Table 4.
Acidimetric Assay of NIST PS1 Benzoic Acid Result Summary
| benzoic acid mass fraction, g/g | 0.999923 |
| combined standard uncertainty, , g/g | 0.00002 |
| coverage factor, k | 1.97 |
| expanded uncertainty, U, g/g | 0.00004 |
Acidimetric Assay of NIST PS1 Benzoic Acid Result Summary
| benzoic acid mass fraction, g/g | 0.999923 |
| combined standard uncertainty, , g/g | 0.00002 |
| coverage factor, k | 1.97 |
| expanded uncertainty, U, g/g | 0.00004 |