Controlling Costs and Reducing Errors in Liquid Grab Sampling  - Karim Mahraz, Product Manager, Analytical Instrumentation, Swagelok Grab sampling plays a critical role in accurate, profitable industrial processes. The practice can help validate process conditions, ensure end products are up to specification, and provide the information necessary to evaluate environmental emissions. However, grab sampling—also called spot sampling, laboratory sampling, field sampling, or closed-loop sampling—can be complex and challenging to execute correctly. Even small errors can negatively impact sample representativeness and production, driving up operating costs. It is important that individual operators and technicians are equipped with the right skills to perform…