U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

66 -- TOTAL ORGANIC CARBON ANALYSIS SYSTEM SOL ORD 25 DUE 033099 POC Hans Schellhas or Marie Nichols WEB: na, na. E-MAIL: U.S. EPA -- Cincinnati Contracts Management Division, schellhas.hans@epamail.epa.gov. This amendment corrects errors in the System Requirements of the Commerce Business Daily (CBD)submission 305670 resulting from improper translation of special (extended) characters during the upload of information to CBDNet. Special characters have now been replaced with plain text and the affected sections are reprinted here in their entirety. Only the affected sections appear below. All other sections remain in force as originally listed. The deadline for quotation submissions has been extended 5 days and bids must be received by COB on March 30, 1999. In addition, the required date for delivery and installation of the entire system has been extended from 60 days from the date of award to 90 days from the date of award. All quotations must include a fully completed copy of the applicable provisions and Representations and Certifications as referenced in the original CBD synopsis. The affected sections of the System Requirements are the following: 1. Instrument control and data analysis software must be Windows-based. Computer hardware must be Pentium-based running at a minimum of 166 MHz, with at least a 2.5 GB HDD, at least 32 MB RAM, with SVGA monitors and 3.5-inch 1.44 MB FDD. Systems must include high capacity storage units, e.g., Zip or writeable CD-ROM drive, but not streaming tape. A laser printer and printer-sharing software/hardware are required. Computer selection is subject to the approval of the NRMRL ADP coordinator. Hardware must be sufficient that at least two of the modules may be run simultaneously. It is highly desirable that all three modules may be run at the same time. Instruments must be interfaced to computers so that electronic copies of data files may be archived, retrieved, or reanalyzed. Software must be capable of these functions. Software must permit viewing the analysis in real time. 4. Three separate destruction modules, each of a different type, must be included as described below. All modules must be controlled by software capable of setting all instrument parameters. Allmodules must be capable of multi-point calibration, total analysis time up to 10 minutes/sample, and variation of less than or equal to 5% of replicate analyses of a sample containing 0.1 mg/L TOC. A. Module 1 shall use peroxydisulfuric acid wet ashing and shall be photoactivated using ultraviolet light. Module must function over a TOC concentration ranging from 0.050 mg/L to 2 g/L. B. Module 2 shall use peroxydisulfuric acid wet ashing and shall be activated themally. Module must be capable of heating the sample to a temperature of 110 degrees Celsius. Module must function over a TOC concentration ranging from 0.050 mg/L to 0.1 g/L. Variable sample size must be optional, either by changing sample loops or using multiple injections of a small loop. C. Module 3 shall be of the combustion type, using flowing oxygen, high temperature, and an appropriate transition metal (alloy) catalyst. The module must be capable of a temperature ranging from 300 to 950 degrees Celsius. The module must function over a TOC concentration ranging from 0.80 mg/L to 3.5 g/L. One catalyst must be capable of functioning over the entire temperature range. Capability to vary sample size from 10 microliters to 1.5 mL (minimum range) must be available. This module must include accessories or attachments necessary for the analysis of solid samples up to 1 g that contain 50 micrograms to 30 milligrams of carbon. Posted 03/17/99 (W-SN309637). (0076)

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