Vironex uses the Dual Wall Sampling System for discrete depth or continuous core soil samples when in collapsing hole conditions or when cross contamination between aquifers is a concern. The Dual Wall Sampler is comprised of two main components: an exterior steel casing and an inner window sheath or split spoon sampler. The casing and sampler are offered in two sizes:
Standard: The outer casing has a 2-inch outer diameter (OD) and a 1.5-inch inner diameter (ID). The split spoon is 2 feet in length with a 1.375-inch outside diameter (OD) and a 1-inch inner diameter (ID). Each split spoon sampler houses four 1-inch x 6-inch brass or stainless steel liners, or one 1-inch x 2-foot clear acetate liner. The standard dual wall sampling system is used with a Geoprobe 6600, 66DT, 5400, 5410, 54LT, and Vironex's limited access units.
Large: The outer casing has a 3.25-inch outer diameter (OD) and a 2-inch inner diameter (ID). The window sheath sampler is 2 feet in length with a 2-inch outside diameter (OD) and 1.75-inch inner diameter (ID). Each window sheath sampler houses four 1.75-inch x 6-inch brass or stainless steel liners, or one 1.75-inch x 2-foot clear acetate liner. The large dual wall sampling system is used with a Geoprobe 6600 and 66DT units.
Dual Wall Sampler Standard Operating Procedure
Vironex uses the Dual Wall Sampling System for discrete depth or continuous core soil samples when in collapsing hole conditions or when cross contamination between aquifers is a concern. The Dual Wall Sampler is comprised of two main components: an exterior steel casing and an inner window sheath or split spoon sampler. The casing and sampler are offered in two sizes: