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ASTM D6290 - Standard Test Method for Color Determination of Plastic Pellets
October 1, 2018 - ASTM

This test method is used for the instrumental measurement of the degree of yellowness (or change of degree of yellowness) under daylight illumination of homogeneous, nonfluorescent, nearly-colorless transparent or nearly-white translucent or opaque plastics. The measurement is made on pellets and...

DS/EN ISO 7393-2 - Water quality – Determination of free chlorine and total chlorine – Part 2: Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes (ISO 7393-2:2017)
February 5, 2018 - DS

ISO 7393-2:2017 specifies a method for the determination of free chlorine and total chlorine in water, readily applicable to lab- and field-testing. It is based on measurement of the absorption, the red DPD colour complex in a photometer or the colour intensity by visual comparison of the colour...

ISO 7393-2 - Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,Ndialkyl- 1,4-phenylenediamine, for routine control purposes
December 1, 2017 - ISO

This document specifies a method for the determination of free chlorine and total chlorine in water, readily applicable to lab- and field-testing. It is based on measurement of the absorption, the red DPD colour complex in a photometer or the colour intensity by visual comparison of the colour with...

ASTM E1455 - Standard Practice for Obtaining Colorimetric Data from a Visual Display Unit Using Tristimulus Colorimeters
July 1, 2017 - ASTM

This practice is intended as an aid for improving the accuracy of colorimetric measurements made with tristimulus colorimeters on visual display units, such as cathode ray tubes (CRTs) and self-luminous flat-panel displays. It explains a useful step in the analysis of colorimetric data that...

IEC 62321-7-2 - Determination of certain substances in electrotechnical products – Part 7-2: Hexavalent chromium – Determination of hexavalent chromium (Cr(VI)) in polymers and electronics by the colorimetric method
March 1, 2017 - IEC

This part of IEC 62321 describes procedures to measure hexavalent chromium, Cr(VI), quantitatively in samples of polymers and electronics. This method employs organic solvent to dissolve or swell the sample matrix, followed by an alkaline digestion procedure to extract Cr(VI) from samples. Studies...

ASTM D5386 - Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
December 1, 2016 - ASTM

This test method covers an instrumental method for the CIE (Commission International de l'Eclairage) tristimulus measurement of the color of near-clear liquid samples. The transmission measurement values are converted to the color scale in the platinum-cobalt (Pt-Co) system. This test method has...

ASTM C1777 - Standard Test Method for Rapid Determination of the Methylene Blue Value for Fine Aggregate or Mineral Filler Using a Colorimeter
December 15, 2014 - ASTM

This test method provides a rapid test to determine the amount of methylene blue adsorbed by a specimen of fine aggregate or mineral filler and can be used both in the laboratory and in the field. The values stated in SI units are to be regarded as standard. No other units of measurement are...

DIN EN 13523-3 - Coil coated metals - Test methods - Part 3: Colour difference - Instrumental comparison
August 1, 2014 - DIN

This part of EN 13523 specifies procedures for determining the instrumental colour difference (CIELAB) of an organic coating on a metallic substrate. Establishing a standard as well as the magnitude of an acceptable colour difference are not covered by this method. Two methods are given in this...

DS/EN 13523-3 - Coil coated metals - Test methods - Part 3: Colour difference - Instrumental comparison
June 26, 2014 - DS

This part of EN 13523 specifies procedures for determining the instrumental colour difference (CIELAB) of an organic coating on a metallic substrate. Establishing a standard as well as the magnitude of an acceptable colour difference are not covered by this method. Two appropriate methods are given...

TAPPI T 527 - Color of paper and paperboard (d/0, C/2)
January 1, 2013 - TAPPI

This method specifies a procedure for measuring the color of paper or paperboard with tristimulus filter colorimeters or spectrophotometers incorporating diffuse/0 geometry and CIE (International Commission on Illumination) illuminant C. NOTE 1: TAPPI T 524 "Color of Paper and Paperboard...

TAPPI T 524 - Color of paper and paperboard (45/0, C/2)
January 1, 2013 - TAPPI

This method specifies a procedure for measuring the color of paper or paperboard with tristimulus filter colorimeters or spectrophotometers incorporating directional (45/0) geometry and CIE (International Commission on Illumination) illuminantC. NOTE 1: TAPPI T 527 "Color of Paper and...

ASTM E1164 - Standard Practice for Obtaining Spectrometric Data for Object-Color Evaluation
July 1, 2012 - ASTM

This practice covers the instrumental measurement requirements, calibration procedures, and material standards needed to obtain precise spectral data for computing the colors of objects. This practice lists the parameters that must be specified when spectrometric measurements are required in...

CIE 192 - PRACTICAL DAYLIGHT SOURCES FOR COLORIMETRY
January 1, 2010 - CIE

INTRODUCTION Specification of the colour of objects transmitting or reflecting light requires specification of both the spectral transmittance or reflectance of the object and the spectral characteristics of the illumination. This illumination must be reproducible, unlike ever-changing natural...

ASTM E2366 - Standard Test Method for Measurement of Daytime Chromaticity of Pavement Marking Materials Using a Portable Reflection Colorimeter
January 1, 2005 - ASTM

This test method covers measurement of the daytime chromaticity coordinates (x, y) of horizontal pavement markings, such as traffic stripes and surface symbols, and pavement surfaces under diffuse illumination, using a portable reflection colorimeter that can be placed on the surface to...

ASTM E1347 - Standard Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
December 1, 2006 - ASTM

This test method covers the instrumental measurement of specimens resulting in color coordinates and color difference values by using a tristimulus colorimeter, also known as a tristimulus filter colorimeter or a color-difference meter. Provision is made in this test method for the...

ASTM E2367 - Standard Test Method for Measurement of Nighttime Chromaticity of Pavement Marking Materials Using a Portable Retroreflection Colorimeter
January 1, 2005 - ASTM

This test method covers measurement of the nighttime chromaticity coordinates (x, y) of horizontal pavement markings, such as traffic stripes and surface symbols, using a portable retroreflection colorimeter that can be placed on the road delineation to measure the chromaticity at a...

MS 51441 - COLORIMETER, PHOTOELECTRIC
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