(CMA)
(CNAS)
(ISO)
(高新技术企业)
色差测量 标准相关标准参考信息
ASTM E805-22 材料颜色或色差测量的仪器方法识别的标准实施规程
简介：
信息：ICS：17.180.20 CCS： 发布：2022-06-01 实施：
ASTM D2244-09b 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2009-12-01 实施：
ASTM E805-01 识别材料颜色或色差测量方法的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2001-12-10 实施：
PNS ASTM E1347-2021 用三刺激比色法测量颜色和色差的标准试验方法
简介：
信息：ICS：17.180.20 CCS：A00/09 发布：2021 实施：
ASTM D2244-09a 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2009-08-01 实施：
ASTM C1510-2001 Abriged分光光度测量法测定卫生陶瓷颜色和色差的标准试验方法
简介：1.1 This test method describes the instrumental measurement of the reflection properties and color of ceramic glazes and other whitewares by the use of a spectrophotometer or spectrocolorimeter with a hemispherical optical measuring system, such as an integrating sphere.1.2 The test method is suitable for use with most specimens having an exterior flat surface large enough to cover the spectrophotometer sample port.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS：71.040.50 (Physicochemical methods of analysis) CCS：Q31 发布：2001 实施：
ASTM E1347-06(2020) 通过三刺激比色法进行颜色和色差测量的标准测试方法
简介：
信息：ICS：17.180.20 CCS： 发布：2020-05-01 实施：
ASTM D2244-09 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2009-07-01 实施：
ASTM C1510-2001(2012) 滤色分光光度测量法测定卫生陶瓷颜色和色差的标准试验方法
简介：The most direct and accessible methods for obtaining the color coordinates of ceramic glazes and related whitewares are by instrumental measurement using spectrophotometers or colorimeters with either hemispherical or bidirectional optical measuring systems. This test method provides procedures for such measurement by reflectance spectrophotometry using a hemispherical optical measuring system. This test method is especially suitable for measurement of the following types of specimens for the indicated uses(See Practice E805.): All types of ceramic glaze and related whiteware specimens to obtain data for use in computer colorant formulation. Ceramic glaze and related whiteware specimens for color assessment. For the measurement of plane-surface high-gloss specimens, the specular component should generally be excluded during the measurement. For the measurement of plane-surface intermediate-gloss (satin) specimens, where the first-surface reflection component may be distributed over a wide range of angles, measurement may be made with the specular component included, but the resulting color coordinates may not correlate best with visual judgments of the color. Measurement with specular excluded may lead to better correlations. For the measurement of plane-surface, low-gloss (matte) specimens, the specular component may either be excluded or included, as no significant difference in the results should be apparent. An estimate of gloss may be obtained by measuring the reflection both with the specular component of reflection included and excluded, and then calculating the difference between the two measurements at several wavelengths across the visible spectrum, as described in 10.2.1.1 This test method describes the instrumental measurement of the reflection properties and color of ceramic glazes and other whitewares by the use of a spectrophotometer or spectrocolorimeter with a hemispherical optical measuring system, such as an integrating sphere. 1.2 The test method is suitable for use with most specimens having an exterior flat surface large enough to cover the spectrophotometer sample port. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS：71.040.50 (Physicochemical methods of analysis) CCS：Q31 发布：2001 实施：
ASTM C609-20 用于测量陶瓷片之间的光反射率值和小色差的标准测试方法
简介：
信息：ICS：91.100.25 CCS： 发布：2020-04-01 实施：
ASTM D2244-2009b 仪器测量颜色坐标中允许色差和色差的计算用标准实施规程
简介：The original CIE color scales based on tristimulus values X, Y, Z and chromaticity coordinates x, y are not uniform visually. Each subsequent color scale based on CIE values has had weighting factors applied to provide some degree of uniformity so that color differences in various regions of color space will be more nearly comparable. On the other hand, color differences obtained for the same specimens evaluated in different color-scale systems are not likely to be identical. To avoid confusion, color differences among specimens or the associated tolerances should be compared only when they are obtained for the same color-scale system. There is no simple factor that can be used to convert accurately color differences or color tolerances in one system to difference or tolerance units in another system for all colors of specimens. For uniformity of practice, the CIE recommended in 1976 the use of two color metrics. The CIELAB metric, with its associated color-difference equation, has found wide acceptance in the coatings, plastics, textiles and related industries. While the CIELAB equation has not completely replaced the use of Hunter LH, aH, bH, this older scale is no longer recommended for other than legacy users, and is therefore included in an Appendix for historical purposes. The CIELAB color-difference equation is also not recommended in this practice for use in describing small and moderate color differences (differences with magnitude less than 5.0 x0394; E*ab units). The four more recently defined equations, documented here, are highly recommended for use with color-differences in the range of 0.0 to 5.0 x0394;E*ab units. Users of color tolerance equations have found that, in each system, summation of three, vector color-difference components into a single scalar value is very useful for determining whether a specimen color is within a specified tolerance from a standard. However, for control of color in production, it may be necessary to know not only the magnitude of the departure from standard but also the direction of this departure. It is possible to include information on the direction of a small color difference by listing the three instrumentally determined components of the color difference. Selection of color tolerances based on instrumental values should be carefully correlated with a visual appraisal of the acceptability of differences in hue, lightness, and saturation obtained by using Practice D1729. The three tolerance equations given here have been tested extensively against such data for textiles and plastics and have been shown to agree with the visual evaluations to within the experimental uncertainty of the visual judgments. That implies that the equations themselves misclassify a color difference with a frequency no greater than that of the most experienced visual color matcher. While color difference equations and color tolerance equations are routinely applied to a wide range of illuminants, they have been derived or optimized, or both, for use under daylight illumination. Good correlation with the visual judgments may not be obtained when the calculations are made with other illuminants. Use of a tolerance equation for other than daylight conditions will require visual confirmation of the level of metamerism in accordance with ........
信息：ICS：17.180.20 (Colours and measurement of light) CCS：A26 发布：2009 实施：
ASTM C1510-2001(2007) Abriged分光光度测量法测定卫生陶瓷颜色和色差的标准试验方法
简介：The most direct and accessible methods for obtaining the color coordinates of ceramic glazes and related whitewares are by instrumental measurement using spectrophotometers or colorimeters with either hemispherical or bidirectional optical measuring systems. This test method provides procedures for such measurement by reflectance spectrophotometry using a hemispherical optical measuring system. This test method is especially suitable for measurement of the following types of specimens for the indicated uses(See Practice E 805.): 5.2.1 All types of ceramic glaze and related whiteware specimens to obtain data for use in computer colorant formulation. 5.2.2 Ceramic glaze and related whiteware specimens for color assessment. 5.2.2.1 For the measurement of plane-surface high-gloss specimens, the specular component should generally be excluded during the measurement. 5.2.2.2 For the measurement of plane-surface intermediate-gloss (satin) specimens, where the first-surface reflection component may be distributed over a wide range of angles, measurement may be made with the specular component included, but the resulting color coordinates may not correlate best with visual judgments of the color. Measurement with specular excluded may lead to better correlations. 5.2.2.3 For the measurement of plane-surface, low-gloss (matte) specimens, the specular component may either be excluded or included, as no significant difference in the results should be apparent. An estimate of gloss may be obtained by measuring the reflection both with the specular component of reflection included and excluded, and then calculating the difference between the two measurements at several wavelengths across the visible spectrum, as described in 10.2.1.1 This test method describes the instrumental measurement of the reflection properties and color of ceramic glazes and other whitewares by the use of a spectrophotometer or spectrocolorimeter with a hemispherical optical measuring system, such as an integrating sphere.1.2 The test method is suitable for use with most specimens having an exterior flat surface large enough to cover the spectrophotometer sample port.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS：71.040.50 (Physicochemical methods of analysis) CCS：Q31 发布：2001 实施：
ASTM C609-07(2019) 用于测量陶瓷片之间的光反射率值和小色差的标准测试方法
简介：
信息：ICS：91.100.25 CCS： 发布：2019-08-01 实施：
ASTM D2244-07 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2007-05-01 实施：
ASTM D2244-93(2000) 从仪器测量的颜色坐标计算色差的标准试验方法
简介：
信息：ICS：17.180.20 CCS： 发布：2000-07-10 实施：
ASTM E805-12a(2017) 识别材料颜色或色差测量方法的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2017-05-01 实施：
ASTM D2244-07e1 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2007-05-01 实施：
ASTM C609-90(2000) 陶瓷墙或地砖之间微小色差测量的标准试验方法
简介：
信息：ICS：91.100.25 CCS： 发布：2000-01-01 实施：
ASTM D2244-16 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2016-07-01 实施：
ASTM C609-07 用于测量陶瓷片之间的光反射率值和小色差的标准测试方法
简介：
信息：ICS：91.100.25 CCS： 发布：2007-05-01 实施：
ASTM C609-90(1995) 陶瓷墙或地砖之间微小色差测量的标准试验方法
简介：
信息：ICS： CCS： 发布：2000-01-01 实施：
ASTM E1347-06(2015) 通过三刺激比色法进行颜色和色差测量的标准测试方法
简介：
信息：ICS：17.180.20 CCS： 发布：2015-11-01 实施：
ASTM C609-2007(2014) 瓷砖块间光反射值和少量色差的测量用标准试验方法
简介：5.1x00a0;This test method describes the means of determining the LRV of a tile specimen. Certain building codes require the use of materials rated by LRV. Application of this test method provides the means for rating ceramic tile. LRVs reported for ceramic tile should include reference to the observer and illuminant for which the rating is valid. 5.2x00a0;LRV is a property dependent on the overall color of a tile specimen. Control of LRV is achieved through control of color and adherence to color specifications will govern the acceptability of a product with respect to LRV. Therefore, a product cannot be judged as having an unacceptable LRV unless the color of the product is found to be unacceptable. 5.3x00a0;Mixtures of several tile products are commonly installed on a surface, requiring a means to calculate LRV for a product mix. The rating obtained for an individual tile product can be used to calculate the LRV for a product mix using the following equation: where: n x00a0;x00a0;=x00a0;x00a0; number of products included in the mix p1 to n x00a0;x00a0;=x00a0;x00a0; the proportion of the surface area taken up by each product, the sum of p1 to pn must equal one LRV1 to n x00a0;x00a0;=x00a0;x00a0; the LRV for each product used For example, a mixture of two products is used on a surface. Two thirds of the surface area is covered by product A with a LRV of 758201;%, and one third of the surface is covered by product B with an LRV of 608201;% (see Fig. 2). Using the equation, the product mix is found to have an LRV of 708201;%. FIG. 2 Example of a Product Mix Used on a Surface 5.4x00a0;The test method described herein provides instrumental means as the basis for judging color difference. Magnitude of color difference between pairs of ceramic tile can be determined and expressed in numerical terms. 5.5x00a0;Based on interlaboratory investigation,3 color difference x0394;E of plain-colored tile, if determined according to this test method, should give excellent reproducibility with a standard deviation of not more than x03c3;8201;=8201;x00b1;0.15 units. LRV should also give excellent reproducibility when used for solid colored tile based on the relationship between LRV and either the Y tristimulus or L value. However, LRV reproducibility for multicolored, speckled, or textured surface tile will be dependent upon the degree of variation of the tile specimen, and will require a different measurement procedure to minimize the impact of the variation. 5.6x00a0;The test method requires the use of multiple illuminants for the determinati......
信息：ICS：91.100.25 (Terracotta building products) CCS：Q31;Q33 发布：2007 实施：
ASTM E1347-97 用三色激励（滤光片）比色法测量颜色和色差的标准试验方法
简介：
信息：ICS：17.180.20 CCS： 发布：1997-06-10 实施：
ASTM D2244-15a 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2015-08-01 实施：
ASTM D2244-2007 仪器测量颜色坐标中允许色差和色差的计算用标准实施规程
简介：1.1 This practice covers the calculation, from instrumentally measured color coordinates based on daylight illumination, of color tolerances and small color differences between opaque specimens such as painted panels, plastic plaques, or textile swatches. Where it is suspected that the specimens may be metameric, that is, possess different spectral curves though visually alike in color, Practice D 4086 should be used to verify instrumental results. The tolerances and differences determined by these procedures are expressed in terms of approximately uniform visual color perception in CIE 1976 CIELAB opponent-color space (1), CMC tolerance units (2), CIE94 tolerance units (3), the DIN99 color difference formula given in DIN 6176 (4), or the new CIEDE2000 color difference units (5).1.2 For product specification, the purchaser and the seller shall agree upon the permissible color tolerance between test specimen and reference and the procedure for calculating the color tolerance. Each material and condition of use may require specific color tolerances because other appearance factors, (for example, specimen proximity, gloss, and texture), may affect the correlation between the magnitude of a measured color difference and its commercial acceptability.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.
信息：ICS：17.180.20 (Colours and measurement of light) CCS：A26 发布：2007 实施：
ASTM D2244-21 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS：/ 发布： 实施：0000-00-00
ASTM D2244-15 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2015-01-01 实施：
ASTM C609-2007 瓷砖块间光反射值和少量色差的测量用标准试验方法
简介：1.1 This test method covers the measurement of Light Reflectance Value (LRV) and visually small color difference between pieces of glazed or unglazed ceramic tile, using any spectrophotometer that meets the requirements specified in the test method. LRV and the magnitude and direction of the color difference are expressed numerically, with sufficient accuracy for use in product specification. 1.2 LRV may be measured for either solid-colored tile or tile having a multicolored, speckled, or textured surface. For tile that are not solid-colored, an average reading should be obtained from multiple measurements taken in a pattern representative of the overall sample as described in 9.2 of this test method. Small color difference between tiles should only be measured for solid-color tiles. Small color difference between tile that have a multicolored, speckled, or textured surface, are not valid.1.3 For solid colored tile, a comparison of the test specimen and reference specimen should be made under incandescent, fluorescent and daylight illuminant conditions. The use of multiple illuminants allows the color difference measurement to be made without the risk of wrongly accepting a match when the tiles being compared are metamers. (See 3.1.4.)1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS：91.100.25 (Terracotta building products) CCS：Q31 发布：2007 实施：
ASTM D2244-2016 计算仪器测量颜色的颜色容差和色差的标准实施规程
简介：5.1x00a0;The original CIE color scales based on tristimulus values X, Y, Z and chromaticity coordinates x, y are not uniform visually. Each subsequent color scale based on CIE values has had weighting factors applied to provide some degree of uniformity so that color differences in various regions of color space will be more nearly comparable. On the other hand, color differences obtained for the same specimens evaluated in different color-scale systems are not likely to be identical. To avoid confusion, color differences among specimens or the associated tolerances should be compared only when they are obtained for the same color-scale system. There is no simple factor that can be used to convert accurately color differences or color tolerances in one system to difference or tolerance units in another system for all colors of specimens. 5.2x00a0;Color differences calculated in x0394;ECMC or x0394;E00 units are highly recommended for use with color-differences in the range of 0.0 to 5.0 x0394;E*ab units. Both are appropriate for and widely used in industrial and commercial applications including, but not limited to, automobiles, coatings, cosmetics, inks, packaging, paints, plastics, printing, security, and textiles. The Hunter color difference components x0394;LH, x0394;aH, x0394;bH, and their color difference unit x0394;EH, are used by the coil coating and aluminum extrusion coating industries, as well as the customers of these users. They are, therefore, included in Appendix X1 for historical purposes and use. 5.3x00a0;Users of color tolerance equations have found that, in each system, summation of three, vector color-difference components into a single scalar value is very useful for determining whether a specimen color is within a specified tolerance from a standard. However, for control of color in production, it may be necessary to know not only the magnitude of the departure from standard but also the direction of this departure. It is possible to include information on the direction of a small color difference by listing the three instrumentally determined components of the color difference. 5.4x00a0;Selection of color tolerances based on instrumental values should be carefully correlated with a visual appraisal of the acceptability of differences in hue, lightness, and saturation obtained by using Practice D1729. The three tolerance equations given here have been tested extensively against such data for textiles and plastics and have been shown to agree with the visual evaluations to within the experimental uncertainty of the visual judgments. That implies that the equations themselves misclassify a color difference with a ......
信息：ICS：17.180.20 CCS： 发布： 实施：
ASTM D2244-15e1 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2015-01-01 实施：
ASTM E1347-06 通过三刺激比色法进行颜色和色差测量的标准测试方法
简介：
信息：ICS： CCS： 发布：2006-12-01 实施：
简介： 信息：
ASTM D2244-2015 计算仪器测量颜色的颜色容差和色差的标准实践规程
简介：5.1x00a0;The original CIE color scales based on tristimulus values X, Y, Z and chromaticity coordinates x, y are not uniform visually. Each subsequent color scale based on CIE values has had weighting factors applied to provide some degree of uniformity so that color differences in various regions of color space will be more nearly comparable. On the other hand, color differences obtained for the same specimens evaluated in different color-scale systems are not likely to be identical. To avoid confusion, color differences among specimens or the associated tolerances should be compared only when they are obtained for the same color-scale system. There is no simple factor that can be used to convert accurately color differences or color tolerances in one system to difference or tolerance units in another system for all colors of specimens. 5.2x00a0;Color differences calculated in x0394;ECMC or x0394;E00 units are highly recommended for use with color-differences in the range of 0.0 to 5.0 x0394;E*ab units. Both are appropriate for and widely used in industrial and commercial applications including, but not limited to, automobiles, coatings, cosmetics, inks, packaging, paints, plastics, printing, security, and textiles. The Hunter color difference components x0394;LH, x0394;aH, x0394;bH, and their color difference unit x0394;EH, are used by the coil coating and aluminum extrusion coating industries, as well as the customers of these users. They are, therefore, included in Appendix X1 for historical purposes and use. 5.3x00a0;Users of color tolerance equations have found that, in each system, summation of three, vector color-difference components into a single scalar value is very useful for determining whether a specimen color is within a specified tolerance from a standard. However, for control of color in production, it may be necessary to know not only the magnitude of the departure from standard but also the direction of this departure. It is possible to include information on the direction of a small color difference by listing the three instrumentally determined components of the color difference. 5.4x00a0;Selection of color tolerances based on instrumental values should be carefully correlated with a visual appraisal of the acceptability of differences in hue, lightness, and saturation obtained by using Practice D1729. The three tolerance equations given here have been tested extensively against such data for textiles and plastics and have been shown to agree with the visual evaluations to within the experimental uncertainty of the visual judgments. That implies that the equations themselves misclassify a color difference with a ......
信息：ICS：17.180.20 CCS： 发布：2015 实施：
ASTM E805-06 识别材料颜色或色差测量方法的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2006-07-01 实施：
简介： 信息：
ASTM D2244-2015a 计算仪器测量颜色的颜色容差和色差的标准实施规程
简介：5.1x00a0;The original CIE color scales based on tristimulus values X, Y, Z and chromaticity coordinates x, y are not uniform visually. Each subsequent color scale based on CIE values has had weighting factors applied to provide some degree of uniformity so that color differences in various regions of color space will be more nearly comparable. On the other hand, color differences obtained for the same specimens evaluated in different color-scale systems are not likely to be identical. To avoid confusion, color differences among specimens or the associated tolerances should be compared only when they are obtained for the same color-scale system. There is no simple factor that can be used to convert accurately color differences or color tolerances in one system to difference or tolerance units in another system for all colors of specimens. 5.2x00a0;Color differences calculated in x0394;ECMC or x0394;E00 units are highly recommended for use with color-differences in the range of 0.0 to 5.0 x0394;E*ab units. Both are appropriate for and widely used in industrial and commercial applications including, but not limited to, automobiles, coatings, cosmetics, inks, packaging, paints, plastics, printing, security, and textiles. The Hunter color difference components x0394;LH, x0394;aH, x0394;bH, and their color difference unit x0394;EH, are used by the coil coating and aluminum extrusion coating industries, as well as the customers of these users. They are, therefore, included in Appendix X1 for historical purposes and use. 5.3x00a0;Users of color tolerance equations have found that, in each system, summation of three, vector color-difference components into a single scalar value is very useful for determining whether a specimen color is within a specified tolerance from a standard. However, for control of color in production, it may be necessary to know not only the magnitude of the departure from standard but also the direction of this departure. It is possible to include information on the direction of a small color difference by listing the three instrumentally determined components of the color difference. 5.4x00a0;Selection of color tolerances based on instrumental values should be carefully correlated with a visual appraisal of the acceptability of differences in hue, lightness, and saturation obtained by using Practice D1729. The three tolerance equations given here have been tested extensively against such data for textiles and plastics and have been shown to agree with the visual evaluations to within the experimental uncertainty of the visual judgments. That implies that the equations themselves misclassify a color difference with a ......
信息：ICS：17.180.20 CCS： 发布：2015 实施：
ASTM E1347-2006 用三色激励测色法测量颜色和色差的标准试验方法
简介：1.1 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.1.2 Provision is made in this test method for the measurement of color coordinates and color differences by reflected or transmitted light using either a hemispherical optical measuring system, such as an integrating sphere, or a bidirectional optical measuring system, such as annular, circumferential, or uniplanar 45:0 and 0:45 geometry.1.3 Because of the limited absolute accuracy of tristimulus colorimeters, this test method specifies that, when color coordinates are required, the instrument be standardized by use of a standard having similar spectral (color) and geometric characteristics to those of the specimen. This standard is also known as a product standard. The use of a product standard of suitable stability is highly desirable.1.4 Because tristimulus colorimeters do not provide any information about the reflectance or transmittance curves of the specimens, they cannot be used to gain any information about metamerism or paramerism.1.5 Because of the inability of tristimulus (filter) colorimeters to detect metamerism or paramerism of specimens, this test method specifies that, when color differences are required, the two specimens must have similar spectral (color) and geometric characteristics. In this case, the instrument may be standardized for reflectance measurement by use of a white reflectance standard or, for transmittance measurement, with no specimen or standard at the specimen position.1.6 This test method is generally suitable for any non-fluorescent, planar, object-color specimens of all gloss levels. Users must determine whether an instrument complying with this method yields results that are useful to evaluate and characterize retroreflective specimens, or specimens having optical structures.1.7 This test method does not apply to the use of a spectrocolorimeter, which is a spectrometer that provides colorimetric data, but not the underlying spectral data. Measurement by using a spectrocolorimeter is covered in Practice 1164 and methods on color measurement by spectrophotometry.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS： CCS：A26 发布：2006 实施：
简介： 信息：
ASTM D2244-14 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
简介：
信息：ICS：17.180.20 CCS： 发布：2014-05-01 实施：
ASTM D2244-05 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
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信息：ICS：17.180.20 CCS： 发布：2005-10-01 实施：
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ASTM C609-07(2014) 用于测量陶瓷片之间的光反射率值和小色差的标准测试方法
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信息：ICS：91.100.25 CCS： 发布：2014-01-01 实施：
ASTM E1347-03 用三色激励（滤光片）比色法测量颜色和色差的标准试验方法
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信息：ICS：17.180.20 CCS： 发布：2003-07-10 实施：
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ASTM E805-12a 识别材料颜色或色差测量方法的标准实践
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信息：ICS：17.180.20 CCS： 发布：2012-07-01 实施：
ASTM E1347-2003 用三色激励测色法(滤色器)测量颜色和色差的标准试验方法
简介：1.1 This test method describes the instrumental measurement of specimens resulting in color coordinates and color difference values by using a tristimulus (filter) colorimeter, also known as a color-difference meter. This test method does not apply to the use of a spectrocolorimeter, which is a spectrophotometer that is normally capable of producing as output colorimetric data, but not the underlying spectral data from which color coordinates are calculated. Measurement by using a spectrocolorimeter is covered in Practice E 1164 and methods on color measurement by spectrophotometry.1.2 Provision is made in this test method for the measurement of color coordinates and color differences by reflected light using either a hemispherical optical measuring system, such as an integrating sphere, or a bidirectional optical measuring system, such as annular, circumferential, or uniplanar 45/0 or 0/45 geometry. Provision is also made for measurement by transmitted light using a hemispherical optical measuring system.1.3 Because of the limited absolute accuracy of tristimulus (filter) colorimeters, this test method specifies that, when color coordinates are required, the instrument be standardized by use of a standard having similar spectral (color) and geometric characteristics to those of the specimen. The use of a product standard of suitable stability is highly desirable.1.4 Because of the inability of tristimulus (filter) colorimeters to detect metamerism or paramerism, or to correctly measure metameric or parameric pairs of specimens, this test method specifies that, when color differences are required, the two specimens must have similar spectral (color) and geometric characteristics. In this case, the instrument may be standardized for reflectance measurement by use of a white reflectance standard or, for transmittance measurement, with no specimen or standard at the specimen position.1.5 While this test method is generally suitable for all object-color specimens, it should not be used without observing certain restrictions on the geometries and standardization procedures appropriate for different types of specimens and uses, and on the spectral character (metamerism or paramerism) of specimens and standards.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS： CCS：G53 发布：2003 实施：
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ASTM E805-12 识别材料颜色或色差测量方法的标准实践
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信息：ICS：17.180.20 CCS： 发布：2012-02-01 实施：
ASTM D2244-02e1 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
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信息：ICS：17.180.20 CCS： 发布：2002-06-10 实施：
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ASTM E1347-06(2011) 通过三刺激比色法进行颜色和色差测量的标准测试方法
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信息：ICS： CCS： 发布：2011-11-01 实施：
ASTM D2244-02 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
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信息：ICS：17.180.20 CCS： 发布：2002-06-10 实施：
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ASTM D2244-11 用于计算彩色公差和色差与仪器测量颜色坐标的标准实践
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信息：ICS：17.180.20 CCS： 发布：2011-06-01 实施：
ASTM E805-01a 识别材料颜色或色差测量方法的标准实践
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信息：ICS：17.180.20 CCS： 发布：2001-12-10 实施：
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ASTM D2244-2011 仪器测量颜色坐标中允许色差和色差的计算用标准实施规程
简介：The original CIE color scales based on tristimulus values X, Y, Z and chromaticity coordinates x, y are not uniform visually. Each subsequent color scale based on CIE values has had weighting factors applied to provide some degree of uniformity so that color differences in various regions of color space will be more nearly comparable. On the other hand, color differences obtained for the same specimens evaluated in different color-scale systems are not likely to be identical. To avoid confusion, color differences among specimens or the associated tolerances should be compared only when they are obtained for the same color-scale system. There is no simple factor that can be used to convert accurately color differences or color tolerances in one system to difference or tolerance units in another system for all colors of specimens. For uniformity of practice, the CIE recommended in 1976 the use of two color metrics. The CIELAB metric, with its associated color-difference equation, has found wide acceptance in the coatings, plastics, textiles and related industries. While the CIELAB equation has not completely replaced the use of Hunter LH, aH, bH, this older scale is no longer recommended for other than legacy users, and is therefore included in an Appendix for historical purposes. The CIELAB color-difference equation is also not recommended in this practice for use in describing small and moderate color differences (differences with magnitude less than 5.0 x0394; E*ab units). The four more recently defined equations, documented here, are highly recommended for use with color-differences in the range of 0.0 to 5.0 x0394;E*ab units. Users of color tolerance equations have found that, in each system, summation of three, vector color-difference components into a single scalar value is very useful for determining whether a specimen color is within a specified tolerance from a standard. However, for control of color in production, it may be necessary to know not only the magnitude of the departure from standard but also the direction of this departure. It is possible to include information on the direction of a small color difference by listing the three instrumentally determined components of the color difference. Selection of color tolerances based on instrumental values should be carefully correlated with a visual appraisal of the acceptability of differences in hue, lightness, and saturation obtained by using Practice D1729. The three tolerance equations given here have been tested extensively against such data for textiles and plastics and have been shown to agree with the visual evaluations to within the experimental uncertainty of the visual judgments. That implies that the equations themselves misclassify a color difference with a frequency no greater than that of the most experienced visual color matcher. While color difference equations and color tolerance equations are routinely applied to a wide range of illuminants, they have been derived or optimized, or both, for use under daylight illumination. Good correlation with the visual judgments may not be obtained when the calculations are made with other illuminants. Use of a tolerance equation for other than daylight conditions will require visual confirmation of the level of metamerism in accordance with ........
信息：ICS：17.180.20 (Colours and measurement of light) CCS：A26 发布：2011 实施：
ASTM E805-94 识别材料颜色或色差测量方法的标准实践
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信息：ICS：17.180.20 CCS： 发布：2001-12-10 实施：
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