THE RUDOLF REPORT

GERMAR RUDOLF · THE RUDOLF REPORTwould mean that the chamber was used around the clock, i.e., more orless 24 hours a day, seven days a week, which must be viewed as theextreme upper value.2. Homicidal ‘gas chamber.’ Here as well, our calculation assumesa constant concentration of 10 g/m³. I have selected two different gassingtimes here: 1/20 day (72 min) and 1/100 of a day (14.4 min). Thefirst value corresponds to the average constant exposure time of ‘gaschamber’ walls to HCN if assuming no Zyklon B introduction columnsand a fairly good ventilation after the gassing (see 5 th column in Table11), the second value corresponds to the same scenario, but this timewith Zyklon B columns and a close to perfect ventilation after the gassing(see 5 th column in Table 12).In former editions of this expert report, I have used the equationsdetermined in chapter 6.7.4. to calculate the relative saturation of masonrycyclically exposed to hydrogen cyanide. However, after usingseveral approaches on exactly how to do it, which lead to sometimesquite different results, 482 I decided to refer to this equation only in orderto establish the time it takes for masonry to reach its maximumsaturation or a quasi-constant concentration (20 days and 20 daily cycles,respectively). In this edition, the quasi-stationary concentration inmasonry were calculated iteratively using Fick’s law of diffusion. 483One wall model used was considered to be insulated at one endthat corresponds to the situation as given in morgues 1 of crematoria IIand III, which were built of two layers of brick wall with a insulatinglayer of tar in between. 484 The other wall model had no such insulation,i.e., it lost HCN on its ‘outside,’ leading to an average concentrationwithin the entire wall which is roughly half as high as in the insulatedcase. This was the situation as it was given in the Zyklon B disinfestationrooms of BW 5a and BW 5b.Table 13 shows the results of these calculations. Whereas the avscenariois unrealistic for our purposes, because our scenario requires homicidal gassings; seealso chapter 7.3.1.3.482 The equations determined in chapter 6.7.4. consist of two terms, which can be handled individuallyor both together, and it is not at all clear, which time value is to be used when switchingover from gassing to airing, which all influences the result.483 I am not going to explain basic statistical laws of diffusion here. This law is so commonlyknown that anybody interested in it might look it up in any physics book. Maybe the iterativesteps I used where a bit too big, so there is an error margin in my calculations, but if so, it affectsall series, so it should not make a difference regarding my comparisons.484 See chapter 5.4.1.1. and footnote 183. Though tar is not gas-tight, it still prevents most of thewater and HCN to penetrate it.228