A26 颜色 标准查询与下载



共找到 247 条与 颜色 相关的标准,共 17

Colorimetry. CIEDE2000 Colour-difference formula

ICS
17.180.20
CCS
A26
发布
2014-02-28
实施
2014-02-28

Specification For Color and Appearance Retention of Solid and Variegated Color 2 Plastic Siding Products using CIELab Color Space

ICS
01.070;83.080.01
CCS
A26
发布
2014
实施

이 표준은 2도 시야 XYZ 색 표시계1)(이하 XYZ 색 표시계라고 한다.) 및 10도 시야 X10Y10Z10 색 표시계2)(이하 X10Y10Z10 색 표시계라고 한다.)에 따라 태양광과 같은 자연조명, 인공조명 및 발광형 디스플레이 기기 등과 같은 광원으로부터 방출되는 빛의 색을 측정하는 데 적용한다. 덧붙여, 이 표준은 광원으로부터 방출되는 빛의 가시광선 영역(380 nm∼780 nm) 상대분광분포를 측정하는 방법을기술하고 있으며, 이를 물체색의 삼자극치 계산 시 이용하는 조명광의 상대분광분포 측정에 적용할수 있다.

Methods of colour measurement for light sources

ICS
17.180.20
CCS
A26
发布
2013/12/31
实施
2013/12/31

이 표준은 표면색(이하 색이라 한다.)의 색감각의 3속성(색상, 명도, 채도)을 따라서 표시하는 방법에대하여 규정한다. 다만, 형광을 발하는 물체의 색은 적용하지 않는다.

Colour specification ? Specification according to their three attributes

ICS
17.180.20
CCS
A26
发布
2013-12-31
实施
2013/12/31

Colorimetry - Part 3: CIE tristimulus values (ISO 11664-3:2012); German version EN ISO 11664-3:2013

ICS
17.180.20
CCS
A26
发布
2013-08
实施

Diese CIE-Norm legt Verfahren zur Berechnung von Farbwerten aus Farbreizen, fur die die Spektralverteilungen gegeben sind, fest. Diese Farbreize konnen von selbstleuchtenden Lichtquellen oder durch reflektierende oder transmittierende Objekte erzeugt werden. Die Norm erfordert, dass die Farbreizfunktion in Messintervallen von 5 nm oder weniger in einem Wellenlangenbereich von mindestens 380 nm bis 780 nm tabelliert wird. Fur Falle, bei denen der gemessene Wellenlangenbereich kleiner als 380 nm bis 780 nm ist, werden Extrapolationsverfahren vorgeschlagen. Das Normverfahren wird als Summierung bei Intervallen von 1 nm uber den Wellenlangenbereich von 360 nm bis 830 nm definiert. Fur grosere Intervalle (bis zu 5 nm) und kleinere Bereiche (bis auf 380 nm bis 780 nm) werden Kurzverfahren definiert. Die alternativen Verfahren sind nur dann anzuwenden, wenn sie geeignet sind und der Anwender die Auswirkung auf die Endergebnisse uberpruft hat. Die Norm darf zusammen mit dem farbmetrischen Normalbeobachter CIE 1931 oder dem farbmetrischen Normalbeobachter CIE 1964 angewendet werden.

Colorimetry - Part 3: CIE tristimulus values

ICS
17.180.20
CCS
A26
发布
2013-05-01
实施
2013-05-01

Three-digit-code for designation of colour rendering and correlated colour temperature; Corrigendum 1

ICS
17.180.20
CCS
A26
发布
2012-12
实施

Colorimetry - Part 1: CIE standard colorimetric observers (ISO 11664-1:2007); German version EN ISO 11664-1:2011, Corrigendum to DIN EN ISO 11664-1:2011-07

ICS
17.180.20
CCS
A26
发布
2012-11
实施

Color - Colorimetry - Standards of colors by reflexion - Specifications and use.

ICS
CCS
A26
发布
2012-09-01
实施
2012-09-01

Colorimetry - Part 4: CIE 1976 L*a*b* Colour space (ISO 11664-4:2008); German version EN ISO 11664-4:2011

ICS
17.180.20
CCS
A26
发布
2012-06-01
实施

This Standard Practice deals only with simplified color indices applicable specifically to white colors. There are approximately 5000 distinguishable white colors. As with any other color, three numbers are necessary for the complete identification of any white. All the color and color difference scales regularly used for color specification are applicable to white colors.

Indices for whiteness, yellowness, brightness, and luminous reflectance factor

ICS
17.180.20;85.060
CCS
A26
发布
2012
实施

The total perceived color difference between two non-self luminous specimens is compared as an equivalent lightness difference between two neutral gray specimens on a gray scale. A fundamental assumption is made that the total color difference can be so evaluated in terms of an equivalent lightness difference. Only the total color differences, that is, a summation of the differences in hue, lightness, and chroma between two specimens is evaluated; this test method is not applicable to the separate precise evaluation of the hue, lightness, and chroma components of color difference. The total color difference determined by this test method depends on the degree of uniformity of the specimens and on the sharpness of the dividing line between them. The color difference between specimens having rough or mottled surfaces appears smaller than it would if the specimens had smooth and uniform surfaces. Thus the equivalent CIELAB lightness difference determined for non-uniform specimens will be smaller than for uniform specimens. Likewise, specimens whose dividing line is not sharp will appear to have smaller color differences than those with sharp dividing lines, and for this reason, the equivalent visually observed CIELAB lightness differences will be smaller than the color differences obtained from instrumental measurements. A physically sharp border between colors differing slightly in the yellow-blue direction in color space appears diffuse. The perceived color difference is noticeably increased by a hairline black separation. This technique imposes a more rigorous test of such small differences. In the CIELAB system, a unit of color difference is intended to represent the same visual difference in each of the three attributes; lightness, hue and chroma or alternatively lightness, redness-greeness, yellowness-blueness. It is valid to express color differences that are not simply lightness differences by comparison to a lightness-difference scale. Personnel to be employed in the evaluation of color differences with the paired gray scale should be tested for color vision using the procedures in Guide E1499. TABLE 1 Gray Scale Characteristics AATCC Step DesignationsCIELAB (ΔE*) Color DifferenceTolerance(±) 5.0 0.00.2 4.5 0.80.2 4.0 1.70.3 3.5 2.50.3 3.0 3.40.4 2.5 4.80.5 2.0 6.80.6 1.5 9.60.7 1.0

Standard Test Method for Evaluation of Visual Color Difference With a Gray Scale

ICS
17.180.20 (Colours and measurement of light)
CCS
A26
发布
2012
实施

This practice is used by artists, designers, scientists, engineers, and government regulators, to specify an existing or desired color. It is used in the natural sciences to record the colors of specimens, or identify specimens, such as human complexion, flowers, foliage, soils, and minerals. It is used to specify colors for commerce and for control of color-production processes, when instrumental color measurement is not economical. The Munsell system is widely used for color tolerancing, even when instrumentation is employed (see Practice D3134). It is common practice to have color chips made to illustrate an aim color and the just tolerable deviations from that color in hue, value, and chroma, such a set of chips being called a Color Tolerance Set. A color tolerance set exhibits the aim color and color tolerances so that everyone involved in the selection, production, and acceptance of the color can directly perceive the intent of the specification, before bidding to supply the color or starting production. A color tolerance set may be measured to establish instrumental tolerances. Without extensive experience, it may be impossible to visualize the meaning of numbers resulting from color measurement, but by this practice, the numbers can be translated to the Munsell color-order system, which is exemplified by colored chips for visual examination. This color-order system is the basis of the ISCC-NBS Method of Designating Colors and a Dictionary of Color Names, as well as the Universal Color Language, which associates color names, in the English language, with Munsell notations (3).1.1 This practice provides a means of specifying the colors of objects in terms of the Munsell color order system, a system based on the color-perception attributes hue, lightness, and chroma. The practice is limited to opaque objects, such as painted surfaces viewed in daylight by an observer having normal color vision. This practice provides a simple visual method as an alternative to the more precise and more complex method based on spectrophotometry and the CIE system (see Practices E308 and E1164). Provision is made for conversion of CIE data to Munsell notation. 1.2 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.

Standard Practice for Specifying Color by the Munsell System

ICS
17.180.20 (Colours and measurement of light); 87.0
CCS
A26
发布
2012
实施

The options available in methods for the measurement of color or color-difference are many. These involve choices in: (1) specimens, (2) geometric and spectral properties of instruments, (3) calibration bases for standards used, (4) procedure for sample handling including conditioning, (5) procedure for taking data, and (6) equations for converting instrumental data to final results. Once the measurements have been made, it is essential to document what has been done for the purpose of interlaboratory comparisons, or for future use. A sample form is provided in Fig. 1 to record identifying information applicable to any instrumental method of color or color-difference measurement. Refer to Guide E179, Practices E991, E1164, E1345, E1708, E1767, E2152, and E2194 and Test Methods D5386, D6166, E1247, E1331, E1347, E1348, and E1349, for specific details of measurements.1.1 This practice covers the documentation of instrumental measurement of color or color difference for current communication or for future reference. The practice is applicable to instrumental measurements of materials where color is seen by reflected, transmitted or emitted light and any combinations of one or more of these processes. The practice is recommended for documentation of methodology in interlaboratory color-measurement programs. 1.2 An adequate identification of an instrumental measure of color or color-difference consists of five parts: 1.2.1 Nature and source of available samples and the form of specimens actually measured, 1.2.2 Instrumental conditions of measurement, including instrument geometrical and spectral conditions of measurement, 1.2.3 Standards used, 1.2.4 Data acquisition procedure, and 1.2.5 Color scales employed. 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 whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. FIG. 1 Sample Report Form

Standard Practice for Identification of Instrumental Methods of Color or Color-Difference Measurement of Materials

ICS
17.180.20 (Colours and measurement of light)
CCS
A26
发布
2012
实施

This International Standard specifies two illuminants for use in colorimetry. a) CIE standard illuminant A This is intended to represent typical, domestic, tungsten-filament lighting. Its relative spectral power distribution is that of a Planckian radiator at a temperature of approximately 2856 K. CIE standard illuminant A should be used in all applications of colorimetry involving the use of incandescent lighting, unless there are specific reasons for using a different illuminant. b) CIE standard illuminant D65 This is intended to represent average daylight and has a correlated colour temperature of approximately 6500 K. CIE standard illuminant D65 should be used in all colorimetric calculations requiring representative daylight, unless there are specific reasons for using a different illuminant. Variations in the relative spectral power distribution of daylight are known to occur, particularly in the ultraviolet spectral region, as a function of season, time of day, and geographic location. However, CIE standard illuminant D65 should be used pending the availability of additional information on these variations. Values for the relative spectral power distribution of CIE standard illuminants A and D65 are given in Table 1 of this International Standard. Values are given at 1 nm intervals from 300 nm to 830 nm. The term "illuminant" refers to a defined spectral power distribution, not necessarily realizable or provided by an artificial source. Illuminants are used in colorimetry to compute the tristimulus values of reflected or transmitted object colours under specified conditions of illumination. The CIE has also defined illuminant C and other illuminants D. These illuminants are described in Publication CIE 15:2004 but they do not have the status of primary CIE standards accorded to the CIE standard illuminants A and D65 described in this International Standard.

Colorimetry - Part 2: CIE standard illuminants (ISO 11664-2:2007); German version EN 11664-2:2011

ICS
17.180.20
CCS
A26
发布
2011-07
实施

This International Standard specifies colour-matching functions for use in colorimetry. Two sets of colour-matching functions are specified. a) Colour-matching functions for the CIE 1931 standard colorimetric observer This set of colour-matching functions is representative of the colour-matching properties of observers with normal colour vision for visual field sizes of angular subtense from about 1° to about 4°, for vision at photopic levels of adaptation. b) Colour-matching functions for the CIE 1964 standard colorimetric observer This set of colour-matching functions is representative of the colour-matching properties of observers with normal colour vision for visual field sizes of angular subtense greater than about 4°, for vision at sufficiently high photopic levels and with spectral power distributions such that no participation of the rod receptors of the retina is to be expected.

Colorimetry - Part 1: CIE standard colorimetric observers (ISO 11664-1:2007); German version EN ISO 11664-1:2011

ICS
17.180.20
CCS
A26
发布
2011-07
实施

This CIE Standard specifies the method of calculating the coordinates of the CIE 1976 L*u*v*colour space including correlates of lightness, chroma, saturation and hue. It includes two methods for calculating Euclidean distances in this space to represent the relative perceived magnitude of colour differences. It also specifies the method of calculating the coordinates of the u',v' uniform chromaticity scale diagram. The Standard is applicable to tristimulus values calculated using the colour-matchingfunctions of the CIE 1931 standard colorimetric system or the CIE 1964 standard colorimetric system. The Standard may be used for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object, where a three-dimensional space more uniform than tristimulus space is required. This includes self-luminous displays, like cathode ray tubes, if they are being used to simulate reflecting or transmitting objects and if the stimuli are appropriately normalized. The Standard, as a whole, does not apply to colour stimuli perceived as belonging to an area that appears to be emitting light as a primary light source, or that appears to be specularly reflecting such light. Only the u',v' chromaticity diagram defined in Section 4.1 and the correlates of hue and saturation defined in Section 4.3 apply to such colour stimuli.

Colorimetry - Part 5: CIE 1976 L*u*v* Colour space and u', v' uniform chromaticity scale diagram (ISO 11664-5:2009); German version EN ISO 11664-5:2011

ICS
17.180.20
CCS
A26
发布
2011-07
实施

This CIE Standard specifies the method of calculating the coordinates of the CIE 1976 Labcolour space including correlates of lightness, chroma and hue. It includes two methods for calculating Euclidean distances in this space to represent the perceived magnitude of colour differences. The Standard is applicable to tristimulus values calculated using colour-matching functions of the CIE 1931 standard colorimetric system or the CIE 1964 standard colorimetric system. The Standard may be used for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object, where a three-dimensional space more uniform than tristimulus space is required. It does not apply to colour stimuli perceived as belonging to an area that appears to be emitting light as a primary light source, or that appears to be specularly reflecting such light. This Standard does apply to self-luminous displays, like cathode ray tubes, if they are being used to simulate reflecting or transmitting objects and if the stimuli are appropriately normalized.

Colorimetry - Part 4: CIE 1976 L*a*b* Colour space (ISO 11664-4:2008); German version EN ISO 11664-4:2011

ICS
17.180.20
CCS
A26
发布
2011-07
实施

The most direct and accessible methods for obtaining the color coordinates of object colors 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 transmittance spectrophotometry using a hemispherical optical measuring system. This test method is especially suitable for measurement of the following types of specimens (see also Guide E179 and Practice E805): Fully transparent specimens (free from turbidity, haze, or translucency), and Translucent or hazy specimens, provided that the specimen can be placed flush against the transmission port of the integrating sphere. This test method is not recommended for measurement of retroreflective transparent or translucent specimens, or samples that are fluorescent.1.1 This test method describes the instrumental measurement of the transmission properties and color of object-color specimens by the use of a spectrophotometer or spectrocolorimeter with a hemispherical optical measuring system, such as an integrating sphere. 1.2 This test method is generally suitable for all fully transparent specimens without regard for the specimen position relative to the transmission port of the instrument. Translucent specimens, however, must be placed flush against the transmission port of the sphere. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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.

Standard Test Method for Transmittance and Color by Spectrophotometry Using Hemispherical Geometry

ICS
17.180.20
CCS
A26
发布
2011
实施

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 Δ 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 ΔE*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 ........

Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates

ICS
17.180.20 (Colours and measurement of light)
CCS
A26
发布
2011
实施



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