IS 1060 : Part 5 : Sec 19 : 2024/ISO 11476 : 2016 Methods of Sampling and Test for Paper and Allied Products - Part 5 Methods of Test for Paper and Board - Section 19 Determination of CIE whiteness, C/2° (Indoor Illumination Conditions)
NATIONAL FOREWORD
This Indian Standard (Part 5/Sec 19) (First Revision) which is identical to ISO 11476 : 2016 'Paper and board - Determination of CIE Whiteness, C/2° (indoor illumination conditions)' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Paper and its Products Sectional Committee and approval of the Chemical Division Council.
ISO has published relevant test method standards under the three broad based titles namely 'Paper, board and pulps', 'Paper and board' and 'Pulps' under which most of the test methods are published. To maintain consistency with the prevailing international practice and also to facilitate search of the relevant test methods instantly, all adopted standards are published under the following two series;
a) IS 1060 series on 'Methods of sampling and test for paper and allied products', and
Part 4 Methods of test for paper, board and pulp
Part 5 Methods of test for paper and board
Part 6 Methods of test for paper
Part 7 Methods of test for board
b) IS 6213 series for 'Methods of test for pulps'. This standard was originally published under single numbering as IS/ISO 11476 : 2000 'Paper and board - Determination of CIE Whiteness, C/2° (indoor illumination conditions)'.
Consequent upon publication of 2010 version of ISO Standard and keeping the above in view, in 2014, the Committee decided to revise this standard by identical adoption of ISO 11476 : 2010, 'Paper and board - Determination of CIE Whiteness, C/2° (indoor illumination conditions)', under dual numbering and to publish it under IS 1060 (Part 5).
During this revision, considering that 2014 version of this standard was identical adoption of ISO 11476 : 2010, the Committee decided to further revise this standard by aligning it with ISO 11476 : 2016, under dual numbering. During this revision, the standard allows for calculations using ASTM E308 for instruments that have bandpass correction and still maintain the non-bandpasscorrection procedure.
The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are however not identical to those used in Indian Standards. Attention is particularly drawn to the following:
a) Wherever the words 'International Standard' appear referring to this standard, they should be read as 'Indian Standard'; and
b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.