scholarly journals Pemeliharaan Dan Penyimpanan Peralatan Laboratorium Kimia

2009 ◽  
Vol 1 (1) ◽  
pp. 26
Author(s):  
Jufriyah Jufriyah ◽  
Isna Mar'ah ◽  
Kelik Isharyudono

Improper maintenance and storage of laboratory equipment, will shorten the life span. Damage to the tool will have a direct impact on the costs that must be incurred to replace damaged equipment components or even procurement of new equipment. The purpose of this paper is to provide an understanding of how to maintain and store chemical laboratory equipment. And can identify damage to chemical laboratory equipment. Broadly speaking, the tool maintenance method is divided into two parts: planned maintenance and unplanned maintenance. For storage of tools using the classification method based on the tool group, frequency of use and the nature of the tool. Maintenance and storage of chemical laboratory equipment is an activity process in order to anticipate damage as early as possible so that it can increase the efficiency of the working life of the equipment used. So that the chemical laboratory equipment can function optimally and always in a state of ready use, it is necessary to have knowledge about how to maintain and store laboratory equipment and how to identify equipment damage as early as possible. Maintenance and storage of chemical laboratory equipment properly can prevent damage to chemical laboratory equipment that will extend the life of the equipment, and ensure the comfort and safety of the user.

METANA ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 58
Author(s):  
Raharjo Raharjo ◽  
Sri Harjanto

Fasilitas alat dan bahan di lingkungan laboratorium kimia bagi mahasiswa yang sedang menyelesaikan tugas penelitian merupakan suatu hal yang tidak bisa terpisahkan, dan sangat diperlukan keberadaanya. Maka  sistem kelola, cara penanganan dengan  baik dan benar terutama  yang berhubungan dengan bahan kimia ataupun alat gelas dan instrumen mulai dari proses pengadaan, penerimaan , pengemasan, penyimpanan sampai penyaluran, penggunaan sesuai dengan tata kelola yang baik dan benar, juga ditunjang pelayanan yang memadai akan sangat membantu dalam rangka penyelesaian kegiatan penelitian mahasiswa Tugas Akhir di laboratorium kimia. Handling of good equipments and materials to order to supply activities studensts at the chemical laboratory  Equipment and materials facilities in chemical laboratory environment for students who are completing research tasks is an inseparable, and indispensable condition. Therefore, good and proper handling system, especially those related to chemicals or glassware and instruments starting from the procurement, receiving, packaging, storage until distribution, use in accordance with good and correct governance, also supported by adequate services will very helpful in the completion of research activities of Final Final students in the chemistry laboratory.


JAMA ◽  
1968 ◽  
Vol 206 (6) ◽  
pp. 1308b-1308
Author(s):  
F. P. Li
Keyword(s):  

1983 ◽  
Vol 28 (7) ◽  
pp. 552-554 ◽  
Author(s):  
H. Grauer ◽  
N.M. Campbell

The attitude of physicians toward retirement was studied using a questionnaire sent to physicians aged 65 and older. The information obtained was supplemented by organizing a study group of interested doctors. Of the 58 respondents whose average age was 71, 54 were still in practice and 65% had no plans for retirement. There was a strong urge to maintain the status quo. The group discussion centered around the loss of control over one's declining practice and the fear of diminishing competence with advancing age. The dedicated lifetime pursuit of a medical practice makes retirement extremely difficult for today's older physician. This study supports surveys on the working life span, longevity and mortality of North American physicians.


2001 ◽  
Vol 9 (1) ◽  
pp. 1-13 ◽  
Author(s):  
John P. Dear ◽  
Nick S. Mason

For many polyethylene products, their working life-span depends on retention by the material of its antioxidant. In dry air, when the working and environmental stresses remain within defined limits, the life-span of the material can be many decades. Immersed in water, for example, the diffusion and loss of antioxidant from the material's surface can increase. Also, some types of aggressive agents, if in the water, can enter the material's surface and migrate into the material to increase the depletion of the antioxidant population. Researched in this study, is the depletion of antioxidants in polyethylene when exposed to water containing different chlorine concentrations. This research relates to the world-wide use of polyethylene pipes in water treatment and distribution networks.


1949 ◽  
Vol 4 (4) ◽  
pp. 285-289 ◽  
Author(s):  
E. Clague
Keyword(s):  

2017 ◽  
Vol 5 (19) ◽  
pp. 9339-9349 ◽  
Author(s):  
Zhenggang Zhang ◽  
Zhe Peng ◽  
Jieyun Zheng ◽  
Susu Wang ◽  
Zixuan Liu ◽  
...  

We utilize a protective porous structure based on the pyrolyzed PAN binder to stabilize the electrolyte/lithium interface to prolong its working life.


Metabolism ◽  
2021 ◽  
Vol 115 ◽  
pp. 154458
Author(s):  
Nidhi Chahal ◽  
Anjali Geethadevi ◽  
Surleen Kaur ◽  
Ruchi Lakra ◽  
Anjali Nagendra ◽  
...  

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