B08_Attachment_-_Salient_Characteristic.docx
DOCX document 33 KB Posted
- Attached to
- Thermal Gravimetric Analyzer (TGA)
- Solicitation number
- 140G0126Q0089
About this file
This is a Salient Characteristics attachment defining the technical specifications for a Thermal Gravimetric Analyzer (TGA) system required by the USGS Geology, Energy & Minerals Science Center. The TGA must be a stand-alone, fully integrated system with software support and installed dimensions not exceeding 21" W x 25" D x 25" H, weighing no more than 100 lbs. The system must include a robotic autosampler for high-throughput analysis, a water bath cooling system, and expansion options for peripheral gas analysis devices. The power supply must be factory-set for operation at either 115V or 230V, with an available annual service plan option.
The TGA's gas controller must operate at 1-3 bar pressure and be software-tunable, supporting air, argon, carbon dioxide, nitrogen, oxygen, and helium with a flow rate tolerance of 3 ml/min. The furnace must have a minimum diameter of 20mm and volume of 45 mL with a built-in cooling jacket and cell thermocouple. Performance requirements include heating capability to at least 1100°C with temperature precision of ±0.5°C and a maximum heating rate of at least 250°C/min. The RFQ (140G0126Q0089) will be issued on or about April 7, 2026, with written quotes due April 15, 2026, and anticipated award on April 17, 2026. Delivery is required 56 days after receipt of order to Reston, VA. The NAICS code is 334516 with a size standard of 1,000 employees. Vendors must be registered at SAM.gov, and all responsible sources are eligible to bid. Responses should be directed to rlanderson@usgs.gov.
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Other files
| File | Type | Posted |
|---|---|---|
| Sol_140G0126Q0089_Amd_0001.pdf | ||
| B08_Attachment_-_Salient_Characteristic_update_0001.docx | DOCX document | |
| D01_Attachment_-_52_212-5.pdf | ||
| Sol_140G0126Q0089.pdf |
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Text version
Salient Characteristics:
OVERVIEW TGA SYSTEM
· Must be a stand-alone and totally integrate thermal gravimetric analyzer (TGA) with software support
· Must have a gas controller capable of supporting multiple input gases
· Must come with a robotic autosampler for high throughput analyses
· Must have expansion options to include supporting peripheral devices for gas analysis
· Must have installed dimensions no greater than 21” W, 25”D, 25” H
· Must weigh no more than 100 lbs (44kg) installed
· Must have factory set power supply capable of operation at 115V or 230V.
· Must have an available annual service plan option
GAS CONTROLLER AND GAS TYPE
· The TGA must have a built-in gas controller, capable of operation at 1-3bar pressure
· Must be tunable/adjustable with instrument software
· The following gases must be approved for use with the TGA and included gas controller: air, argon, carbon dioxide, nitrogen, oxygen, helium
· The controller must have a flow rate tolerance of ±3ml/min
WATER BATH COOLING SYSTEM
· The TGA must come with a water bath cooling system to cool the furnace and microbalance during operation to prevent overheating
FURNACE
· The TGA system must come with a furnace with minimum diameter of 20mm (0.75”) and a minimum volume of 45 mL to support a variety of material volumes and crucible types
· The furnace must contain a cooling jacket
· Must contain a built-in sensor with a cell thermocouple
· Must be capable of heating to at least 1100°C
· Must have temperature precision of ±0.5°C (K)
· Must have a maximum heating rate of at least 250°C/min
· Must have a cooling time <25 mins
BALANCE
· The TGA system must come with a built-in microbalance with a mass limit of 1 gram
· Must have a measurement precision of ±1 mg
· Must be temperature controlled for improved precision via connected water circulator
· Must be purgeable with non-reactive gas to prevent damage to the microbalance
SAMPLING ROBOT
· The TGA system must come with a sampling robot automate loading of the sample carousel
· The robot must place sample crucibles on a turntable prior to analysis and remove them after analysis is complete
· The robot must come with a lid piercing kit and support transfer of multiple size crucibles
SOFTWARE
· The TGA system must come with software with support
· The software must allow for network connectivity
· The software must allow for automated back-ups of raw instrument data
SUPPORTED PERIPHERAL DEVICES
· The TGA system must be able to be expanded to support peripheral devices that analyze the gas composition including:
· Mass Spectrometer (TGA-MS)
· Fourier Transform Infrared Detector (TGA-FTIR)
· Fourier Transform Infrared Mass Spectrometer (TGA-FTIR/MS)
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