NIST Pre-Filled Vials
SI-traceable NIST certification in standard configurations for Diffusion and Relaxometry
Pre-filled vials to accompany the MultiSample series of phantoms. Vials are filled from batches of phantom materials where the National Institute of Standards and Technology (NIST) in the USA has characterised their MR properties over a range of temperatures, and these values and their corresponding uncertainties provided as a report that accompanies the vials.
Key Features
Certification Details
SI-Traceable NIST Certification
All solutions characterised by the National Institute of Standards and Technology (NIST) in the USA
Learn more about NIST traceability in MRI24-Month Certification Validity
All materials contain a highly effective, non-toxic, broad-spectrum preservative
Detailed Reports Included
MR property values and corresponding uncertainties provided for each batch
Relaxometry Solutions
12 aqueous solutions of manganese chloride with characterised T1 and T2 relaxation times at 1.5T and 3.0T
NIST Reference: NIST SP 250-97
Diffusion Solutions
10 aqueous solutions of PVP K-30 with characterised diffusivity at multiple temperatures from 0°C to 37°C
NIST Reference: NIST SP 250-100
Relaxometry Solutions
For MR relaxometry purposes we offer the following aqueous solutions of manganese chloride:
| Order Code | Concentration (mM) | T1 at 1.5T (ms) | T2 at 1.5T (ms) | T1 at 3.0T (ms) | T2 at 3.0T (ms) |
|---|---|---|---|---|---|
| MNCL-0017 | 0.017 | 2279 | 767 | 2327 | 492 |
| MNCL-0027 | 0.027 | 1995 | 488 | 2013 | 328 |
| MNCL-0039 | 0.039 | 1705 | 342 | 1756 | 235 |
| MNCL-0055 | 0.055 | 1429 | 237 | 1505 | 170 |
| MNCL-0078 | 0.078 | 1179 | 172 | 1251 | 123 |
| MNCL-0110 | 0.110 | 973 | 131 | 994 | 90 |
| MNCL-0159 | 0.159 | 707 | 86 | 758 | 60 |
| MNCL-0195 | 0.194 | 593 | 70 | 649 | 50 |
| MNCL-0245 | 0.245 | 492 | 56 | 544 | 40 |
| MNCL-0320 | 0.320 | 390 | 42 | 435 | 30 |
| MNCL-0480 | 0.480 | 260 | 27 | 306 | 20 |
| MNCL-0630 | 0.630 | 191 | 19 | 236 | 15 |
T1 and T2 relaxation times are estimated based on NIST reference measurements. The actual relaxation times will vary on a batch to batch basis, however these will be provided based on NIST's SI traceable characterisation (NIST SP 250-97).
Diffusion Solutions
For isotropic diffusion, we provide aqueous solutions of polyvinylpyrrolidone (PVP) K-30, doped with Nickel Chloride so that T1's and T2's are not excessively long. Each batch has their Diffusivity, T1 and T2 SI traceably characterised by NIST (NIST SP 250-100) at temperatures of 0, 16, 18, 20, 22, 24, 26, and 37 °C, and a field strength of 3.0 T.
| Order Code | PVP Concentration (% by weight) | Nickel Chloride | Diffusivity at 0°C (10⁻³ mm²/s) | Diffusivity at 20°C (10⁻³ mm²/s) |
|---|---|---|---|---|
| PVP-0000 | 0.0 | 1.0 mM | 1.1 | 2.02 |
| PVP-0025 | 2.5 | 0.96 mM | 1.03 | 1.91 |
| PVP-0050 | 5.0 | 0.92 mM | 0.98 | 1.82 |
| PVP-0100 | 10.0 | 0.83 mM | 0.83 | 1.59 |
| PVP-0150 | 15.0 | 0.74 mM | 0.73 | 1.37 |
| PVP-0200 | 20.0 | 0.64 mM | 0.58 | 1.18 |
| PVP-0250 | 25.0 | 0.55 mM | 0.48 | 1 |
| PVP-0300 | 30.0 | 0.45 mM | 0.38 | 0.84 |
| PVP-0400 | 40.0 | 0.23 mM | 0.23 | 0.54 |
| PVP-0500 | 50.0 | 0.0 mM | 0.12 | 0.32 |
Values listed are based on a batch of manufactured solutions. Future batches may vary.
Specifications
Certification Validity
Valid for 24 months from date of manufacture
Preservative
All materials contain a highly effective, non-toxic, broad-spectrum preservative
NIST References
- Relaxometry
- NIST SP 250-97
- Diffusion
- NIST SP 250-100
Customisation
Other materials available on request