mustafa; E. Jasjfi
Scientific Contributions Oil and Gas Vol. 8 No. 1 (1985): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.8.1.171

Abstract

Member countries taking part in this correlation programme are Indonesia as coordinator with seven laboratories participating.
5th ANNUAL ASCOPE LABORATORY TEST CORRELATION PROGAMME ON CFR ENGINE (1983) Bustani Mustafa; E. Jasjfi
Scientific Contributions Oil and Gas Vol. 8 No. 2 (1985): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.8.2.200

Abstract

A high precision CFR Engine Laboratory operating according to standard requirement is a must in the oil industry, It is also of very high importance within work of research activities on the use of hydrocarbon fuels. In ASEAN we have the ASCOPE correlation program on CFR engine laboratory to obtain precinion data in the gusoline by CFR test research method. Member countries taking part in the 5 laboratory test correlation program for CFR engines are Indonesia as coordinator with six participating laboratories, Malaysia, Philippines, Singupore and Thailand with two laboratories each and USA with are laboratory. The 5th correlation program was started by sending sample by the program correlation in Jamuary, 1983 after being tested the participating laboratories, the test renilt were sent to the program coordinator who procured the result for the determination of standard deviation according to precision and statistics. Based on result, conclusion can be drawn about the deviation of laboratory test results.
Pengaruh Mutu Bahan Bakar Terhadap Rendemen Pembakaran dan Unjuk Kerja Mesin Diesel Bustani Mustafa
Lembaran Publikasi Minyak dan Gas Bumi Vol. 21 No. 3 (1987): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Dalam tulisan ini disajikan hal-hal yang menyangkut teori dan hasil penelitian mengenai pengaruh mutu bahan bakar solar terhadap rendemen pembakaran dan unjuk kerja (performance) mesin diesel. Dijelaskan juga bahwa mutu solar yang tinggi dapat mempersingkat waktu kelambatan penyalaan (ignition delay) sehingga dapat meningkatkan rendemen pembakaran dan unjuk kerja mesin.
Pelitian Pengaruh Etanol dan Aditif Antiknock (TEL) Terhadap Tingkat Oktan Bensin Produksi Cepu Bustani Mustafa
Lembaran Publikasi Minyak dan Gas Bumi Vol. 19 No. 2 (1985): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Besar kecil randemen termis tergantung pada perbandingan komresi suatu mesin, sedangkan randemen termis langsung mempengaruhi terhadap unjuk kerja, jumlah pemakian bahan bakar dan komposisi gas buang mesin. Akibat terjadinya peningkatan teknologi mesin yang bertujuan untuk meninggalkan efisiensi mesin, maka kualitas bahan bakar harus sesuai dengan desain tersebut. perunahan desain mesin antara lain menyangkut bentuk ruang bakar dan perbandingan kompresi, sehingga tingkat angka oktan bensin harus sesuai dengan berubahnya desain mesin.
PENELITIAN PENGARUH ADITIF ANTIKNOCK TEL DAN TML TERHADAP TINGKAT OKTAN DAN △ R 100 BENSIN CEPU Bustani Mustafa
Lembaran Publikasi Minyak dan Gas Bumi Vol. 19 No. 3 (1985): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Dalam rangka usaha meningkatkan mutu bebas (Ignitas Quality) bensin produksi Cepu, maka dilaksanakan penelitian dengan penambahan antiknock additive (TEL dan TML) pada bensin Cepu. Sebelum melakukan pengujian terlebih dahulu menyediakan contoh-contoh yang terdiri dari bensin murni produksi Cepu, TEL dan TML. Kemudian melaksanakan pengujian laboratorium yaitu angka oktan bensin murni Cepu ditambah dengan beberapa ml TEL dan TML dan kemudian mengamati terhadap tingkat Oktan yang dicapai akibat penambahan masing-masing antiknock additive tersebut.
Laporan Hasil Program Korelasi Mesin-mesin CFR Di Indonesia 1979-1980 Bustani Mustafa
Lembaran Publikasi Minyak dan Gas Bumi Vol. 14 No. 3 (1980): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Dalam rangka peningkatan jumlah pengilangan bahan bakar minyak di Indonesia untuk memenuhi kebutuhan dalam negeri sangatlah dibutuhkan laboratorium mesin CFR yang selalu standard dan persisi, karena ketelitian mesin CFR sangat mempengaruhi biaya produksi bahan bakar bensin. Disamping itu juga dibutuhkan untuk kegiatan penelitian kwalitas BBM serta adanya usaha-usaha untuk mengganti bensin dengan campuran Methanol atau Alkohol.
Co-Authors E. Jasjfi E.Jasjfi