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9. Close downstream valve of sample cylinder by hand tightening knob clockwise. <br /> 10. Allow sample cylinder to pressurize to process pressure (max 1.00 psig). <br /> 11. Close upstream valve of sample cylinder and sample port. <br /> 12. Detach filter/cylinder assembly from sample port and remove particulate filter. <br /> 1.3. Replace brass caps. <br /> 14. Fill out sample cylinder sample tag. <br /> 15. Return sample cylinder in box provided. <br /> - Unreturned sample cylinder charge of$650 each <br /> 16. Return sample media in packaging provided. Unreturned equipment charges: <br /> - $45 per particulate filter <br /> 17. Fill out chain-of-custody and relinquish samples properly. <br /> 18. Place chain-of.-custody in box and retain pink copy. <br /> 19. Tape box shut and affix custody seal (if applicable) across flap. <br /> 20. Ship accordingly to meet method holding times. <br /> AIR TOXICS LTD. <br /> 25 <br />