Refining Process Services, Inc has been using Calibrated Instruments, Inc. Cali-5-BondTM gas sampling bags for over 33 years. The quality of the bags has been consistently excellent and
the technical service has always been outstanding. The team at Calibrated Instruments, Inc. has worked with us to customize the bag design, which has allowed us to simplify our sampling
procedures. Over the years, we have used close to 1000 sample bags and we have never had a leak or a loss problem. On several occasions, when we have had to place rush orders,
Calibrated has always been able to meet our (sometimes unreasonable) deadlines. We use the bags in a procedure called Fluid Catalytic Cracking Unit Reaction Mix Sampling, in
which we are obtaining a sample that contains everything from hydrogen and H2S through heavy fuel oil. We chose these particular bags because they are impermeable to hydrogen, inert with
regard to H2S as well as being sturdy and reliable. The bags can be used for sampling a wide a variety of process and exhaust streams in refineries, petrochemical plants and other industrial
operations. We highly recommend Calibrated Instruments, Inc., their product and the personnel without reservation. You may contact me directly if you have any questions.

Refining Process Services, Inc.
(909) 980-5451