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All Journal Horizon: Indonesian Journal of Multidisciplinary Journal of Advanced Engineering and Technology Research (JODETOS)
Kadek Adi Mahendra
Universitas Lampung
Agriculture, Biological Sciences & Forestry Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Languange, Linguistic, Communication & Media Social Sciences Other

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Analisis Kepuasan Mahasiswa terhadap SOP Terintegrasi: Upaya Harmonisasi ISO 45001:2018 dan ISO 14001:2015 Menuju Green Laboratory Kadek Adi Mahendra; I Made Dwi Mertha Adnyana
HORIZON: Indonesian Journal of Multidisciplinary Vol. 4 No. 3 (2026): HORIZON: Indonesian Journal of Multidisciplinary
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/hijm.v4i3.5402

Abstract

The Highway Laboratory carries significant occupational safety risks and environmental impacts; however, the implementation of standard operating procedures (SOPs) that integrate occupational safety and environmental management aspects remains suboptimal. This study aims to analyze student satisfaction levels toward integrated SOPs based on ISO 45001 and ISO 14001 as an effort to harmonize toward a green laboratory in the Highway Laboratory. This study employed a descriptive quantitative approach using a survey method involving 150 Civil Engineering students from the 2023 cohort who had completed the full series of laboratory practicum sessions. Data were collected using a structured questionnaire consisting of 30 statement items across six measurement dimensions and analyzed using descriptive statistics. The results revealed that the overall student satisfaction level fell into the "Moderately Satisfied" category, with three dimensions obtaining the lowest scores, namely the implementation of occupational health and safety based on ISO 45001, environmental management based on ISO 14001, and the application of the green laboratory concept. These findings indicate that the existing SOPs have not adequately accommodated occupational safety, health, and environmental sustainability aspects. This study affirms the urgency of developing integrated SOPs that harmonize ISO 45001 and ISO 14001 as the foundation for realizing a safe, healthy, and sustainable green laboratory.
Analysis Of Factors Causing Variations In Asphalt Penetration Test Results Among Civil Engineering Students In Highway Engineering Laboratory Practicum Kadek Adi Mahendra
Journal of Advanced Engineering and Technology Research Vol. 2 No. 1 (2026): JODETOS - Mei
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jodetos.v2i1.1416

Abstract

Variations in asphalt penetration test results are a recurring phenomenon in highway engineering laboratory practicums, particularly when tests are conducted by students with differing levels of technical skills and procedural understanding. These variations may compromise the reliability and consistency of laboratory outcomes if not properly analyzed. This study aims to identify and analyze the factors contributing to variations in asphalt penetration test results performed by civil engineering students during highway laboratory practicums. The research employed a quantitative descriptive approach using a survey method. The population consisted of 150 fifth-semester civil engineering students from the 2023 cohort at the University of Lampung, with a sample of 60 respondents selected through simple random sampling. Data were collected using a structured questionnaire based on validated indicators, including compliance with standard operating procedures, time control, temperature control, instrument reading accuracy, needle positioning, and students’ practical experience. Descriptive statistical analysis was applied to evaluate the tendency and distribution of responses. The results indicate that temperature control, time consistency, and instrument reading accuracy are the dominant factors influencing test result variations. The study recommends strengthening procedural supervision, improving laboratory instruction clarity, and integrating simulation-based practicum learning to enhance students’ technical competence and reduce testing variability
Co-Authors Adnyana , I Made Dwi Mertha