Questionnaire survey results in the 2021 proficiency test for particle size distribution of soils

TAIRA NOBUAKI

[21-10-2-03] Questionnaire survey results in the 2021 proficiency test for particle size distribution of soils

*TAIRA NOBUAKI¹, Teruyuki Fujiwara², Sunao Nakagawa³ (1. HoKKaido Soil Research Cooperative, 2. Geo-Research Institute, 3. Japan Geotechnical Consultants Association)

Keywords:Proficiency test , Questionnaire Survey, particle size distribution of soils

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[21-10-2-03] Questionnaire survey results in the 2021 proficiency test for particle size distribution of soils

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