H-minus-ion websiteExamples of RH Scores (aka RH2 Scores) Calculated from Various ORP & pH Values Some examples of relative hydrogen score (aka rH score or rH2 score) calculated from various sample values of ORP and pH, using the rather universally-accepted formula: rH = ((ORP + 200) / 30) + (2 * pH) which is presented on the page on this site at: http://h-minus-ion.vpinf.com/rH-score-1.html which is entitled: The Relative Hydrogen Score, aka the rH Score (aka rH2 Score) Notes on rH scale: The rH scale runs from 0 to 42; 28 is mid-point (balance), below 28 is reducing, above 28 oxidizing.   An rH of 42 indicates 1 atmosphere (1 ATM) of partial pressure of O and a –42 exponent partial pressure of H, while an rH of zero (0) indicates 1 ATM partial pressure of H (adjusted for skewing effects of the H+ [aka “acid”] ion) and a –42 exponent partial pressure of O.  Therefore, an rH score of 0 would indicate maximum possible reducing (antioxidant) power, while a score of 42 would indicate the maximum possible oxidizing environment. So, rH yields a hydrogen proton-unbiased measure of absolute reducing potential of a substance; eliminating effects due to pH.  rH is log1/hydrogen parital pressure; a one unit change in rH indicates a 10X change. E.g., a shift on the Barr scale of rH from a score of 27 to one of 26 indicates a 10X increase in reducing power.  rH 28 = H partial pressure (pp) of 10^-28 atmospheres, an rH 11 = H pp is 10^-11 atmospheres, and a 0 rH is the rH value of pure hydrogen at STP.  Again, as noted above, an rH score of 0 would indicate maximum possible reducing (aka “antioxidant”) power, while a score of 42 would indicate the maximum possible oxidizing environment.

 v. Sample rH (Relative Hydrogen) Scores 3.1 # Description of test pH ORP rH 0 WTW Standard rH 28 test solution: pH 7, ORP 427 7 427 34.9 1 TEST VALUES, ORP OF +500 mv. 10.0 500 43.3 2 TEST VALUES, ORP OF +500 mv. 8.0 500 39.3 3 TEST VALUES, ORP OF +500 mv. 7.0 500 37.3 4 TEST VALUES, ORP OF +500 mv. 6.0 500 35.3 5 TEST VALUES, ORP OF +500 mv. 4.0 500 31.3 6 TEST VALUES, ORP OF +500 mv. 3.0 500 29.3 7 TEST VALUES, ORP OF +200 mv. 10.0 200 33.3 8 TEST VALUES, ORP OF +200 mv. 8.0 200 29.3 9 TEST VALUES, ORP OF +200 mv. 7.0 200 27.3 10 TEST VALUES, ORP OF +200 mv. 6.0 200 25.3 11 TEST VALUES, ORP OF +200 mv. 4.0 200 21.3 12 TEST VALUES, ORP OF +200 mv. 3.0 200 19.3 13 TEST VALUES, ORP OF -200 mv. 10.0 -200 20.0 14 TEST VALUES, ORP OF -200 mv. 8.0 -200 16.0 15 TEST VALUES, ORP OF -200 mv. 7.0 -200 14.0 16 TEST VALUES, ORP OF -200 mv. 6.0 -200 12.0 17 TEST VALUES, ORP OF -200 mv. 4.0 -200 8.0 18 TEST VALUES, ORP OF -200 mv. 3.0 -200 6.0 19 TEST VALUES, ORP OF -400 mv. 10.0 -400 13.3 20 TEST VALUES, ORP OF -400 mv. 8.0 -400 9.3 21 TEST VALUES, ORP OF -400 mv. 7.0 -400 7.3 22 TEST VALUES, ORP OF -400 mv. 6.0 -400 5.3 23 TEST VALUES, ORP OF -400 mv. 4.0 -400 1.3 24 TEST VALUES, ORP OF -400 mv. 3.4 -400 0.1 25 TEST VALUES, ORP OF -820 mv. 12.5 -820 4.3 26 TEST VALUES, ORP OF -820 mv. 11.0 -820 1.3 27 TEST VALUES, ORP OF -820 mv. 9.0 -820 -2.7 28 TEST VALUES, ORP OF -820 mv. 7.0 -820 -6.7 29 Electrolyzed Reduced Water (ERW), strong 12.0 -823 3.2 30 Electrolyzed Reduced Water (ERW), medium 9.8 -240 18.3 31 Electrolyzed Reduced Water (ERW), weak 9.0 -175 18.8 32 Reduced water from Mg Magic Jugs 5.9 -456 3.3 33 Activated EM, b.5M, at 22 hours at 94 degrees F 4.3 -340 3.9 34 Activated EM, b.5M, at 28 hours at 94 degrees F 4.2 -448 0.1 35 Activated EM, b.5M, at 31 hours at 94 degrees F 4.0 -340 3.3 36 Activated EM, b.5M, at 5 days at 94 degrees F 3.9 15 15.0 37 Activated EM, b.5M, at 14 days at 94 degrees F 3.4 20 14.1 38 Activated EM, b.6, at 31 hours at 96 degrees F 5.0 -501 -0.1 39 SAEM-high concentration/ratio 3.6 -322 3.1

Notes:

where ORP or Eh or Eo or E = ORP in millivolts, 1.23 refers to potential of oxygen under 1 atm pressure, rH is defined as the negative logarithm of the oxygen pressure Po, or:
rH = -log Po

rH yields a hydrogen proton-unbiased measure of absolute reducing potential of a substance; eliminating effects due to pH.

rH is log1/hydrogen pressure; a 1 unit change in rH = 10X change. E.g., a shift from 27 to 26 = 10X increase in reducing power.

rH scale runs from 0 to 42; 28 is mid-point (balance), below 28 is reducing, above 28 oxidizing; rH 42 indicates 1 ATM O; rH 0 = 1 ATM H.

In plain English, an rH score of 0 would indicate maximum possible reducing (antioxidant) power, while a score of 42 would indicate the maximum possible oxidizing environment; a score of 28 is mid-point.

rH 28 = H partial pressure (pp) of 10^-28 atmospheres; an rH 11 = H pp is 10^-11 atmospheres. 0 rH is rH value of pure H2 at STP.