BS EN 17542-3:2022 PDF

Scope: 1 Scope This document describes the reference method for the determination of the methylene blue value ( V BS ) in soils and rocks for earthworks. The test is based on measuring the quantity of methylene blue that can be adsorbed by the material suspended in water. This quantity of adsorbed methylene blue is reported by direct proportionality to the 0/50 mm ground. The soil blue value is directly related to the specific surface area of the soil particles or rocky material. NOTE The V BS test uses common equipment and calibration as the methylene blue test MB for aggregates (EN 933‑9), but it applies to another granular fraction (5 mm for V BS and 2 mm for MB, respectively). Thus, the results obtained between the two tests cannot be compared in the general case.

BS EN 17542-3:2022 Referenced Document

EN ISO 1042 Laboratory Glassware - One-Mark Volumetric Flasks
EN ISO 17892-1 Geotechnical investigation and testing - Laboratory testing of soil - Part 1: Determination of water content - Amendment 1 (ISO 17892-1:2014/Amd 1:2022)
EN ISO 17892-4 Geotechnical investigation and testing - Laboratory testing of soil - Part 4: Determination of particle size distribution
EN ISO 3819 Laboratory glassware - Beakers (ISO 3819:2015)
EN ISO 385 Laboratory glassware - Burettes
EN ISO 835 Laboratory glassware - Graduated pipettes

2022 BS EN 17542-3:2022 Earthworks. Geotechnical laboratory tests - Methylene blue value VBS on soils and rocks