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The Ogawa Passive Sampler is a simple passive sampler, requiring no outside source of power which can determine the quantity of basic air-quality gases in ambient air, including O3, NO, NOx, NO2, SO2, and NH3. It is extremely accurate, easy to ...

Seward Limited has been manufacturing and developing the legendary Stomacher Lab Blender for 40 years. The original and still regarded as the best, more than 8 million food samples a day are prepared on Stomacher 400 paddle blender units around the ...