Acidity of Arterial Blood: Conversion of pH Units to Hydrogen Ion Concentration (nmol/L)
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 7.0 | 100 | 98 | 95 | 93 | 91 | 89 | 87 | 85 | 83 | 81 |
| 7.1 | 79 | 78 | 76 | 74 | 72 | 71 | 69 | 68 | 66 | 65 |
| 7.2 | 63 | 62 | 60 | 59 | 58 | 56 | 55 | 54 | 52 | 51 |
| 7.3 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 |
| 7.4 | 40 | 39 | 38 | 37 | 36 | 35 | 35 | 34 | 33 | 32 |
| 7.5 | 31 | 31 | 30 | 30 | 29 | 28 | 28 | 27 | 26 | 26 |
| 7.6 | 25 | 25 | 24 | 23 | 23 | 22 | 22 | 21 | 21 | 20 |
Source: Fiorica V (1968) A table for converting pH to hydrogen ion concentration over the range 5–9. Available online at: http://www.faa.gov/data_research/research/med_humanfacs/oamtechreports/1960s/media/am68-23.pdf.