Abstract
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Parry Moon
J. Opt. Soc. Am. 31(12) 723-729 (1941)
Parry Moon
J. Opt. Soc. Am. 32(4) 238-242 (1942)
J. L. Saunderson
J. Opt. Soc. Am. 32(12) 727-736 (1942)
Parry Moon
Parry Moon
Massachusetts Institute of Technology, Cambridge, Massachusetts
No abstract available.
Full Article | PDF ArticleParry Moon
J. Opt. Soc. Am. 31(12) 723-729 (1941)
Parry Moon
J. Opt. Soc. Am. 32(4) 238-242 (1942)
J. L. Saunderson
J. Opt. Soc. Am. 32(12) 727-736 (1942)
Faber Birren
J. Opt. Soc. Am. 32(7) 400_2-401 (1942)
Milton E. Bond and Dorothy Nickerson
J. Opt. Soc. Am. 32(12) 709-719 (1942)
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No. | Name | Mfgr. | Approx. color | A | C | ||||
---|---|---|---|---|---|---|---|---|---|
x | y | ρ | x | y | ρ | ||||
Wood desk tops | |||||||||
520 | Color 47 | 37 | Brown | 0.5331 | 0.4136 | 0.192 | 0.4257 | 0.3818 | 0.171 |
521 | Color 42 | 37 | Brown | 0.5280 | 0.4100 | 0.140 | 0.4128 | 0.3732 | 0.126 |
522 | Maple. L-48 finish | 33 | Brown | 0.5267 | 0.4053 | 0.120 | 0.4084 | 0.3681 | 0.109 |
523 | Birch plywood, L-48 finish | 33 | Brown | 0.5255 | 0.4050 | 0.106 | 0.4051 | 0.3654 | 0.0958 |
Linoleum desk tops | |||||||||
524 | No. 1707 gray | 39 | Dk. gray | 0.4509 | 0.4103 | 0.0952 | 0.3141 | 0.3235 | 0.0952 |
523 | Brown No. 20SB | 1. 38 | Brown | 0.5171 | 0.4016 | 0.125 | 0.3898 | 0.3561 | 0.117 |
526 | Std. brown | 40 | Brown | 0.5241 | 0.4061 | 0.117 | 0.4029 | 0.3623 | 0.106 |
527 | No. 1701 brown | 39 | Brown | 0.5209 | 0.4001 | 0.100 | 0.3960 | 0.3528 | 0.0912 |
528 | Green No. 022SB | 1. 38 | Dk. green | 0.4378 | 0.4244 | 0.0535 | 0.2991 | 0.3266 | 0.0550 |
529 | No. 1705 green | 39 | Dk. green | 0.4435 | 0.4124 | 0.0503 | 0.3086 | 0.3225 | 0.0505 |
Enameled steel | |||||||||
530 | No. 640 | 34 | Gray | 0.4536 | 0.4139 | 0.221 | 0.3150 | 0.3248 | 0.221 |
531 | No. 4362 gray | 38 | Gray | 0.4502 | 0.4122 | 0.218 | 0.3122 | 0.3219 | 0.218 |
532 | Seal gray | 36 | Gray | 0.4465 | 0.4110 | 0.217 | 0.3104 | 0.3224 | 0.219 |
533 | No. 650 | 34 | Gray | 0.4595 | 0.4151 | 0.145 | 0.3157 | 0.3239 | 0.145 |
534 | No. 5 | 34 | Brown | 0.4916 | 0.4227 | 0.141 | 0.3685 | 0.3679 | 0.134 |
535 | Metropolitan 2 | 34 | Brown | 0.5206 | 0.4152 | 0.138 | 0.4020 | 0.3753 | 0.126 |
536 | No. 517 brown | 38 | Dk. brown | 0.4884 | 0.4128 | 0.0862 | 0.3560 | 0.3457 | 0.0822 |
537 | Desk | 37 | Dk. brown | 0.4360 | 0.4096 | 0.0805 | 0.3491 | 0.3365 | 0.0771 |
538 | No. 101 walnut | 40 | Dk. brown | 0.5083 | 0.4093 | 0.0866 | 0.3764 | 0.3510 | 0.0805 |
539 | No. 102 walnut | 39 | Dk. brown | 0.5053 | 0.4100 | 0.0861 | 0.3747 | 0.3507 | 0.0801 |
540 | Walnut | 38 | Dk. brown | 0.5098 | 0.4086 | 0.0784 | 0.3840 | 0.3560 | 0.0724 |
541 | No. 5 walnut | 36 | Dk. brown | 0.5033 | 0.4011 | 0.0779 | 0.3701 | 0.3424 | 0.0735 |
542 | No. 110 mahogany | 40 | Dk. red | 0.5072 | 0.4018 | 0.0688 | 0.3704 | 0.3364 | 0.0638 |
543 | No. 93 mahogany | 39 | Dk. red | 0.5010 | 0.3974 | 0.0604 | 0.3565 | 0.3252 | 0.0566 |
544 | No. 5 mahogany | 36 | Dk. red | 0.4929 | 0.3925 | 0.0584 | 0.3499 | 0.3210 | 0.0556 |
545 | Mahogany | 38 | Dk. red | 0.4983 | 0.3953 | 0.0577 | 0.3523 | 0.3218 | 0.0541 |
546 | No. 55 blucgreen | 39 | Dk. green | 0.4347 | 0.4113 | 0.103 | 0.2994 | 0.3160 | 0.105 |
547 | No. 3 green | 36 | Dk. green | 0.4592 | 0.4319 | 0.0977 | 0.3366 | 0.3611 | 0.0960 |
548 | Olive F | 34 | Dk. green | 0.4892 | 0.4204 | 0.0871 | 0.3601 | 0.3567 | 0.0832 |
549 | No. 112 O. G. | 40 | Dk. green | 0.4724 | 0.4306 | 0.0824 | 0.3408 | 0.3583 | 0.0809 |
550 | No. 46 green | 39 | Dk. green | 0.4716 | 0.4279 | 0.0783 | 0.3419 | 0.3569 | 0.0766 |
551 | Olive green | 38 | Dk. green | 0.4656 | 0.4208 | 0.0615 | 0.3310 | 0.3416 | 0.0605 |
Upholstery materials, cloth | |||||||||
552 | Arabesque, wheat 8784 | 35 | Brown | 0.5211 | 0.4070 | 0.158 | 0.4000 | 0.3759 | 0.145 |
553 | Earl, medallion gold 1559 | 35 | Tan | 0.5434 | 0.4057 | 0.105 | 0.4371 | 0.3977 | 0.0935 |
554 | Mosaic, bagdad rose 25 | 35 | Red | 0.5425 | 0.3603 | 0.0794 | 0.3937 | 0.2940 | 0.0686 |
555 | Corinth, rose 6731 | 35 | Red | 0.5529 | 0.3614 | 0.0781 | 0.4095 | 0.3044 | 0.0662 |
356 | Crochette, copper rust 8984 | 35 | Red | 0.5813 | 0.3638 | 0.0769 | 0.4636 | 0.3351 | 0.0632 |
557 | Danbury, desert beige 367 | 35 | Dk. pink | 0.5116 | 0.3942 | 0.118 | 0.3749 | 0.3406 | 0.109 |
558 | Empress, turquoise 40 | 35 | Green | 0.3810 | 0.4269 | 0.0878 | 0.2589 | 0.3204 | 00968 |
559 | Cortona, turquoise 221 | 35 | Green | 0.3805 | 0.4303 | 0.0771 | 0.2597 | 0.3251 | 0.0851 |
560 | Breton, ferngreen 248 | 35 | Green | 0.4510 | 0.4403 | 0.0760 | 0.3269 | 0.3892 | 0.0775 |
561 | Gros Point, acadia blue 333 | 35 | Blue | 0.4094 | 0.4055 | 0.0755 | 0.2724 | 0.3020 | 0.0802 |
562 | Moresque, twilight blue 55 | 35 | Blue | 0.3652 | 0.3620 | 0.0401 | 0.2311 | 0.2310 | 0.0445 |
563 | Molano. blue 9273 | 35 | Dk. blue | 0.3732 | 0.3832 | 0.0179 | 0.2368 | 0.2676 | 0.0200 |
564 | Serenade, royal blue 9708 | 35 | Dk. blue | 0.3005 | 0.2872 | 0.0149 | 0.1908 | 0.1577 | 0.0183 |
Upholstery materials, artificial leather | |||||||||
565 | Moleather 1001 | 2 | White | 0.4525 | 0.4100 | 0.880 | 0.3160 | 0.3236 | 0.875 |
566 | Alhambra, while 64 | 35 | White | 0.4514 | 0.4102 | 0.786 | 0.3148 | 0.3240 | 0.788 |
567 | Moleather 1029 | 2 | Ivory | 0.4661 | 0.4165 | 0.775 | 0.3341 | 0.3425 | 0.760 |
568 | Canfield. ivory 7500 | 35 | Ivory | 0.4710 | 0.4189 | 0.727 | 0.3417 | 0.3500 | 0.711 |
569 | Grenadier, old white 6817 | 35 | Lt. gray | 0.4630 | 0.4117 | 0.575 | 0.3281 | 0.3322 | 0.567 |
570 | Alhambra, dove gray 6811 | 35 | Gray | 0.4512 | 0.4056 | 0.271 | 0.3126 | 0.3160 | 0.270 |
571 | Alhambra, sand 5020 | 35 | Tan | 0.4868 | 0.4146 | 0.486 | 0.3584 | 0.3536 | 0.464 |
572 | Moleather 1019 | 2 | Buff | 0.4843 | 0.4205 | 0.463 | 0.3590 | 0.3631 | 0.445 |
573 | Fabrikoid No. 1107F | 11 | Tan | 0.5140 | 0.4159 | 0.440 | 0.4148 | 0.3658 | 0.404 |
574 | Alhambra, moka beige 7089 | 35 | Lt. brown | 0.5235 | 0.4176 | 0.324 | 0.4167 | 0.3903 | 0.295 |
575 | Canfield, beige 5943 | 35 | Tan | 0.4902 | 0.4129 | 0.311 | 0.3616 | 0.3539 | 0.296 |
576 | Canfield, ember red 7069 | 35 | Red | 0.6130 | 0.3460 | 0.215 | 0.5104 | 0.3212 | 0.163 |
577 | Fabrikoid No. 2021 | 11 | Brown | 0.5252 | 0.4108 | 0.152 | 0.4143 | 0.3753 | 0.137 |
578 | Canfield, harness tan 6810 | 35 | Brown | 0.5411 | 0.3995 | 0.150 | 0.4288 | 0.3684 | 0.133 |
579 | Grenadier, hotly red 5555 | 35 | Red | 0.6065 | 0.3454 | 0.130 | 0.4895 | 0.3194 | 0.101 |
580 | Alhambra, rust 5116 | 35 | Brown | 0.5652 | 0.3708 | 0.116 | 0.4380 | 0.3353 | 0.0988 |
581 | Canfield, autumn brown 82 | 35 | Brown | 0.5210 | 0.3997 | 0.111 | 0.3954 | 0.3524 | 0.101 |
582 | Fabrikoid No. 5025 | 11 | Dk. red | 0.5866 | 0.3514 | 0.0903 | 0.4567 | 0.3134 | 0.0720 |
583 | Moleather 1015 | 2 | Dk. brown | 0.4964 | 0.4070 | 0.0733 | 0.3663 | 0.3453 | 0.0696 |
584 | Alhambra, apricot 7051 | 35 | Pink | 0.5147 | 0.3996 | 0.453 | 0.3844 | 0.3465 | 0.413 |
585 | Canfield. jonquil 7248 | 35 | Lt. yellow | 0.4913 | 0.4386 | 0.757 | 0.3815 | 0.4035 | 0.725 |
586 | Canfield. canary 3223 | 35 | Yellow | 0.5180 | 0.4459 | 0.728 | 0.4350 | 0.4489 | 0.674 |
587 | Canfield, orange 5113 | 35 | Orange | 0.6071 | 0.3656 | 0.241 | 0.5236 | 0.3635 | 0.188 |
588 | Moleathcr 1020 | 2 | Orange | 0.5960 | 0.3734 | 0.231 | 0.5113 | 0.3640 | 0.183 |
589 | Alhambra. burnt orange 7539 | 35 | Orange | 0.5773 | 0.3724 | 0.210 | 0.4781 | 0.3270 | 0.159 |
590 | Grenadier. aztee rust 6805 | 33 | Dk. orange | 0.5852 | 0.3749 | 0.171 | 0.4886 | 0.3566 | 0.138 |
591 | Canfield. chartreuse 6010 | 35 | Y. green | 0.4690 | 0.4640 | 0.433 | 0.3681 | 0.4360 | 0.429 |
592 | Grenadier, palmgreen 7563 | 35 | Y. green | 0.4429 | 0.4447 | 0.222 | 0.3241 | 0.3753 | 0.226 |
593 | Canfield, sage green 7545 | 35 | Green | 0.3999 | 0.4372 | 0.200 | 0.2781 | 0.3405 | 0.214 |
594 | Alhambra, aqua 4900 | 35 | Green | 0.3738 | 0.4463 | 0.182 | 0.2589 | 0.3444 | 0.201 |
595 | Grenadier, tropic green 6808 | 35 | Green | 0.3873 | 0.4597 | 0.156 | 0.2729 | 0.3784 | 0.171 |
596 | Moleather 1010 | 2 | Dk. green | 0.4145 | 0.4351 | 0.0653 | 0.2908 | 0.3439 | 0.0678 |
597 | Canfield, rose mauve 7047 | 35 | Orchid | 0.5181 | 0.3839 | 0.225 | 0.3775 | 0.3167 | 0.202 |
598 | Alhambra, thistle blue 7541 | 35 | Blue | 0.3344 | 0.3552 | 0.156 | 0.2170 | 0.2179 | 0.180 |
599 | Grenadier, grapetone 7046 | 35 | Purple | 0.5170 | 0.3730 | 0.147 | 0.3656 | 0.2932 | 0.132 |
600 | Grenadier, capri blue 7542 | 35 | Blue | 0.3281 | 0.3142 | 0.100 | 0.2070 | 0.1811 | 0.116 |
601 | Moleather 1011 | 2 | Dk. blue | 0.3964 | 0.3803 | 0.0622 | 0.2585 | 0.2597 | 0.0666 |
602 | Grenadier, midnight blue 5033 | 35 | Dk. blue | 0.3926 | 0.3734 | 0.0510 | 0.2537 | 0.2527 | 0.0549 |
No. | Name |
---|---|
33 | American Seating Co. |
34 | Art Metal Construction Co. |
35 | L. C. Chase and Co. |
36 | Globe-Wernicke Co. |
37 | Heywood-Wakefield Co. |
38 | Metal Office Furniture Co. |
39 | Security Steel Equipment Corp. |
40 | Shaw-Walker Co. |
No. | Material | ρ | LA/LD |
---|---|---|---|
205 | Micarta 856 | 0.723 | 1.1 |
280 | Linoleum, ivory | 0.563 | 1.4 |
193 | Prima vera, natural | 0.447 | 1.8 |
305 | Linoleum, light gray | 0.434 | 1.8 |
393 | Rubber, gray | 0.318 | 2.5 |
195 | White oak, natural | 0.281 | 2.8 |
281 | Linoleum, gray | 0.273 | 2.9 |
388 | Cork | 0.233 | 3.4 |
Location | Material | Reflection factor | ||
---|---|---|---|---|
Max. | Min. | Representative | ||
Ceiling | Acoustical materials | 0.816 | 0.265 | 0.50 |
Paints | 0.901 | 0.0922 | 0.60 | |
Walls | Acoustical materials | 0.816 | 0.265 | 0.50 |
Wood veneers | 0.447 | 0.0955 | 0.14 | |
Wall boards | 0.893 | 0.0492 | 0.20 | |
Wall linoleums, etc. | 0.770 | 0.147 | 0.50 | |
Wall tiles, asphalt | 0.780 | 0.0452 | 0.30 | |
ceramic | 0.875 | 0.0526 | 0.50 | |
Chalkboards, light | 0.906 | 0.540 | 0.60 | |
dark | 0.133 | 0.0627 | 0.08 | |
Paints | 0.901 | 0.0922 | 0.60 | |
Venetian blinds | 0.819 | 0.229 | 0.60 | |
Window shades | 0.758 | 0.0621 | 0.30 | |
Floor | Floor tiles, asphalt | 0.595 | 0.0396 | 0.10 |
ceramic | 0.715 | 0.0853 | 0.20 | |
rubber | 0.537 | 0.195 | 0.30 | |
Linoleums | 0.629 | 0.0417 | 0.15 | |
Oak flooring | 0.288 | 0.131 | 0.20 | |
Cork, natural | 0.233 | 0.114 | 0.18 | |
Carpets | 0.119 | 0.0143 | 0.05 | |
Furniture | Desk tops, wood | 0.192 | 0.106 | 0.14 |
linoleum, light | 0.125 | 0.100 | 0.11 | |
linoleum, dark | 0.0952 | 0.0503 | 0.06 | |
Enameled steel | 0.221 | 0.0577 | 0.08 | |
Upholstery, cloth coated fabric | 0.158 | 0.0149 | 0.05 | |
(artificial leather) | 0.880 | 0.0510 | 0.20 | |
Woods, natural finish | 0.447 | 0.0955 | 0.14 |
Reflection factors and trichromatic coefficients
No. | Name | Mfgr. | Approx. color | A | C | ||||
---|---|---|---|---|---|---|---|---|---|
x | y | ρ | x | y | ρ | ||||
Wood desk tops | |||||||||
520 | Color 47 | 37 | Brown | 0.5331 | 0.4136 | 0.192 | 0.4257 | 0.3818 | 0.171 |
521 | Color 42 | 37 | Brown | 0.5280 | 0.4100 | 0.140 | 0.4128 | 0.3732 | 0.126 |
522 | Maple. L-48 finish | 33 | Brown | 0.5267 | 0.4053 | 0.120 | 0.4084 | 0.3681 | 0.109 |
523 | Birch plywood, L-48 finish | 33 | Brown | 0.5255 | 0.4050 | 0.106 | 0.4051 | 0.3654 | 0.0958 |
Linoleum desk tops | |||||||||
524 | No. 1707 gray | 39 | Dk. gray | 0.4509 | 0.4103 | 0.0952 | 0.3141 | 0.3235 | 0.0952 |
523 | Brown No. 20SB | 1. 38 | Brown | 0.5171 | 0.4016 | 0.125 | 0.3898 | 0.3561 | 0.117 |
526 | Std. brown | 40 | Brown | 0.5241 | 0.4061 | 0.117 | 0.4029 | 0.3623 | 0.106 |
527 | No. 1701 brown | 39 | Brown | 0.5209 | 0.4001 | 0.100 | 0.3960 | 0.3528 | 0.0912 |
528 | Green No. 022SB | 1. 38 | Dk. green | 0.4378 | 0.4244 | 0.0535 | 0.2991 | 0.3266 | 0.0550 |
529 | No. 1705 green | 39 | Dk. green | 0.4435 | 0.4124 | 0.0503 | 0.3086 | 0.3225 | 0.0505 |
Enameled steel | |||||||||
530 | No. 640 | 34 | Gray | 0.4536 | 0.4139 | 0.221 | 0.3150 | 0.3248 | 0.221 |
531 | No. 4362 gray | 38 | Gray | 0.4502 | 0.4122 | 0.218 | 0.3122 | 0.3219 | 0.218 |
532 | Seal gray | 36 | Gray | 0.4465 | 0.4110 | 0.217 | 0.3104 | 0.3224 | 0.219 |
533 | No. 650 | 34 | Gray | 0.4595 | 0.4151 | 0.145 | 0.3157 | 0.3239 | 0.145 |
534 | No. 5 | 34 | Brown | 0.4916 | 0.4227 | 0.141 | 0.3685 | 0.3679 | 0.134 |
535 | Metropolitan 2 | 34 | Brown | 0.5206 | 0.4152 | 0.138 | 0.4020 | 0.3753 | 0.126 |
536 | No. 517 brown | 38 | Dk. brown | 0.4884 | 0.4128 | 0.0862 | 0.3560 | 0.3457 | 0.0822 |
537 | Desk | 37 | Dk. brown | 0.4360 | 0.4096 | 0.0805 | 0.3491 | 0.3365 | 0.0771 |
538 | No. 101 walnut | 40 | Dk. brown | 0.5083 | 0.4093 | 0.0866 | 0.3764 | 0.3510 | 0.0805 |
539 | No. 102 walnut | 39 | Dk. brown | 0.5053 | 0.4100 | 0.0861 | 0.3747 | 0.3507 | 0.0801 |
540 | Walnut | 38 | Dk. brown | 0.5098 | 0.4086 | 0.0784 | 0.3840 | 0.3560 | 0.0724 |
541 | No. 5 walnut | 36 | Dk. brown | 0.5033 | 0.4011 | 0.0779 | 0.3701 | 0.3424 | 0.0735 |
542 | No. 110 mahogany | 40 | Dk. red | 0.5072 | 0.4018 | 0.0688 | 0.3704 | 0.3364 | 0.0638 |
543 | No. 93 mahogany | 39 | Dk. red | 0.5010 | 0.3974 | 0.0604 | 0.3565 | 0.3252 | 0.0566 |
544 | No. 5 mahogany | 36 | Dk. red | 0.4929 | 0.3925 | 0.0584 | 0.3499 | 0.3210 | 0.0556 |
545 | Mahogany | 38 | Dk. red | 0.4983 | 0.3953 | 0.0577 | 0.3523 | 0.3218 | 0.0541 |
546 | No. 55 blucgreen | 39 | Dk. green | 0.4347 | 0.4113 | 0.103 | 0.2994 | 0.3160 | 0.105 |
547 | No. 3 green | 36 | Dk. green | 0.4592 | 0.4319 | 0.0977 | 0.3366 | 0.3611 | 0.0960 |
548 | Olive F | 34 | Dk. green | 0.4892 | 0.4204 | 0.0871 | 0.3601 | 0.3567 | 0.0832 |
549 | No. 112 O. G. | 40 | Dk. green | 0.4724 | 0.4306 | 0.0824 | 0.3408 | 0.3583 | 0.0809 |
550 | No. 46 green | 39 | Dk. green | 0.4716 | 0.4279 | 0.0783 | 0.3419 | 0.3569 | 0.0766 |
551 | Olive green | 38 | Dk. green | 0.4656 | 0.4208 | 0.0615 | 0.3310 | 0.3416 | 0.0605 |
Upholstery materials, cloth | |||||||||
552 | Arabesque, wheat 8784 | 35 | Brown | 0.5211 | 0.4070 | 0.158 | 0.4000 | 0.3759 | 0.145 |
553 | Earl, medallion gold 1559 | 35 | Tan | 0.5434 | 0.4057 | 0.105 | 0.4371 | 0.3977 | 0.0935 |
554 | Mosaic, bagdad rose 25 | 35 | Red | 0.5425 | 0.3603 | 0.0794 | 0.3937 | 0.2940 | 0.0686 |
555 | Corinth, rose 6731 | 35 | Red | 0.5529 | 0.3614 | 0.0781 | 0.4095 | 0.3044 | 0.0662 |
356 | Crochette, copper rust 8984 | 35 | Red | 0.5813 | 0.3638 | 0.0769 | 0.4636 | 0.3351 | 0.0632 |
557 | Danbury, desert beige 367 | 35 | Dk. pink | 0.5116 | 0.3942 | 0.118 | 0.3749 | 0.3406 | 0.109 |
558 | Empress, turquoise 40 | 35 | Green | 0.3810 | 0.4269 | 0.0878 | 0.2589 | 0.3204 | 00968 |
559 | Cortona, turquoise 221 | 35 | Green | 0.3805 | 0.4303 | 0.0771 | 0.2597 | 0.3251 | 0.0851 |
560 | Breton, ferngreen 248 | 35 | Green | 0.4510 | 0.4403 | 0.0760 | 0.3269 | 0.3892 | 0.0775 |
561 | Gros Point, acadia blue 333 | 35 | Blue | 0.4094 | 0.4055 | 0.0755 | 0.2724 | 0.3020 | 0.0802 |
562 | Moresque, twilight blue 55 | 35 | Blue | 0.3652 | 0.3620 | 0.0401 | 0.2311 | 0.2310 | 0.0445 |
563 | Molano. blue 9273 | 35 | Dk. blue | 0.3732 | 0.3832 | 0.0179 | 0.2368 | 0.2676 | 0.0200 |
564 | Serenade, royal blue 9708 | 35 | Dk. blue | 0.3005 | 0.2872 | 0.0149 | 0.1908 | 0.1577 | 0.0183 |
Upholstery materials, artificial leather | |||||||||
565 | Moleather 1001 | 2 | White | 0.4525 | 0.4100 | 0.880 | 0.3160 | 0.3236 | 0.875 |
566 | Alhambra, while 64 | 35 | White | 0.4514 | 0.4102 | 0.786 | 0.3148 | 0.3240 | 0.788 |
567 | Moleather 1029 | 2 | Ivory | 0.4661 | 0.4165 | 0.775 | 0.3341 | 0.3425 | 0.760 |
568 | Canfield. ivory 7500 | 35 | Ivory | 0.4710 | 0.4189 | 0.727 | 0.3417 | 0.3500 | 0.711 |
569 | Grenadier, old white 6817 | 35 | Lt. gray | 0.4630 | 0.4117 | 0.575 | 0.3281 | 0.3322 | 0.567 |
570 | Alhambra, dove gray 6811 | 35 | Gray | 0.4512 | 0.4056 | 0.271 | 0.3126 | 0.3160 | 0.270 |
571 | Alhambra, sand 5020 | 35 | Tan | 0.4868 | 0.4146 | 0.486 | 0.3584 | 0.3536 | 0.464 |
572 | Moleather 1019 | 2 | Buff | 0.4843 | 0.4205 | 0.463 | 0.3590 | 0.3631 | 0.445 |
573 | Fabrikoid No. 1107F | 11 | Tan | 0.5140 | 0.4159 | 0.440 | 0.4148 | 0.3658 | 0.404 |
574 | Alhambra, moka beige 7089 | 35 | Lt. brown | 0.5235 | 0.4176 | 0.324 | 0.4167 | 0.3903 | 0.295 |
575 | Canfield, beige 5943 | 35 | Tan | 0.4902 | 0.4129 | 0.311 | 0.3616 | 0.3539 | 0.296 |
576 | Canfield, ember red 7069 | 35 | Red | 0.6130 | 0.3460 | 0.215 | 0.5104 | 0.3212 | 0.163 |
577 | Fabrikoid No. 2021 | 11 | Brown | 0.5252 | 0.4108 | 0.152 | 0.4143 | 0.3753 | 0.137 |
578 | Canfield, harness tan 6810 | 35 | Brown | 0.5411 | 0.3995 | 0.150 | 0.4288 | 0.3684 | 0.133 |
579 | Grenadier, hotly red 5555 | 35 | Red | 0.6065 | 0.3454 | 0.130 | 0.4895 | 0.3194 | 0.101 |
580 | Alhambra, rust 5116 | 35 | Brown | 0.5652 | 0.3708 | 0.116 | 0.4380 | 0.3353 | 0.0988 |
581 | Canfield, autumn brown 82 | 35 | Brown | 0.5210 | 0.3997 | 0.111 | 0.3954 | 0.3524 | 0.101 |
582 | Fabrikoid No. 5025 | 11 | Dk. red | 0.5866 | 0.3514 | 0.0903 | 0.4567 | 0.3134 | 0.0720 |
583 | Moleather 1015 | 2 | Dk. brown | 0.4964 | 0.4070 | 0.0733 | 0.3663 | 0.3453 | 0.0696 |
584 | Alhambra, apricot 7051 | 35 | Pink | 0.5147 | 0.3996 | 0.453 | 0.3844 | 0.3465 | 0.413 |
585 | Canfield. jonquil 7248 | 35 | Lt. yellow | 0.4913 | 0.4386 | 0.757 | 0.3815 | 0.4035 | 0.725 |
586 | Canfield. canary 3223 | 35 | Yellow | 0.5180 | 0.4459 | 0.728 | 0.4350 | 0.4489 | 0.674 |
587 | Canfield, orange 5113 | 35 | Orange | 0.6071 | 0.3656 | 0.241 | 0.5236 | 0.3635 | 0.188 |
588 | Moleathcr 1020 | 2 | Orange | 0.5960 | 0.3734 | 0.231 | 0.5113 | 0.3640 | 0.183 |
589 | Alhambra. burnt orange 7539 | 35 | Orange | 0.5773 | 0.3724 | 0.210 | 0.4781 | 0.3270 | 0.159 |
590 | Grenadier. aztee rust 6805 | 33 | Dk. orange | 0.5852 | 0.3749 | 0.171 | 0.4886 | 0.3566 | 0.138 |
591 | Canfield. chartreuse 6010 | 35 | Y. green | 0.4690 | 0.4640 | 0.433 | 0.3681 | 0.4360 | 0.429 |
592 | Grenadier, palmgreen 7563 | 35 | Y. green | 0.4429 | 0.4447 | 0.222 | 0.3241 | 0.3753 | 0.226 |
593 | Canfield, sage green 7545 | 35 | Green | 0.3999 | 0.4372 | 0.200 | 0.2781 | 0.3405 | 0.214 |
594 | Alhambra, aqua 4900 | 35 | Green | 0.3738 | 0.4463 | 0.182 | 0.2589 | 0.3444 | 0.201 |
595 | Grenadier, tropic green 6808 | 35 | Green | 0.3873 | 0.4597 | 0.156 | 0.2729 | 0.3784 | 0.171 |
596 | Moleather 1010 | 2 | Dk. green | 0.4145 | 0.4351 | 0.0653 | 0.2908 | 0.3439 | 0.0678 |
597 | Canfield, rose mauve 7047 | 35 | Orchid | 0.5181 | 0.3839 | 0.225 | 0.3775 | 0.3167 | 0.202 |
598 | Alhambra, thistle blue 7541 | 35 | Blue | 0.3344 | 0.3552 | 0.156 | 0.2170 | 0.2179 | 0.180 |
599 | Grenadier, grapetone 7046 | 35 | Purple | 0.5170 | 0.3730 | 0.147 | 0.3656 | 0.2932 | 0.132 |
600 | Grenadier, capri blue 7542 | 35 | Blue | 0.3281 | 0.3142 | 0.100 | 0.2070 | 0.1811 | 0.116 |
601 | Moleather 1011 | 2 | Dk. blue | 0.3964 | 0.3803 | 0.0622 | 0.2585 | 0.2597 | 0.0666 |
602 | Grenadier, midnight blue 5033 | 35 | Dk. blue | 0.3926 | 0.3734 | 0.0510 | 0.2537 | 0.2527 | 0.0549 |
Manufacturers. (For other manufacturers, see Table II of paper on acoustical materials.)
No. | Name |
---|---|
33 | American Seating Co. |
34 | Art Metal Construction Co. |
35 | L. C. Chase and Co. |
36 | Globe-Wernicke Co. |
37 | Heywood-Wakefield Co. |
38 | Metal Office Furniture Co. |
39 | Security Steel Equipment Corp. |
40 | Shaw-Walker Co. |
No. | Material | ρ | LA/LD |
---|---|---|---|
205 | Micarta 856 | 0.723 | 1.1 |
280 | Linoleum, ivory | 0.563 | 1.4 |
193 | Prima vera, natural | 0.447 | 1.8 |
305 | Linoleum, light gray | 0.434 | 1.8 |
393 | Rubber, gray | 0.318 | 2.5 |
195 | White oak, natural | 0.281 | 2.8 |
281 | Linoleum, gray | 0.273 | 2.9 |
388 | Cork | 0.233 | 3.4 |
Representative values of reflection factor.
Location | Material | Reflection factor | ||
---|---|---|---|---|
Max. | Min. | Representative | ||
Ceiling | Acoustical materials | 0.816 | 0.265 | 0.50 |
Paints | 0.901 | 0.0922 | 0.60 | |
Walls | Acoustical materials | 0.816 | 0.265 | 0.50 |
Wood veneers | 0.447 | 0.0955 | 0.14 | |
Wall boards | 0.893 | 0.0492 | 0.20 | |
Wall linoleums, etc. | 0.770 | 0.147 | 0.50 | |
Wall tiles, asphalt | 0.780 | 0.0452 | 0.30 | |
ceramic | 0.875 | 0.0526 | 0.50 | |
Chalkboards, light | 0.906 | 0.540 | 0.60 | |
dark | 0.133 | 0.0627 | 0.08 | |
Paints | 0.901 | 0.0922 | 0.60 | |
Venetian blinds | 0.819 | 0.229 | 0.60 | |
Window shades | 0.758 | 0.0621 | 0.30 | |
Floor | Floor tiles, asphalt | 0.595 | 0.0396 | 0.10 |
ceramic | 0.715 | 0.0853 | 0.20 | |
rubber | 0.537 | 0.195 | 0.30 | |
Linoleums | 0.629 | 0.0417 | 0.15 | |
Oak flooring | 0.288 | 0.131 | 0.20 | |
Cork, natural | 0.233 | 0.114 | 0.18 | |
Carpets | 0.119 | 0.0143 | 0.05 | |
Furniture | Desk tops, wood | 0.192 | 0.106 | 0.14 |
linoleum, light | 0.125 | 0.100 | 0.11 | |
linoleum, dark | 0.0952 | 0.0503 | 0.06 | |
Enameled steel | 0.221 | 0.0577 | 0.08 | |
Upholstery, cloth coated fabric | 0.158 | 0.0149 | 0.05 | |
(artificial leather) | 0.880 | 0.0510 | 0.20 | |
Woods, natural finish | 0.447 | 0.0955 | 0.14 |