Table 370. 

 TRANSMISSIBILITY OF RADIATION BY GLASSES- 



303 



The following data giving the percentage transmission of radiation of various substances, 

 mostly glasses, are selected from Spectroradiometric Investigation of the Transmission of Vari- 

 ous substances, Coblentz, Emerson and Long, Bui. Bureau Standards, 14, p. 653, 1918. 



Glass or substance, manufacturer. 



Purple fluorite 



Gold film on Crooke's glass. . . 



" " " crown glass 



Molybdenite 



Cr2(S04)3.i8H20 



Chrome alum, 10 g to 100 g H2O 



C0CI2, 10 g to 100 g H2O 



Glasses: 



Copper ruby, flashed 



G24, Corning, red 



Scliott's red, No. 2745 



G34, Corning, orange 



Pyrex, Corning 



Noviol, B, Corning, yellow . . . 

 Novieweld3,Corning,dk:-yellow 



Scliott's 431 1 1, green 



G1710N, green, Cornins: 



G174J, Corning, heat abs'b'^. . 



G124JA, Corning 



Cobalt blue 



Schott's F30S6, blue 



G1013, Corning, blue 



G584, Corning, blue 



G1711Z, Corning, blue 



Amethyst, C, Corning 



G172BVV5, Corning, red-purple 



Crookes' A, A. O. Co 



" sage green 30, A. O. Co 



Lab. 58, A. O. Co 



Fieurzal B, A. O. Co 



^kopos green, J. K. O. Co. . . 



Thick- 

 ness, 

 mm 



4-' 



.007 

 .24 



3-43 

 S-ii 

 2.6 



1-5 



2-43 

 2.58 

 6.36 

 3 -70 

 3-23 



•43 

 .96 

 .98 

 .04 

 .04 

 •58 



50 



Transmission per cents. 



Wave-lengths in /u. 



0.5 1.0 i.s 2.0 2.5 3.0 3.5 40 4.S S-o 



3 

 8 



41 

 83 



73 

 50 



SO 

 60 

 83 

 50 

 90 



75 



I 



4 

 I 

 2 

 o 

 74 



23 

 91 



o 

 92 



o 

 86 

 76 

 91 



64 

 70 



89 

 62 

 90 

 60 



2 

 53 

 23 



4 



I 



43 

 I 



IS 

 24 

 60 



91 



o 



91 

 o 



91 



80 



91 



47 



I 



2 



44 



37 



72 

 72 



89 

 67 



91 



82 

 6 

 79 

 53 

 12 



S 



63 



2 



5° 

 60 



74 

 91 



2 

 90 



4 

 91 

 82 



91 



76 

 6S 

 7S 

 68 



87 

 75 

 13 

 83 

 68 



19 

 10 



79 

 31 

 61 



75 

 78 

 88 

 5 

 83 

 II 



90 



40 



33 

 I 



10 

 3 



13 

 4 

 7 

 9 

 9 

 4 

 5 



27 



5 



I 

 20 



13 



20 



8 



23 

 8 



35 

 20 



52 



60 

 o 

 o 



48 



36 



62 

 o 

 o 



48 



o 



Manufacturers: Corning Glass Works, Corning, N. Y.; A. O. Co., American Optical Co., 

 Southbridge, Mass.; J. K. 0. Co., Julius King Optical Co., New York City. For other glasses 

 see original reference. See also succeeding table, which contains data for many of the same 

 glasses. 



Smithsonian Tables. 



