IS 1060 : Part 8 : Sec 3 : 2025/ISO 12830 : 2019 Methods of Sampling and Test for Paper and Allied Products - Part 8 Methods of Test for Paper, Board, Pulps and Cellulose Nanomaterials - Section 3 Determination of Acid-Soluble Magnesium, Calcium, Manganese, Iron, Copper, Sodium and Potassium

ICS 85.040; 85.060

CHD 15

[Superseding IS 1060 (Part 4/Sec 11) : 2014]

NATIONAL FOREWORD

This Indian Standard (Part 8/Sec 3) which is identical to ISO 12830 : 2019 'Paper, board, pulps and cellulose nanomaterials - Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium' 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.

Presence of different elements such as calcium, manganese, iron, copper, sodium, etc. affects the quality and performance characteristics of the paper, pulp and boards. It is therefore essential to standardize the methods of quantification of such elements in paper, board, pulp and cellulosic nanomaterials.

ISO has published test method standards related to paper, pulp and board under three broad categories namely 'Paper, board and pulps', 'Paper and board' and 'Pulps'. Related Indian Standards published in IS 1060 (Parts 1, 2 and 3) 'Methods of sampling and test for paper and allied products' and IS 6213 series of standards published for 'Methods of test for pulps' are widely recognized and used in India. To maintain consistency with the prevailing international practices and to retain the existing test methods series, the committee responsible for formulating this standard decided to harmonize the methods of tests prescribed in IS 1060 series and IS 6213 series with those published by ISO and publish these adopted test methods standards in subsequent parts/sections of IS 1060 series or IS 6213 series.

Related Indian Standards on methods of test have been published in the following other parts of IS 1060 series on 'Methods of sampling and test for paper and allied products':

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

Part 8 Methods of test for paper, board, pulps and cellulose nanomaterials

This standard is being published as Part 8 'Methods of test for paper, board, pulps and cellulose nanomaterials' of IS 1060 series. This Section of IS 1060 (Part 8) describes the determination of acidsoluble magnesium, calcium, manganese, iron, copper, sodium and potassium in all types of paper, board, pulp and cellulose nanomaterials samples. The other sections of IS 1060 (Part 8) are:

Sec 1 Determination of residue (ash content) on ignition at 525 °C

Sec 2 Determination of residue (ash content) on ignition at 900 °C

Sec 4 Determination of dry matter content by oven-drying method - Materials in solid form

Sec 5 Determination of dry matter content by oven-drying method - Suspensions of cellulosic nanomaterials

This test method was first published as IS 1060 (Part 4/Sec 11) in 2014 by identical adoption of ISO 12830 : 2011, prescribing the methods of test for determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium in paper, board and pulp.

The relevant conventional methods of test have also been published in the following parts of IS 6213 series and updated from time to time:

Part 12 Determination of calcium content

Part 13 Determination of copper content

Part 14 Determination of iron content

Part 15 Determination of manganese content

During the formulation and revision of above parts of IS 6213 series due weightage was given to then existing ISO Standards.

ISO has further revised the standard in 2019 expanding the title and scope to cover cellulose nanomaterials as well. Recognizing the benefits of following uniform practices globally, the committee responsible for formulation of this standard, has decided to adopt latest version of ISO 12830 and publish it as part of IS 1060 (Part 8) series, which provides methods of test for paper, board, pulps and cellulose nanomaterials. This standard supersedes the IS 1060 (Part 4/Sec 11) : 2014 'Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium'.

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.