Document wKkDY2G65ngXDvD50LEZ1VO9o

/for lafer*'fcwo of P^rta O/flee. o I m. Sonio? X&specter f Kira, Kinee Dcpfirtflottt, v.a. fSUft jy. . .* ' j. _ - .... '" i 5th Aa-uyfc 19&. ear Sir. Vs bare Co band a lottar ftps toot Aeslettftt Inspector, Kr.Sietteede, together vttb a copy of the reealta obtained Own a carver carried eet in IM nine frea 24ti to 2*tb Jono, I960. tej out firstly oUto that * ere net et all satisfied ' \dib the results of the mrvoy beowiso of tbs aarelisbUity *f tbe gr flow hitsr liieh was need end vn da oat agree vtth asm of the waafc* la the letter eod tbo report. 1b tb* Uttar, Kr.ainaonde BSBtiensd *ftg2Sclla iinflow" referring to' ersns t&aro he eoaeldered th.it the natural air amenta eiruvt eetiofeetoKly ventilate. Iba vena referred to ere eat : ventilated by natural air corrcnte bet by the forced vestilatioa lnhiead by tM */ta fan.* r*d %*vo teotirQ the flow is tben arose Kr.Sidb did oat hive tbe\ft* enter with bis. Ae results attain* bstb IB , oust counts ned testators ere equal to and better in oast eiete with ` resuits obtained by year Joo/aeWro for eeoparoeble jdeees tefcen at ' 1 fpprsriBAtely the * lieso eC tha jroar in 1997 a* 1991. We *tait ! tbit tho uca of brattices or lodtrideal fans for oeoh place wild greetly I lairer* the ventilation an uh plecee* feat vs f* that this la * tspraevichble vith ear type of noning, which w thisfe to asd^ne in the > State. Of the W> pUces with MO and 0 duet eeanta this ana baa already bees fitted with a ton uatil a break thread* S1> ptnpt be ,Jms a*4e%be'(h>ad Boon Poeder e5H"b cAtseded lo ifiaedlataly. Tbo Air flow cater seed >7 year assistant farweter to* reading 2S belav ear l&iirocoflt tftleh is the ertso type bet a new iaotjeacotj nl 7ur laatnraeftt would act read on low velocitiess nad the | offer ef our lastruaest vns refused by llr.S'aa&ada ov ha haev thnt hie irotruaoet uru> net reeding eorroctly. On tbs bettoa of Kr.Sianends report he aafleins the difference betueeas intobe nnd oxheuot by etatins tbet there wee b UEberelttest flaw fma the hwet fen. 'Thin U msQy as we hare veltaje controls on onr oltomatoee and uo wjuld vantaro to ea that if yeur Raciatsnt Inapoeter ebtnlBcd 0 rcadlRfi Indieatine sa iaterslttsnt flew it vae due to hie instrument or hie netbod. WV-004144