The objectives of this research were to determine the work posture risk level and suggest recommendation of improvement on small factory of corn chips. NBM questionnaire was used to find out workers' complaints encountered from the work they have done. OWAS method was conducted with WinOWAS software, involving six workers and 31 work postures. NBM indicates that workers do enduring the feeling of sore on their neck, back, hand, and feet during and after work. 42%, 6%, 26%, and 26% of activities were at category 1, category 2, category 3, and category 4 respectively.

AbstrakPT. XYZ menghasilkan produk utama yaitu minyak goreng (olein). PT. XYZ dalam memastikan mutu dari minyak goreng dilakukan pengujian laboratorium berupa uji FFA, M&I, IV, PV, M.Pt o C dan colour. Namun, untuk pengujian paling dasar dan penting dilakukan adalah uji FFA (Free Fatty Acid) dan colour dari minyak goreng. Penelitian ini bertujuan untuk mengetahui penerapan pengendalian mutu FFA dan colour minyak goreng produksi PT. XYZ. Data kandungan FFA dan colour minyak goreng PT. XYZ diperoleh dengan cara pengamatan langsung pada laboratorium tempat uji dilakukan, selama sembilan hari. Ketidaksesuaian FFA dan colour dengan spesifikasi yang ditetapkan kemudian dievaluasi penyebabnya, menggunakan diagram sebab-akibat. Faktor-faktor penyebab permasalahan pada diagram sebab-akibat diperoleh dengan pengamatan langsung dan wawancara dengan pekerja serta atasan bagian produksi PT. XYZ. Dari sampel yang dianalisis diketahui bahwa karakteristik mutu FFA dan colour minyak goreng PT. XYZ sudah memenuhi standar yang ditetapkan. Kata kunci: colour, FFA, minyak goreng, sebab-akibat, uji mutu Fatty Acid) Abstract PT. XYZ is producing main product of cooking oil (olein). On ensuring the quality of its cooking oil, PT. XYZ is conducting several test, with two basic and important test need to be done are FFA (Free

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This research investigated conditions of mental workload among workers in Indonesian small foodproducing business, and how work and workers characteristics might influence the workers’ mental workload. A corn chips business located in an industrial central of corn chips in Malang municipality, Indonesia was the research object, in which its seven workers were involved as participants. NASA-TLX measurement involving six mental workload subscales was deployed to observe the current state of workers mental workload, along with determination of mean WWL value as representation of mental workload level. Measured NASA-TLX subscales varied among tasks and subscales, with indications of exposures of mental workload to the workers. This was indicated by high ratings of Mental Demand, Temporal Demand, Effort, and Frustration subscales which reached 70, 80, 90, and 70, respectively. Mean WWL values were in the range of 46.00 to 70.67, with the highest value observed was on Task 2 with 70.67 and Task 5 has the lowest value of 46.00. It is suggested that tasks and workers characteristics could have different influence on the observed mental workload subscales ratings and WWL. This research provides base of understanding and findings on states of workers’ mental workload in Indonesian small food-producing business.