1、BRITISH STANDARD BS ISO 105-A08:2001 Incorporating Corrigendum No. 1 Textiles Tests for colour fastness Part A08: Vocabulary used in colour measurement ICS 01.040.59; 59.080.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO 105-A08:2001 This British Standard, having bee
2、n prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 08-2001 ISBN 0 580 37482 3 National foreword This British Standard reproduces verbatim ISO 105-A08:2001 and imp
3、lements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee TCI/81, Colour fastness and colour measurement, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cro
4、ss-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may
5、be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British St
6、andards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for
7、 change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 5 and a back cover. The BS
8、I copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 13321 Corrigendum No. 1 August 2001 Correction to titleReference number ISO 105-A08:2001(E) INTERNATIONAL STANDARD ISO 105-A08 First edition 2001-04-0
9、1 Textiles Tests for colour fastness Part A08: Vocabulary used in colour measurement Textiles Essais de solidit des teintures Partie A08: Vocabulaire relatif au mesurage de la couleurii ISO 105-A08:2001(E)iii Foreword ISO (the International Organization for Standardization) is a worldwide federation
10、 of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee.
11、International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance wit
12、h the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn t
13、o the possibility that some of the elements of this part of ISO 105 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 105-A08 was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 1, Tes
14、ts for coloured textiles and colorants. ISO 105 was previously published in thirteen “parts”, each designated by a letter (e.g. “Part A”), with publication dates between 1978 and 1985. Each part contained a series of “sections”, each designated by the respective part letter and by a two-digit serial
15、 number (e.g. “Section A01”). These sections are now being republished as separate documents, themselves designated “parts” but retaining their earlier alphanumeric designations. A complete list of these parts is given in ISO 105-A01.INTENRATIONAL TSANDADR ISO -501A:80(1002)E1 Textiles Tests for col
16、our fastness Part A08: Vocabulary used in colour measurement 1 Scope This part of ISO 105 specifies the terms and definitions on colour measurements that are used throughout ISO 105. These definitions are intended to be used only within the context and scope of ISO 105. 2 Terms and definitions 2.1 c
17、hroma attribute of colour used to indicate the degree of departure of the colour from a grey of the same lightness NOTE C* ab is the metric chroma defined in the CIELAB equation. 2.2 CIE 1976, L*, a*, b* colour space CIELAB colour space transform of CIE tristimulus values into an approximately unifo
18、rm, three dimensional, opponent colour space NOTE Its opponent variables are lightness-darkness (L*), redness-greenness (a*) and yellowness-blueness (b*). The last two may be further transformed into those of chroma (C* ab ) and hue (h ab ). 2.3 CIE 1976, L*, a*, b* colour difference CIELAB colour d
19、ifference E* ab Euclidean distance between the points representing a test specimen and its reference specimen in CIELAB colour space 2.4 CIE chromaticity coordinates ratios of each of the members of a set of CIE tristimulus values to their sum NOTE The corresponding symbols are x 10 , y 10 and z 10
20、for X 10 , Y 10 and Z 10 , and x, y and z for X, Y and Z.S i n c e x 10 + y 10 + z 10 = 1 and x + y + z=1,x 10 and y 10 or x and ysuff icetode fi nechro mati city . 2.5 CIE standard observer data relative amounts of three defined colour stimuli required, when mixed additively, by the average observe
21、r to match radiation at each wavelength of the visible spectrum under defined viewing conditions NOTE The CIE defines the 1931 (2) standard colorimetric observer and 1964 (10) supplementary standard colorimetric observer. BSISO105A08:2001 ISO -501A:80(1002)E 2 2.6 CIE standard illuminant data spectr
22、al power distributions of illuminants which the CIE has defined as standard NOTE Those relevant to ISO 105 are designated A (representative of tungsten lighting), C (average daylight) and D 65 (average daylight including the ultraviolet region). The CIE also defines the F series (F1 to F12) of recom
23、mended illuminants representative of various fluorescent discharge lamps. 2.7 CIE tristimulus values amounts of three non-real reference colours required to give a colour match to the colour stimulus considered and defined by the CIE for the CIE 1931 (2) and 1964 supplementary (10) standard colorime
24、tric observers and for particular conditions of illumination NOTE Corresponding symbols are X, Y and Z for the 2 and X 10 , Y 10 and Z 10 for the 10 observers. 2.8 colour change change in colour of any kind, whether in lightness, chroma or hue, or any combination of them, discernible by comparing a
25、test specimen with its corresponding reference specimen 2.9 colorimeter tristimulus colorimeter instrument designed to measure the colour of an object directly in terms of CIE tristimulus values NOTE Applications of colorimeters within ISO 105 are limited. 2.10 colourant chemical substance which is
26、applied to a substrate for the express purpose of changing the reflectance or transmittance of visible light 2.11 E colour-difference evaluation single number defining the total colour difference between a test specimen and its reference specimen NOTE There are many equations for evaluating colour d
27、ifference and the derivation of E is identified by superscript and/or subscript character(s) e.g. E cmc for CMC (Colour Measurement Committee) colour difference and E* ab for CIELAB colour difference. 2.12 depth that colour quality which is primarily associated with an increase in the quantity of co
28、lourant present, all other conditions (substrate, colourant(s), application method and viewing conditions) remaining the same 2.13 fluorescent whitening agent FWA colourant that absorbs near-ultraviolet radiation and emits primarily violet-blue radiation NOTE This causes a yellowish material to whic
29、h it has been applied to appear whiter. This term is preferred to optical brighting agent (OBA). 2.14 grey scale series of neutrally coloured pairs of chips, one pair showing zero contrast and the other pair showing increasing contrast, used in the visual assessment of the contrast between reference
30、 and test specimen pairs (e.g. in fastness testing) for the purpose of assigning a numerical rating BSISO105A08:2001 ISO -501A:80(1002)E3 NOTE There are, in common use, two types of grey scales, one for assessing change in colour (see ISO 105-A02) and another for assessing degree of staining (see IS
31、O 105-A03). 2.15 hue attribute of a visual sensation by which the colour of a specimen is judged to be similar to one of the perceived colours, red, yellow, green or blue, or to a combination of two of them 2.16 infrared radiation IR radiation radiant energy for which the wavelengths of the monochro
32、matic components are longer than those for visible radiation and less than about 1 mm NOTE The limits of the spectral range of infrared radiation are not well defined and may vary according to the application. Committee E-2.1.2 of the CIE distinguishes in the spectral range between 780 nm and 1 mm:
33、IR-A: 780 nm to 1400 nm IR-B: 1,4 mto3 ,0 m IR-C: 3,0 mt o1m m 2.17 lightness attribute of colour perception by which a non-self-luminous body is judged to reflect more or less light NOTE L* ab is the metric lightness defined in the CIELAB equation. 2.18 perfect reflecting diffuser hypothetical mate
34、rial perfectly diffusely reflecting 100 % of visible radiation striking it NOTE The perfect reflecting diffuser is the basis of calibration of reflectance-measuring instruments. 2.19 photochromism qualitative designation for a reversible (or at least partially reversible) change in colour of any kin
35、d (whether a change in lightness, hue or chroma) which is immediately noticeable upon termination of light exposures when the exposed area of a specimen is compared to the unexposed area NOTE A non-preferred synonym is phototropism. 2.20 semi-axes lS L , cS C , S H individual dimensions of the CMC e
36、llipsoid which are used to calculate a E cmc(l:c) value NOTE The variables l and c quantify the tolerances for lightness differences and chroma differences, relative to hue differences. 2.21 spectral power distribution SPD distribution by wavelength of radiation emitted from a source or modelled by
37、an illuminant over the relevant wavelength span of radiation 2.22 spectral reflectance the fraction (0 to 1) or percentage (0 to 100) of incident radiation reflected by a given material (and neither absorbed nor transmitted by it) as a function of wavelength BSISO105A08:2001 ISO -501A:80(1002)E 4 2.
38、23 spectral transmittance the fraction (0 to 1) or percentage (0 to 100) of incident radiation passing through a given material (and neither absorbed nor reflected by it) as a function of wavelength 2.24 spectrophotometer instrument for measuring the reflectance or transmittance of light (or other r
39、adiation) by an object at one or more wavelengths in the spectrum 2.25 standard depth scale one of a number of sets of coloured standards, the members of each of which are of different brightness and hue but have been accepted as being of equal depth and which enable dyeing, fastness and other prope
40、rties of colourants to be compared on a uniform basis NOTE The series in most frequent use in textile applications are designated 1/25, 1/12, 1/3, 1/1 and 2/1 standard depths (where each given multiple expresses the relationship of the depth of the series to 1/1 standard depth), and the navy and bla
41、ck standard depth series. 2.26 tinctorial strength effectiveness of a given mass of colourant in colouring a given mass of given material by means of a given application process 2.27 ultraviolet (UV) radiation radiant energy for which the wavelengths of the monochromatic components are shorter than
42、those for visible radiation and more than about 100 nm NOTE The limits of the spectral range of ultraviolet radiation are not well defined and may vary according to the application. Committee E-2.1.2 of the CIE distinguishes in the spectral range between 100 nm and 400 nm: UV-A: 315 nm to 400 nm UV-
43、B: 280 nm to 315 nm UV-C: 100 nm to 280 nm 2.28 visible radiation any radiation capable of causing a visual sensation NOTE 1 The limits of the spectral range of visible radiation are not well defined and may vary according to the application. The lower limit is generally taken to be between 380 nm a
44、nd 400 nm and the upper limit to be between 700 nm and 780 nm. NOTE 2 The CIE defines colour-matching functions for the 2 and 10 observers for the wavelength range of 380 nm to 780 nm. 2.29 whiteness attribute of colour perception by which an object colour is judged to approach a preferred white BSI
45、SO105A08:2001 ISO -501A:80(1002)E5 Bibliography 1 ISO 105-A01, Textiles Tests for colour fastness Part A01: General principles of testing. 2 ISO 105-A02, Textiles Tests for colour fastness Part A02: Grey scale for assessing change in colour. 3 ISO 105-A03, Textiles Tests for colour fastness Part A03
46、: Grey scale for assessing staining. BSISO105A08:2001 BS ISO 105-A08:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the internation
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