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Specification Material: stainless steel Optional specifications: 0.5L, 1L, 1.5L, 2L Packing Including Lists: 1 set water sampler, including 5m nylon rope, hose, water stop clip, safety buckle Do's and Don'ts (1)When you use the stainless steel water sample collectors, you should put it into the water slowly and vertically, do not throw it violently. (2)Use water samplers in standing water or slow-moving water. Do not use them in rapids or water bodies with weeds or large particles of solid impurities, otherwise the bottom valve may not be closed and compressed, resulting in water leakage. Operation Steps and Requirements (1) Before sampling, place the prepared latex tube over the water outlet of the water sample collection bottle and clamp it with a flatjaw pinchcock, make the outlet of water sample collection bottle close. (2) Select a sampling rope suitable for the sampling depth and firmly tie it to the beam of the water sampler. Make the water sample bottle sink into the water source to be sampled at a constant speed of no more than 1 m/s. (3) The sample is injected from the bottom of the water sampler, and the sample is continuously replaced from the top displacement port. When the water sampler stops at different depths in the container, the sample taken is the sample that represents this depth. (4) When the water sampler sinks to the required sampling depth, the bottom valve and the top cover automatically close. (5) Slowly lift the water sampler, do not touch the bottom inlet to avoid sample leakage, take out the water sampler, open the water stop clip, transfer the obtained sample to the sample container, the sampling is finished.