The interpretation of colour values obtained by lovibond's tintometer
1910; Wiley; Volume: 29; Issue: 23 Linguagem: Inglês
10.1002/jctb.5000292301
ISSN0368-4075
Autores Tópico(s)Inorganic and Organometallic Chemistry
ResumoTlicsr two oxninplcs niust not be taken ns itldicntitig tlurt tho stnntlnrd glnsscs, supplicd with the tintomoter, .nrc riot truo ns fnr ns tlicir prirnnry colour is concorncd, but siiiiply tlirrt their propert of stopping wliito ligliC Ims k c n ignoteil.~h u s 0.1 of yc~%\v is 0.1 of y o ~~o w , but nlso a b u t 0.3 tf grey.Tlint the gliisscs nim correctly stnudardhd \VRS 8hown by hnvhig the 8u)tid tweiber o/ glaaaca in any two cornliinntions compnrcd, 80 ns to cnnccl out tho moyness.Tliu I ~~v i b o n t l Tintoinot.cr is being niorc nntl niorc uscd its n convenient instruuicnt for tho ii\ciisuronmit rncl recording of colours.Tho theory of tho tintonictcr is that any colour cnii bu inntolied with n suitriblo combinntion of red, yellow trntl bluo stnnderd glnsscs.111 using the Iuvibond Tintonictm 1 found tlint it \vns possible to ninko ghtsacs of clilTcrcnt V J L ~R J l l ~l f X h thc tjnnio colour or match oiiu auotlior, for usaniplc : 3.0 Ited 5.0 Ycllow 1.0 Blue 2.2 Red 4.2 'I'cllow 0.2 13luc In o.sainining it body with this colour, ttvo cs~~criincnturs with Iwrfcct OycHight might correctly record dillcrcnt results.This is n i i obvious objection to tlic use of tltc itistruniolit, irntl tlrcrcforo 1 thought it worth while to find t.ho enuse, iii order.tlutt this Imssibility of obtriinirig incoiieistcnt msults might be eliiniiintcd.the stwdnrd glnsscn nro not porfcotly Lrnnapnrmt to wliitc light ; nnd hcnco n little wliitu liglit is lost for cncli glnss tlint is pnsscd tlirough.Tliis is dint oiiu \voultl nnturnlly cxpcct, for Iwrfectly triinxl)irrcnt bodies fire unknown, Imt 1 IULVO.IIOL sccn it niciitioncd nny\vlicre tlint tlic nniount Of liglit HO lost inust bo considered in rccortliiig tliu colour.r)f n largo number of coiii11nrii~on~ of conilJinntions of glosscs, tliu followin iirc sclcctctl to illustnttu Lliis p i n t .(1) (It w h be ruriioni~~urcd tluit tlia gtnndartl glusscs itrtj intandcd to be t10 erriiiigctl tlinf cquril ntiiouiits of rctl, jvllow tru.d blue givci it noutrirl tint.i\c~uiilly, HilCh coiniinationa do givu greys itlniost free from uolour.)A coni-Ihirtion of 12 glrrsscs : '2, '2, -2, '2 Red '2, '2, '2, * :! YCllO\\.2, -2, 2, .2I3ltto iloos not giro the suuic -6: Rod -8 Blue IiuL gives tlio uinio gtuy (is tho tlircu glessus : 4.0 Itcd , 4.0 Ycllo\r 4.0 13lllO
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