U. S. Environmental Protection Agency, Contracts Management Division (MD-33), Research Triangle Park, NC 27711

66 -- PC-TITRATE AUTOTITRATOR SYSTEM SOL RFQ-RT-98-00059 POC Marsha Johnson, Contract Specialist (919) 541-0952 The Environmental Protection Agency has a requirement for a PC-Titrate autotitrator system, including automatic buret, autosampler module, and operating hardware and software. The instrument will be used primarily for potentiometric titrations to determine acid neutralizing capacity and/or alkalinity in water samples. Expected range of sample values is from -100 to >1000 microequilvalents/liter (1 mg calcium carbonate alkalinity = 20 microequivalents). Daily sample loads can be > 20 per day. Additionally, the system must meet the following specificiations: (1) Multiple-sample titration system, with automatic burettes and some type of autosampler component to allow for multiple samples to be analyzed.(2) Sample management capability including input of information such as sample ID, date and time, method, titration characteristics and conditions.(3) Combination pH electrode suitable for use in low ionic strength samples. (4)Display with graphics capability to display titration curve in progress, and identify inflection points.(5) Capable of performing a variety of titration techniques, including fixed endpoint, inflection point, Gran analysis for acid neutralizing capacity, and continuous, as well as back titrations. User-programmable methods capability required. (6) Operational mode must be such that individual measurements are made and recorded on unstirred sample. (7) Capable of determining titrant concentration prior to analysis. (8) Flexible reporting capability of sample results and titration details. (9) Software for operating instrument and reporting results must be Windows-compatible, and available on 3.5 inch diskettes. (10) Technical support (on-site or telephone) from vendor or manufacturer must be included. (11) Power requirements: 110V AC. EPA anticipates an award of a fixed price purchase order using Simplified Acquisition Procedures. This procurement is a total small business set aside and the SIC code number is 3826 with a size standard of 500 or fewer employees. All interested partiesmust submit a written request for the Request for Quotation (RFQ)within 15 days from the date of this notice to the U.S. Environmental Protection Agency, Attn: Marsha B. Johnson, (MD-33) Contracts Management Division, Research Triangle Park, N.C. 27711. Telephone or fax requests will not be honored. See Note 1. (0308)

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