LINE 1. USEPA APPROVED VOLUMETRIC FLOW CONTROLLED (VFC) TOTAL SUSPENDED PARTICULATE (TSP) SAMPLER, or approved equal. QTY UNITS: 6 - A volumetric flow controlled total suspended particulate sampler is a high-volume air sampler used for the collection of total suspended particulate matter in ambient air with no preference to size selection. Responders to this solicitation must supply with their response, proof of USEPA designation to meet specifications as a reference method for the determination of total suspended particulates in ambient air. — The sampler must meet UL standards. — The sampler must have anodized aluminum outdoor shelter with a gabled roof assembly. — The sampler must have a critical orifice to maintain a flow range between 1.1-1.7 m3. — The sampler must have a brush style vacuum motor. — The sampler must have a digital timer, to turn the vacuum motor on and off, with internal battery back-up for 1-in-3, 1-in-6, and custom scheduling. — The sampler must have an elapsed time indicator. — The sampler must use 8″ x 10″ glass fiber filter filters with stainless steel filter holder assembly. — The sampler must have a pressure recorder to record the flow rate. — The sampler must have a magnehelic gauge with a range of 0-30 inches of water.
