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All Journal MEDIAN INVENTORY : Industrial Vocational E-Journal On Agroindustry
Rika Putri, Gustiarini
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Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Other

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VERIFICATION VERIFIKASI METODE ANALISIS ZAT AKTIF ZIRAM MENGGUNAKAN TITRASI IODIMETRI: VERIFICATION OF ZIRAM ACTIVE ANALYSIS METHOD USING IODIMETRY TITRATION renny_futeri, Renny Futeri; Armin, M.Ikhlas; Rika Putri, Gustiarini; Dewati Samah, Selfa Dewati Samah
Median : Jurnal Ilmu Ilmu Eksakta Vol. 15 No. 3 (2023): Jurnal Median
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33506/md.v15i3.2841

Abstract

is a fungicide in agriculture that is used for various types of fungi and plant diseases, mainly applied to plant foliage, and is also used as a soil or seed treatment. For this reason, it is necessary to confirm the composition or active substance in the fungicide sample so that it can work as intended. To ascertain the composition of the active substance, a test concentration analysis method is required, namely iodimetry titration. Before a method is used as a standard method, it is necessary to verify the method so that this method provides precise and thorough results. The verification process involves several parameters, namely precision, accuracy and linearity with the acceptance requirements for each parameter being % RSD < 2 % for precision, % recovery in the range of 98-102 % and determination > 0.9970 for linearity. From the tests that have been carried out, it was found that the precision parameters had a % RSD of 0.017320%, the accuracy parameters had a %recovery of 99.80% and the linearity parameters had a coefficient of determination (r2) of 0.027. The results of research on samples showed that Ziram 96% TC levels varied between 95-95.03%. This range is within the permitted content limits based on the CoA (Certificate of Analysis), namely 95-95.2%.
Evaluasi Risiko Muskuloskeletal dengan Metode REBA dan Nordic Body Map pada Stasiun Packing Industri Oleokimia Nadiyah, Khairun; Isfus Senjawati, Maria; Rika Putri, Gustiarini; Satria, Andika
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 6 No. 2 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v6i2.6

Abstract

Improper working postures are one of the main causes of Musculoskeletal Disorders (MSDs), particularly in manual and repetitive tasks such as packaging operations. This study aims to analyze the ergonomic risks associated with workers’ postures at the packing station of an oleochemical company and to propose corrective measures to reduce potential MSDs. The assessment employed two ergonomic evaluation methods: Rapid Entire Body Assessment (REBA) to determine posture risk levels and the Nordic Body Map (NBM) questionnaire to identify body regions experiencing discomfort. The results revealed that Worker A obtained a REBA score of 8, indicating a high-risk level that requires immediate corrective action, while Worker B had a score of 3, categorized as low risk. The most frequent complaints were concentrated in the lower back, shoulders, and wrists, primarily caused by repetitive bending and lifting movements from the conveyor to the pallet. The findings suggest that the main contributing factors are improper workstation height, repetitive tasks, and prolonged standing durations. Therefore, ergonomic improvements such as adjusting the height of the conveyor and worktable, implementing scheduled microbreaks, and providing posture training are recommended. These interventions are expected to reduce the risk of MSDs, improve worker comfort, and enhance overall productivity at the packing station.
Co-Authors Dewati Samah, Selfa Dewati Samah Isfus Senjawati, Maria M.Ikhlas Armin Nadiyah, Khairun renny_futeri, Renny Futeri Satria, Andika