Tab 04 SOW Revised.pdf

STATEMENT OF WORK

Objective/Requirements

The NASA Langley Research Center has a requirement for a PerkinElmer Dual range Mid-infrared (MIR) Fourier transform infrared (FTIR) Spectrometer system, BRAND NAME OR EQUAL, capable of acquiring high-quality FTIR data across both spectral regions using a single integrated platform.

Characteristics, Scope, and Specs

LINE DESCRIPTION QTY.

1 Dual MIR/NIR FTIR Spectrometer (KBr/CaF2 OR EQUAL) 1 2 Required Power Cords and Cables (14 AWG 2M 125V 15A OR EQUAL) 1 3 Windows 11 Computer Workstation compatible with Instrument Software 1 4 Minimum 24 inch monitor 1 5 Instrument control and full data analysis software compatible with Windows

6 ATR Accessory 1 7 NIR Reflectance Accessory 1 8 NIR 60mm Spinner Accessory compatible with the NIR reflectance system 1

All equipment shall be fully integrated, operational, and ready for use upon installation.

Purpose of Acquisition

The purpose of this acquisition is to acquire a dual range mid-infrared (MIR)/near-infrared (NIR) Fourier transform infrared (FTIR) spectrometer capable of measuring sample absorption and transmission over the range of 14,700 to 350 cm-1 on a common spectrometer platform. This instrument should be capable of automated range switching to measure the MIR and NIR transmission without requiring any movement of the sample or accessory switching which introduces measurement error and uncertainty. This instrument must also include ATR and NIR reflectance accessories. The system should also be capable of future upgrades including additional plug-in sampling accessories and heatable transmission accessory.

Spectrometer Design

• The manufacturer shall have ISO 9001 certification for the design, manufacture, and service of the FTIR instrument or an equivalent internationally recognized standard covering instrument design, manufacture, and service.

• The system shall offer Mid and Near–IR on a single integrated spectrometer platform. The single spectrometer system (or common platform) has to be capable of collecting MIR and NIR measurements without transferring the sample between instruments or sample holders/locations.

The development of both MIR and NIR methods on a common spectrometer platform allows comparison of measurements on the same sample under substantially identical conditions.

• The spectrometer shall provide stability sufficient to meet all stated accuracy, precision, and signal-to-noise requirements without routine alignment. Effects from mirror tilt and shear should be minimized.

• The system shall include automated range switching between Mid and Near-IR measurements to further increase ease and productivity. Automated range switching shall enable single button range change incorporating automatic change of source, beamsplitter and detector. Automated range switching changes the spectral range from Mid to Near-IR and the optics are never exposed to air and no re-stabilization is required.

• The spectrometer shall allow the full range of MIR and NIR to be observed without having to expose the beamsplitter and internal spectrometer optics to atmosphere. Unstable compounds may decompose and produce unreliable data during unnecessary delay.

• Changing the system from Mid-IR to Near-IR shall be accomplished without removing the sample from the sample compartment or accessory. Removing the sample from the sample compartment or accessory introduces another level of uncertainty when looking to run the same sample (with the same conditions) in different wavelength ranges.

• Beamsplitter changeover shall be performed without the recommendation that users remove samples and/or accessories to perform auto-alignment. Re-alignments and auto-alignments that recommend that the sample and/or the sample accessory be removed from the sample compartment lead to uncertainty of sample position and additional equilibration time of 30-45 minutes.

• The system shall share a common optical design and sampling accessories with the vendor's dedicated MIR and NIR systems.

• Instrument shall offer an integrated method to ensure high instrument-to-instrument stability and line-shape calibration technology. A calibration cell that meets or exceeds this requirement will be considered if it maintains full compliance with all instrument performance requirements and demonstrates appropriate traceability (e.g. NIST-traceable standards).

• The system shall be a sealed and desiccated optical unit covering the range 14,700 – 350 cm-1.

• The system shall incorporate a vibration isolated baseplate

• The system shall maintain all specified accuracy, precision, and signal-to-noise requirements without routine optical alignment throughout normal operation.

• The mid -IR source shall be pre-aligned and incorporate electronic stabilization. Stabilization shall change the polarity through the source frequently to give the system higher sensitivity and increased performance. Without stabilization, the hot-spot can move out of the field of view of the optical system. Although the source is still apparently working, the energy seen by the detector drops radically. Changes in the energy uniformity will cause the instrument’s wavenumber scale to drift and the source to require replacement prematurely. The source shall be user replaceable to help maintain a lower cost of ownership.

• The system shall include a pre-aligned tungsten-halogen NIR source

• The system shall include an automated NIR and MIR source switching assembly.

• The system shall include integrated methods for routine verification of instrument performance, calibration, and spectral integrity across MIR and NIR operating ranges using traceable reference materials or equivalent standards.

• The system shall include a multi-layer potassium bromide beamsplitter for the Mid-IR spectral region OR equivalent and a wide-range multi-layer calcium fluoride beamsplitter for the NIR spectral region OR equivalent

• The system shall utilize high reflectivity, gold coated reflecting optics incorporating low angle off-axis design for optimal throughput.

• The system shall include two temperature stabilized, fast-recovery detectors; one optimized for MIR and one optimized for NIR.

• The system shall be configurable for other detector options including a liquid nitrogen cooled

MCT.

• The system shall include external windows/sample windows. External windows allow fast changeover for optimal spectral performance without having to open the spectrometer cover and contaminate the entire system with atmospheric vapor.

• The system shall include a desiccated storage area that allows storage of up to four optical windows. The desiccated storage area should be external and not allow access to the beamsplitters or internal optics as this can cause unwanted changes in the internal atmospheric conditions on the instrument.

• The system shall include a humidity indicator.

• The system shall include the option to add fast scanning for time resolved measurements, with the ability to collect spectra at >90 scans/second

• Base Instrument Footprint:

Weight: 100 lbs maximum

Depth: 25 inches maximum

Width: 27 inches maximum

A. System Performance

• The instrument must be capable of continuous measurement covering at least 14,700 cm-1 to 350 cm-1

• The vendor shall demonstrate a Signal to Noise of better than 50,000:1 RMS under the following conditions:

o 2200 cm-1 to 2000 cm-1 o 4 cm-1 spectral resolution o 5 second background and sample acquisition times

• The vendor shall also demonstrate a Signal to Noise of better than a 174,000:1 RMS for a 1-minute data acquisition time (all other conditions the same as above)

• For Near-IR performance, the vendor shall demonstrate better than 10 x 10-6 Abs RMS in a 250 nm spectral range, around 1600 nm for a 1-minute scan

• The vendor shall demonstrate wavenumber precision of 0.008 cm-1 at 2,000 cm-1

• The vendor shall demonstrate wavenumber accuracy of 0.02 cm-1 at 2,000 cm-1

B. Accessories and Upgradability

• The system shall offer a large sample area providing plug-and-go capabilities for a wide range of MIR and NIR sampling accessories

• The system shall be configurable for a two sampling positions – one for NIR diffuse reflectance measurements in addition to the central sampling compartment

• The system shall be compatible with commercially available Mid and Near-IR sampling accessories from both the instrument manufacturer and third-party vendors.

o A large range of sampling accessories provides the flexibility to measure almost any solid, liquid, powder or paste across both MIR/NIR spectral ranges.

o The ability to use a wide variety of accessories either from the instrument manufacturer or a third-party accessory vendor will provide maximum flexibility of the system while still offering the flexibility to shop around for additional accessories.

• The system shall offer accessory options including ATR and NIR Reflectance, as well as future compatibility with transmission accessories, heated accessories, tablet/powder accessories, and fiber-optic probes.

o A large range of sampling accessories provides the flexibility to measure almost any solid, liquid, powder or paste across the whole NIR/MIR range.

ATR Accessory:

1. The accessory should be automatically recognized and the information recorded by the software – including the type of ATR crystal within the accessory

2. There should be no routine optical alignment required for the accessory

3. The applied sample pressure and any equivalent sample-contact metrics should be automatically recorded and stored as part of the data file.

NIR Reflectance accessory:

1. This accessory should support reflectance measurements of solids and transflectance measurements of liquids.

2. The accessory should provide repeatable sample positioning and measurement performance

3. Include reference materials and sample handling tools

4. Support optional sample spinners, transflectance adapters, and sample holders

5. Offer a wide collection angle and large spot size the most representative sampling.

6. Should be supplied with sample positioner, reference materials, and sample handling tools.

7. Offer a range of optional accessories available for inhomogeneous solids or liquids samples that includes a sample cup spinner that fits the NIR reflectance accessory.

8. The accessory should either be easily removed and replaced or permanently incorporated into the spectrometer by mounting directly on the external beam port of the spectrometer.

• The system should offer a commercially available upgrade path to time-resolved measurements that is capable of collecting spectra at rates exceeding 90 scans per second.

Verification of Compliance

- Offerors shall describe how MIR and NIR measurements are acquired on the same sample, how switching occurs, how sample position is preserved, and how performance is maintained after switching. Offerors shall provide published specifications, technical literature, and/or test data documenting compliance with each requirement.

Equivalency Standard

- Brand-name references establish the required quality, functionality, performance, compatibility, and expandability.

- Alternative designs are acceptable if all performance and functional requirements are met or exceeded.

Statement on Spectrometer Design-Specific Requirements

The previous design requirements have been included because they directly support the precision, accuracy, stability, and operational reliability required for the intended measurements. However, alternative design implementations will be considered where an offeror can clearly demonstrate equivalent or superior performance through validated specifications, technical literature, or test data. However, where specific design requirements are necessary to preserve measurement integrity or operational feasibility, they must be met.

Installation and Warranty

The contractor shall either provide on-site installation and system checkout or provide detailed written installation instructions sufficient for NASA personnel to safely install, configure, and place the system into operational service. All required installation procedures, utilities, and configuration requirements shall be documented and provided with the system. The system shall include a minimum one-year manufacturer warranty covering parts, labor, travel, and on-site service for all instrument components, detectors, software, and accessories supplied under this order.

Software and Computer System Requirements

All software must be able to run and process data on Windows 11 systems. The computer system needs to have a wired mouse and keyboard. The instrument system, computer system, software, and any accessories must not have Bluetooth or Wi-Fi or require a connection to the internet to run. This system must be able to operate as a stand-alone system without any external network connections. Software licensing shall remain functional without internet or network connectivity after initial activation.

Deliverables

The contractor shall provide:

Instrument Accessories Computer workstation Software licenses User manuals Installation instructions Calibration/performance verification documentation Warranty documentation

Place of Performance

NASA Langley Research Center

ATTN: Building 1146 Hampton, VA 23185

Period of Performance

30 days ARO.