Statement of Requirement (Final).pdf

STATEMENT OF REQUIREMENTS

TITLE: THERMO SCIENTIFIC NEOMA™ MULTICOLLECTOR ICPMS (HIGH-

RESOLUTION MULTIPLE-COLLECTOR-INDUCTIVELY COUPLED PLASMA

MASS SPECTROMETER (HR-MC-ICP-MS)) SYSTEM

BACKGROUND:

The National Institute of Standards and Technology (NIST), Inorganic Chemical Metrology

Group (ICMG) performs elemental and isotopic measurements using a variety of spectro-chemical instrument methods, fulfilling customer needs through the provision of NIST Standard

Reference Materials (SRMs) and development of methods used for the value assignment of elemental and isotopic data to SRMs. The group has been focused on the certification of accurate high precision isotopic reference materials (RMs) and SRMs. New developments in HR-MC-

ICP-MS instrumentation have led to isotope ratio measurements where uncertainties better than

0.01%, relative, are achievable. Such measurements are two orders of magnitude more precise than many of the standards used to benchmark them necessitating the delivery of SRMs and RMs that can exceed these new measurement capabilities. Additionally, the group plans to expand their isotope RM/SRM program to include the development of matrix-based reference materials for isotope metallomics, the use of metal isotope systems in biology and medicine, applications.

The advances in HR-MC-ICP-MS have revealed that elements such as zinc (Zn), copper (Cu), iron (Fe), and many of the other metals do show isotopic variations that were previously thought to not show any natural fractionation. Small metal isotope fractionations in clinical samples have shown that they can be excellent diagnostics tools for disease. However, there are no RMs/SRMs available that are certified for metal isotope composition which are needed for method development and validation. The new HR-MC-ICP-MS will continue to support the development and certification of accurate high precision isotopic benchmark RMs/SRMs and will form the basis for an expanded focus by NIST on producing matrix-based SRM/RM materials certified for isotope composition for the isotope metallomics community.

SPECIFICATIONS:

The contractor shall furnish the necessary personnel, material, equipment, and services to fabricate, deliver, install and test one Thermo Scientific NEOMA™ Multicollector ICPMS (High-

Resolution Multiple-Collector Inductively Coupled Plasma Mass Spectrometer (HR-MC-ICP-

MS)) with high-resolution capability (> 12,000 resolving power), an autosampler and membrane desolvator, that will fit within a 100 square foot space that meets or exceeds the technical specifications/requirements described herein.

System Requirements:

Section 1: Sample Introduction System (Nebulizer, ICP Torch, Spray Chamber, ion source etc.)

1. The Thermo Scientific NEOMA™ Multicollector ICPMS instrument must include sample introduction system, that after no more than two (2) ignition cycles, must produce a stable plasma when any of the commonly available ICP nebulizers (cross-flow, concentric, microconcentric), spray chambers (cyclonic, Scott-type and combinations thereof; cooled or not) and desolvation apparatus are used to perform analyses.

In addition, stable plasmas must be obtained when commonly used alternate sample introduction systems such as Laser Ablation, electrothermal vaporization (ETV), flow injection analysis (FIA), gas chromatography (GC), high performance liquid chromatography (HPLC) systems are interfaced to the instrument. The instrument design must permit switching between different sample introduction systems.

2. A low flow Teflon perfluoroalkoxy (PFA) microconcentric nebulizer, a spray chamber optimized for isotope ratio measurements (e.g., dual stage spray chamber), cyclonic spray chamber, PFA spray chamber, and a minimum of 2 demountable torches with o-ring free injectors must be provided with the instrument. The microconcentric nebulizer must be provided with low flow (20 ul/min, 50 ul/min, 100 ul/min and 200 ul/min) integrated autosampler Probes (PolyEtherEther-Ketone (PEEK) or Carbon).

3. The instrument’s cooling, auxiliary and nebulizer gas flows must use mass flow controllers (MFCs).

4. The instrument must have a minimum of 2 additional programmable/digital external

MFCs. At a minimum, one controller must be optimized for a helium (He) and argon

(Ar) gases to be used with a laser ablation system and one controller must be optimized for nitrogen (N2) and oxygen (O2). The mass flow controllers must be software controlled allowing the user to independently adjust flow rates of the two channels.

5. The instrument shall include an Elemental Scientific Inc. (ESI) SC-2 DX (with FAST option), or equivalent, hydrofluoric-acid (HF)-resistant auto sampler system with microflow PFA nebulizer with integrated Autosampler Probe (PEEK or Carbon) capable of flow rates ranging from 0.02 mL/min to 2 mL/min, holding samples from 0.5 mL to

250 mL and equipped with a High Efficiency Particulate Air (HEPA) filtered enclosure.

Salient characteristics: autosampler shall include dual flowing rinse stations, fluoropolymer injection valve, Teflon sample loop, software and an on-line internal standards addition tee. Autosampler shall be compatible with peltier cooled sample inlet systems, including inert (HF-resistant) systems, and also capable of flow rates ranging from 0.05 mL/min to 1 mL/min. The autosampler must be capable of sampling from racks housing vials of 4 mL, 10 mL, and 50 mL capacity at a minimum. And the autosampler must be compatible with the instrument software.

6. A low flow high efficiency membrane desolvation system capable of providing high analyte transport efficiency and reduced oxide and hydride formation must be provided with the instrument. The system must include a low flow nebulizer, temperature controlled PFA spray chamber, and desolvation system that allows for stable signals. The system must also allow for computer control of the temperature and gas flows (mass flow controllers). Additionally, the membrane block must be removeable for cleaning and maintenance.

Salient characteristics:

a. Minimum sensitivity enhancement of 10x vs. standard sample introduction system (R = 300: count rates > 10 x 10e6 cps/ppb In);

b. CeO/Ce < 0.05 %; Ce (Cerium)

c. Sample uptake rates of ≤ 400 µL/min;

7. The instrument must be supplied with a peristaltic pump with a minimum of 3 channels

(4 channels is preferred) that can be controlled by the instrument software. Appropriate compatible drainage tubing must also be provided for the peristaltic pump.

8. A moveable sample table of dimensions < 28 inches width x 36 inches depth with lockable wheels must be supplied to accommodate the autosampler and membrane desolvator.

9. The plasma and interface must be easily accessible in that user has enough space

(minimum of 12 inches) to visually see the cones for examination and replacement and attaching peripheral devices for chromatographic separations (e.g., gas chromatograph, HPLC), membrane desolvation system, and solid sampling (e.g., laser ablation) necessitating both to be at ground potential. The cone mountings must allow for replacement to be performed by the user. An automatic gate-valve, isolating the plasma interface from the focusing lens assembly, must be installed. Extraction lens must be of plug-in type.

10. Procedures for plasma shutdown and start-up must be automated to provide full protection of the vacuum and electrical systems.

11. The system must be equipped with specific water chiller(s) to cool the interface and turbo pumps as well as the magnet of the instrument. The chillers used with devices operating at high voltage must be equipped with safety interlock features: conductivity meter, emergency shutdown, etc. Additionally, a pre-water filter must be supplied and installed with the water chiller to extend the life of the chiller.

12. The torch position must be capable of being optimized in three directions (X, Y, Z) under full computer control. The torch shall be fitted with a Pt guard electrode.

13. Ion source settings for various analysis regimes must be able to be stored and accessible for later use.

Section 2: Analyzer and Ion Optics

14. The analyzer must have an effective mass range of 3-300 m/z.

15. Simultaneous (i.e., static) mass range of a minimum of 17 % (mass dispersion) for all m/z configurations at the multiple collector focal plane. Additionally, the instrument must be able to measure the uranium (U) and lead (Pb) isotopes simultaneously.

16. The analyzer shall have a dynamic zoom to adjust for mass dispersion within a dynamic measurement sequence of several isotopes without repositioning the detector array.

17. The low-resolution setting must meet or exceed 300 (10 % valley definition, determined as a M/ΔM ratio, where ΔM is the mass range of the peak slope between 5 % and 95 % of the peak maximum intensity and M is the mass of the peak center) for all Faraday collectors.

18. Abundance sensitivity at the low-resolution setting must be less than or equal to 5 ppm at mass 237 with respect to 238U.

19. The analyzer system must allow for an energy filter for enhanced abundance sensitivity to be retrofitted. Abundance sensitivity measured with the filter, optimized for maximum transmission, must be less than or equal to 0.5 ppm, determined using the same procedure described in Item 18.

20. High resolution settings must be available for isotopic analyses of elements in the presence of molecular ions with the same nominal mass numbers. The high-resolution settings shall be achieved using selectable slits. A medium resolution (>4000) must be achieved with a signal sensitivity of 10 % or higher relative to the sensitivity at low resolution. The sensitivity at the highest resolving power >8000 must be 5 % or higher relative to the sensitivity at low resolution.

21. Additional enhanced resolution (resolving power > 12,000) capability shall be provided to resolve hydride interferences (e.g., 41K from 40Ar1H) from relevant isotope systems of interest including potassium (K) and magnesium (Mg).

22. Individual faraday cup detectors shall be adjustable for optimization of medium and high edge resolution and interference mitigation.

23. The instrument must meet the following minimum sensitivities using a standard sample introduction system (fitted with typical Ni cones) with the nebulizer sample uptake rate of 100 µL/min, measured on a Faraday collector with a 1011 Ohm feedback resistor and the system optimized for minimum CeO/Ce ratio.

Element Sensitivity (V/ppm) 7Li (Lithium) > 12 56Fe (Iron) > 8 88Sr (Strontium) > 40 138Ba (Barium) > 20 142Nd (Neodymium) > 40 208Pb (Lead) > 45 238U (Uramium) > 45

24. The analyzer environment must be thermostatically controlled in order to contribute to

“mass bias stability”, which leads to better precision and long-term reproducibility.

Section 3: Collector Assembly, Ion Current Measurement, Amplification and Gain Calibration

25. The collector assembly shall have at least 11 faraday collectors and must enable static analyses of all isotopes listed below (at a minimum) and associated interferences: lithium

(Li), boron (B), magnesium (Mg), Calcium (Ca), potassium (K), iron (Fe), nickel (Ni), copper (Cu), zinc (Zn), strontium (Sr), molybdenum (Mo), barium (Ba), thallium (Tl), lead (Pb), and uranium (U).

26. The current amplifiers for the Faraday collectors shall consist of a minimum of two (2)

1010 Ω ((≥ 500 V dynamic range), eight (8) 1011 Ω (≥ 50 V dynamic range) and three (3)

1013 Ω ((≥ 0.5 V dynamic range) resistors. It must be possible to switch the amplifiers on the detector cups via the computer software for the instrument.

27. The amplifier environment must be thermostatically controlled in order to contribute to

“baseline and gain stability”, which leads to better precision and long-term reproducibility.

28. Variation in efficiencies amongst Faraday collectors must be less than 50 ppm over the first year of normal operation.

Section 4: Ion Counting System

29. In addition to Faraday collectors, the collector assembly must have at least one ion counting detector. The system must also be capable of retro-fitting additional ion counters.

30. All necessary hardware and software required to operate in pulse counting mode must be provided (e.g., pre-amplifier, amplifier, discriminator and counting electronics).

Electronic parameters must be displayed and stored through software control.

Electronically measured dead time of the ion counting system must be provided.

31. Ion counter dark noise must be less than 10 cpm at >90 % efficiency. Gain instability must be less than or equal to 0.2 % (RSD)/hour at a counting efficiency of 90 % or higher. Faraday/ion counter gain calibration must be software controllable, able to be preset in unattended mode, and able to be performed as an inter-block action.

32. Non-linearity of the ion counting system must be less than or equal to 0.2 % over a dynamic range of 1*10-16 to 1*10-13 A (dead-time corrected).

33. The ion counting systems must be protected against excessively (> 1 x 10^6 counts per second) large ion beams during normal operation. The ion counters must also be protected from these excessive beam currents when operating in peak jumping mode so that they do not receive a high current from an intermediate mass when jumping between masses. It must be possible to disable an ion counting channel if it appears to be in the way of a large ion beam in a given collector configuration.

Section 5: Vacuum System

34. A multiple-stage differential pumping system must be capable of achieving vacuum of

<10-8 mbar in the analyzer under routine operating conditions (full gas load).

35. A high-capacity pump for the interface region must be supplied for improved sampling of the plasma. Sample ion yields of > than 1 % for U must be achievable with the combined interface pump and MC-ICP-MS.

36. Pressure within the interface, differential pumping chambers and flight tube must be continuously monitored by digital readout and immediately accessible through software.

37. The instrument must have an integrated vacuum management system that protects instrument vacuum from power failures or other accidental ventings.

38. The instrument must be provided with the ability to bake-out the system.

Section 6: Computer System and Control

39. Workstation must operate in latest Windows environment (Windows 10) and use a minimum of an i7 based processor or equivalent and a minimum of 16 Gigabyte (GB)

RAM. The computer must be equipped with one flat panel color monitor and a laser printer.

40. The computer system must include all necessary hardware (e.g., RAM, hard drive, video cards, DVD-RW) and software to control the instrument, monitor all adjustable mechanical and electronic parameters, and capture and process data. A “full install” CD and/or memory stick for the operating system must be provided.

41. Software must be capable of real time monitoring and control of all adjustable mechanical, vacuum and electronic parameters including gas flows, torch positions, valve positions, vacuum readings, beam focusing, collector positions, magnetic field parameters, zoom lens settings and other relevant parameters.

42. The software system supplied with the instrument must be supported for a minimum period of five years from date of delivery. If the operating system is changed or upgraded within five years, the supplier will provide, at no additional cost, all software and hardware necessary to accommodate an upgrade to a new operating system.

43. The instrument software will be provided on CD and/or other convenient media (e.g., memory stick) so that software can be reloaded in the event of computer malfunction or accidental corruption of software.

44. Two (2) site licenses (dongles) must be provided to permit offline data processing and access for the purpose of processing data from a remote location, required only if one installation is allowed per license.

45. Data file formats must be compatible with industry standards to allow the use of common spreadsheet (e.g., MS EXCEL), database and word processor applications.

46. Data export must include all relevant data and machine parameters to permit full offline processing of the data. This includes but is not limited to output voltages from Faraday cups, output counts from ion counter in cps and converted to voltages, baseline values for all collectors used, gain values, cup efficiency values, dead-time value, gain correction value, interfering isotope corrections, normalizing values and model.

47. The instrument software must be capable of providing data export of selected isotopic ratios (corrected, normalized); outlier identification at block level; and percent standard deviation (% SD) of individual blocks, and include a run summary consisting of the average of individual blocks, % SD with outlier discrimination, and percent standard error (% SE).

48. On-line data processing software must allow mass bias corrections with various fractionation “laws” (power, exponential, user-defined), and provide for flexible corrections of interfering isobaric species.

49. An index of functions and protocols used by the software to treat the raw data must be provided. All relevant algorithms or full and complete reference to published methodologies must be provided. This shall include baseline corrections; dead-time corrections; fractionation correction models; gain corrections; yield corrections, interfering isotope corrections; data outlier discrimination models; peak centering routine and mass calibration.

50. The computer software supplied with the instrument must be able to evaluate electronic components and instrument functions (pumps, valves, etc.) and show the results through a user accessible computer software diagnostics page for user evaluation and testing.

51. Instrument software must be able to interface with currently available laser ablation, membrane desolvation, and autosampler systems.

52. The software and data processing algorithms must include procedures for time-resolved isotopic analyses (e.g., using laser ablation, chromatographic separation systems and other sources of transient signals).

53. System must be capable of interfacing with an auto-sampler and membrane desolvator, as specified in Line Item 5 and 6.

Section 7: Operating Environment

54. NIST requires that the Thermo Scientific NEOMA™ Multicollector ICPMS instrument be supplied ready for use and be compatible with United States standard electrical power. If transformers are required for operation with U.S. standard electrical power, such transformers and line conditioners shall be included with the instrument.

Section 8: Documentation

55. Documentation and manuals shall be provided describing all aspects of operations, data reduction methods, data calculations, maintenance, and troubleshooting of every sub-system of which the instrument is comprised. Software refers to all instrument control, host computer to instrument computer/controller interface, and data acquisition, reduction, and display functions. One electronic (pdf) and one paper (hardcopy) version of all manuals shall be provided.

Section 9: Consumables

56. The contractor shall provide a one-year supply of consumables and expendables including, at a minimum, set of skimmer and sample cones, pump tubing, torch and torch injector and associated o-rings, shields for Pt guard electrodes, and additional slits.

INITIAL WARRANTY

The contractor shall warrant the entire system for a period of at least one year. The warranty must include unlimited telephone/e-mail support for questions regarding operation. All costs including parts, shipping, labor, travel, and other expenses necessary to replace or repair the system will be borne solely by the contractor at no additional cost to the U.S. Government. The warranty must cover all defects in materials and workmanship for a period of one year from the date of final acceptance by the Government. This includes specifically covering any deficiencies in the Faraday collectors. Any variation in efficiencies amongst Faraday collectors must be less than 50 ppm over the first year of normal operation. Faraday collectors with efficiencies that deviate beyond this range must be replaced by the Contractor at no cost to NIST.

EXTENDED WARRANTY (OPTION YEAR 1 through OPTION YEAR 3)

The Contractor shall provide options to extend the initial one (1) year warranty, for up to an additional three (3) years, to cover all equipment and labor. Option years to be exercised at the

Government’s discretion, in one-year increments. The extended warranty shall include the following:

• On-site preventive maintenance visit per year.

• System testing against performance metrics, as needed, and optimization.

• Unlimited telephone support and free software upgrade to most recent version for configured system.

• On-site field service (commencing after the one-year warranty). Service shall be provided within 5-15 calendar days of the initial telephone call from the end user and shall cover all costs including parts (parts include general parts for the instrument and consumables), shipping, labor, travel, and other expenses necessary to replace or repair the system.

INSTALLATION

The Contractor shall install the instrument in Building 227 at NIST Gaithersburg, MD.

Installation shall include, at a minimum, uncrating/unpacking of all equipment, set-up and hook-up of all equipment, start-up, demonstration of specifications, and removal of all trash. The instrument must meet all required specifications identified below in the ‘Inspection and

Acceptance Criteria’ Section upon completion of installation. Qualified personnel shall install the system and perform all activities necessary to ensure the system is fully functional and meets all required specifications and performance metrics (see Inspection and Acceptance Criteria).

Installation shall be completed withing 20 calendar days after delivery of the instrument and must take place during normal business hours, between 8:30 am and 5:00 pm Eastern Time, Monday through Friday except Federal Holidays, and must be coordinated with the NIST

Contracting Officer’s Representative (COR).

TRAINING

The contractor shall schedule and facilitate installation/set-up and one (1) advanced training session for up to five (5) users at NIST. The training shall provide a thorough demonstration of all equipment functions, maintenance, data administration, and basic troubleshooting. Training shall be provided during normal business hours, between 8:30am and 5:00pm Eastern Time, Monday through Friday, except Federal Holidays, and will be coordinated with the NIST COR to ensure maximum availability of NIST personnel. The training may be completed at NIST immediately after installation/set-up and on-site measurements demonstrating that no damage or misalignment issues arose during transportation and installation (as described below) but shall be completed no later than 30 calendar days after delivery.

PERIOD OF PERFORMANCE

The period of performance for the initial warranty shall begin upon final acceptance of the instrument, by the Government. Additional option years of extended warranty will run consecutively as follows:

Initial Warranty: FY25-FY26

Extended Warranty Option Year 1: FY26-FY27

Extended Warranty Option Year 2: FY27-FY28

Extended Warranty Option Year 3: FY28-FY29

Exact dates will be identified at the time of award.

DELIVERY

Delivery shall F.O.B Destination and shall occur within 180 calendar days from award. Delivery shall occur during normal business hours, between 8:30am and 5:00pm Eastern Time, Monday through Friday, except Federal Holidays and be made to:

Chemical Sciences Division

Inorganic Chemical Metrology Group

Building 227 Room B345

100 Bureau Drive

Gaithersburg, MD 20899.

The Contractor shall pack and mark the shipment in conformance with carrier requirements, deliver the shipment in good order and condition to the point of delivery specified in the purchase order, be responsible for loss of and/or damage to the goods occurring before receipt and acceptance of the shipment by the consignee at the delivery point specified in the purchase order; and pay all charges to the specified point of delivery.

DELIVERABLES

Description Quantity Due Date

One Thermo Scientific NEOMA™

Multicollector ICPMS (High-Resolution

Multiple-Collector Inductively Coupled

Plasma Mass Spectrometer (HR-MC-ICP-

MS)) with additional high-resolution and increased detection capability.

One (1) Within 180 calendar days after award of requirement

Autosampler One (1) Within 180 calendar days after award of requirement

Membrane Desolvator One (1) Within 180 calendar days after award of requirement

Water chiller(s) One (1) Within 180 calendar days after award of requirement

Windows Workstation One (1) Within 180 calendar days after award of requirement

Operations and maintenance manual for the Thermo Scientific NEOMA™ Multicollector

ICPMS

One (1) Within 180 calendar days after award of requirement

Power supply compatible with standard US voltage.

One (1) Within 180 calendar days after award of requirement

Power conditioner One (1) Within 180 calendar days after award of requirement

Consumables Kit One (1) Within 180 calendar days after award of requirement

Installation Once Within 20 calendar days after receipt of instrument

Training of NIST personnel at NIST Once Within 30 calendar days after installation

Initial Warranty One (1) year

Commence upon successful installation and meeting specifications

Option Year 1: Extended Warranty One (1) year

Upon exercise of option year.

Option Year 2: Extended Warranty One (1) year

Upon exercise of option year.

Option Year 3: Extended Warranty One (1) year

Upon exercise of option year.

ACCEPTANCE CRITERIA

• Visual-Physical check at NIST laboratory for adherence to design specifications (to be performed by COR and contractor).

• Performance check at NIST will be to demonstrate that no damage or misalignment issues arose during transportation and installation in the laboratory. The tests will be performed as soon as the instrument is installed and ready (to be performed by contractor).

• The following specific acceptance criteria will be evaluated. Criteria must be satisfactorily met prior to acceptance of the system by the COR (to be performed by contractor).

Contractor must meet the following performance specifications by supplying data taken on the instrument being delivered to NIST. The data is intended to be a baseline for instrument performance and, as such, may be taken at the factory during assembly and final test. On-site measurements can therefore be specifically focused on measurements used to test or benchmark that no damage or misalignment issues have arisen due to transportation and installation.

Isotope Ratio Precision:

Contractor must demonstrate the following Pb isotope ratio precisions are achievable using SRM

3328 (formerly SRM 981), n=10 measurements, > 100 ppb, using static mode

a. 204Pb/206Pb < 0.2% RSD, for SRM 3328

b. 207Pb/206Pb < 0.1% RSD, for SRM 3328

c. 208Pb/206Pb < 0.15% RSD, for SRM 3328

Contractor must demonstrate the following Ni isotope ratio precisions are achievable using SRM

986, n=10 measurements, > 500 ppb, using static mode

a. 58Ni/61Ni < 0.1% RSD

b. 62Ni/61Ni < 0.1% RSD

c. 64Ni/61Ni < 0.25% RSD

Contractor must demonstrate the following Li isotope ratio precisions are achievable using natural Li n=10 measurements, > 100 ppb, using static mode

a. 7Li/6Li < 0.1% RSD

Sensitivities:

The following minimum sensitivities must be demonstrated by the Contractor using a standard sample introduction system (fitted with normal cones) with the nebulizer sample uptake rate of

100 µL/min, measured on a Faraday collector with a 1011 Ohm feedback resistor and the system optimized for minimum CeO/Ce ratio. Suitable solutions from the factory are acceptable.

Element Sensitivity (V/ppm) 7Li > 12

56Fe > 8 88Sr > 40 138Ba > 20 142Nd > 40 208Pb > 45 238U > 45

Long Term Isotope Ratio Precision:

Assessment of the long-term isotope ratio precision will be performed by the contractor as a 9-hour run based on introduction of a solution containing 100 ppb Pb and Li, 500 ppb Ni, 100 ppb

Pb and 1 ppm in a 2 % HNO3. Ratios for the following isotopes are measured in static mode for each element.

Stability over 9 hour period: RSD, %

0.1 ppm solution 7Li/6Li <0.4 %

0.5 ppm solution 58Ni/61Ni <0.1 % 62Ni/61Ni <0.1 % 64Ni/61Ni <0.4 %

30 ppb solution 204Pb/206Pb <0.5 % 207Pb/206Pb <0.5 % 208Pb/206Pb <0.5 %

Mass Bias stability:

Assessment of the mass bias stability will be performed by the contractor as a 9-hour run based on introduction of a solution containing 100 ppb Pb (NIST SRM 3328) and Li (NIST RM 8545

LSVEC), 500 ppb Ni (NIST SRM 986) in 2 % HNO3. An integration time of 5 min and detectors and resolution of choice are to be used.

Mass Bias Mean mass bias (%)

7Li/6Li <20

0.5 ppm solution 60Ni/61Ni <5

208Pb/207Pb <1

GENERAL INFORMATION

Safety: The Contractor employee shall be responsible for knowing and complying with all installation safety prevention regulations. Such regulations include, but are not limited to, general safety, fire prevention, and waste disposal.

Security: NIST is a restricted campus. An identification badge is required for access for entry into buildings and also is shown to the Security Police when entering the campus.

Identification Badges: Contractor employees shall comply with NIST identification and access requirements. The Contractor shall provide the name and citizenship information of employees for on-site visits to the NIST COR prior to arrival. The COR will submit the name(s) and citizenship information to the NIST Security officer in order for a given Contractor employee to enter the NIST campus. The Contractor employee is responsible for absences due to expired identification and access documents. Each Contractor employee shall wear a visible identification badge provided by the NIST Security Office. The badge must show the full name, title, and if required by NIST, the words “Contractor” in front. The Contractor employee shall turn in the NIST identification badge and vehicle pass to the COR or Contracting Officer (CO) upon termination of their services under this contract.