Water/wastewater
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The Model 425 Discrete Interval Sampler, from Solinst (Canada), is stainless steel, connected to LDPE tubing, mounted on a convenient reel. It is ideal for obtaining truly representative groundwater samples from below floating product layers, or for obtaining samples of the product itself (LNAPL and DNAPL).
This no-purge sampler is pressurised before being lowered, and upon retrieval, to prevent mixing. A hand pump is used to provide pressure. Pressure is released at the desired depth to obtain a sample.
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