Editing Color rendering index (section)

===Test color samples===

{| class="wikitable floatleft"
|-
! Name
! Appr. Munsell
! Appearance under daylight
! Swatch
|-
| TCS01
| 7,5 R 6/4
| Light grayish red
| style="background:#e8a7b0;" |
|-
| TCS02
| 5 Y 6/4
| Dark grayish yellow
| style="background:#ccb184;" |
|-
| TCS03
| 5 GY 6/8
| Strong yellow green
| style="background:#abc161;" |
|-
| TCS04
| 2,5 G 6/6
| Moderate yellowish green
| style="background:#6fc59f;" |
|-
| TCS05
| 10 BG 6/4
| Light bluish green
| style="background:#7fc2df;" |
|-
| TCS06
| 5 PB 6/8
| Light blue
| style="background:#8fb6ff;" |
|-
| TCS07
| 2,5 P 6/8
| Light violet
| style="background:#cca5ff;" |
|-
| TCS08
| 10 P 6/8
| Light reddish purple
| style="background:#eea3ef;" |
|-
| TCS09
| 4,5 R 4/13
| Strong red
| style="background:#e9214c;" |
|-
| TCS10
| 5 Y 8/10
| Strong yellow
| style="background:#fff456;" |
|-
| TCS11
| 4,5 G 5/8
| Strong green
| style="background:#0cac8a;" |
|-
| TCS12
| 3 PB 3/11
| Strong blue
| style="background:#005bc0;" |
|-
| TCS13
| 5 YR 8/4
| Light yellowish pink 
| style="background:#ffe8da;" |
|-
| TCS14
| 5 GY 4/4
| Moderate olive green ([[leaf]])
| style="background:#6c7d4f;" |
|}

As specified in {{harvtxt|CIE|1995}}, the original test color samples (TCS) are taken from an early edition of the [[Farnsworth-Munsell 100 hue test|Munsell]] Atlas. The first eight samples, a subset of the eighteen proposed in {{harvtxt|Nickerson|1960}}, are relatively low saturated colors and are evenly distributed over the complete range of hues.<ref>See the CIE 1960 UCS diagram towards the end of the [[#Example|Example]] section.</ref> These eight samples are employed to calculate the general color rendering index <math>R_a</math>. The last six samples provide supplementary information about the color rendering properties of the light source; the first four for high saturation, and the last two as representatives of well-known objects. The reflectance spectra of these samples may be found in {{harvtxt|CIE|2004}},<ref>[http://photometry.kriss.re.kr/wiki/img_auth.php/4/47/CIE_TCS.csv TCS spectra in CSV form] {{webarchive|url=https://web.archive.org/web/20090211042805/http://photometry.kriss.re.kr/wiki/img_auth.php/4/47/CIE_TCS.csv |date=February 11, 2009 }}, Korea Research Institute of Standards and Science.</ref> and their approximate Munsell notations are listed aside.<ref>[https://www.rit.edu/science/munsell-color-science-lab-educational-resources#munsell-renotation-data Munsell Renotation Data], ''Munsell Color Science Laboratory'', [[Rochester Institute of Technology]]</ref>

[[File:CIE CRI TCS SPDs.svg|300px|right]]
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