Solinst Discrete Interval Samplers(425 & 425-D) Description：

Datasheet

The NEW 425-D Deep Sampling Discrete Interval Sampler can sample from submerged depths as much as 1200 m (4000 ft). The stainless steel sampler connects to the same convenient tubing reel as the standard 425. Operation follows the basic principles of hydraulics. The sealed sampler is pressurized at depth allowing water to enter. The sampler is vented and sealed before retrieval to surface, maintaining sample integrity.

Representative water samples to submerged depths of up to 1200 m (4000 ft)

No compressor needed, use a simple bike pump

Ideal for deep water sampling of boreholes, wells, lakes, and oceans

Perfect for applications similar to deep abandoned mine shaft monitoring

Simple to use and to decontaminate

The Model 425 Discrete Interval Sampler is a stainless steel groundwater sampler with LDPE tubing mounted on a convenient reel and is pressure activated using a hand pump. The sampler is pressurized before being lowered, and upon retrieval, to prevent mixing. Pressure is released at the desired depth to obtain a sample. Ideal for sampling from depths as much as 90 m (300 ft) below water level.

High quality, discrete zone samples

Profile wells or open bodies of water

Easy operation and transportation

No mixing of water from different levels

Avoids purging and disposal of purged water