ISO 302:2015
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Pulps Determination of Kappa number
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24-07-2015
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ISO 302:2015 specifies a method for the determination of the Kappa number of pulp. The Kappa number is an indication of the lignin content or bleachability of pulp.
ISO 302:2015 is applicable to all kinds of chemical pulps and semi-chemical pulps within the Kappa number range 1 to 100. For pulps with a Kappa number exceeding 100, use the chlorine-consumption procedure (ISO 3260) to describe the degree of delignification.
To achieve the greatest precision and accuracy, the sample size has to be adjusted so that the consumption of permanganate falls between 20 % and 60 % of the amount added.
NOTE There is no general and unambiguous relationship between the Kappa number and the lignin content of pulp. The relationship varies according to the wood species and delignification procedure. All compounds oxidized by KMnO4, not only lignin, will increase the consumption of KMnO4, and thereby increase the Kappa number.[8] If the Kappa number is to be used to derive an index of pulp lignin content, specific relationships will have to be developed for each pulp type.
| DevelopmentNote |
Supersedes ISO/DIS 302. (07/2015)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| UNI ISO 302:2015 | Identical |
| BS ISO 302:2015 | Identical |
| NEN ISO 302 : 2015 | Identical |
| UNI ISO 302 : 2005 | Identical |
| NF ISO 302 : 1987 | Identical |
| NFT 12 018 : 1980 | Identical |
| UNE 57034:1991 | Identical |
| UNE-ISO 302:2013 | Identical |
| UNE-ISO 302:2021 | Identical |
| DIN ISO 18902:2010-05 | IMAGING MATERIALS - PROCESSED IMAGING MATERIALS - ALBUMS, FRAMING AND STORAGE MATERIALS |
| 06/30146053 DC : DRAFT FEB 2006 | ISO 18902 - IMAGING MATERIALS - PROCESSED IMAGING MATERIALS - ALBUMS, FRAMING, AND STORAGE MATERIALS |
| UNI ISO 11108 : 2011 | INFORMATION AND DOCUMENTATION - ARCHIVAL PAPER - REQUIREMENTS FOR PERMANENCE AND DURABILITY |
| CAN/CSA-Z5100-17 | Cellulose nanomaterials - Test methods for characterization |
| BS ISO 11108:1996 | Information and documentation. Archival paper. Requirements for permanence and durability |
| 12/30257222 DC : 0 | BS ISO 18902 - IMAGING MATERIALS - PROCESSED IMAGING MATERIALS - ALBUMS, FRAMING AND STORAGE MATERIALS |
| ISO 11800:1998 | Information and documentation — Requirements for binding materials and methods used in the manufacture of books |
| BS ISO 11800:1998 | Information and documentation. Requirements for binding materials and methods used in the manufacture of books |
| BS ISO 18902:2013 | Imaging materials. Processed imaging materials. Albums, framing and storage materials |
| BS ISO 4046-5:2016 | Paper, board, pulps and related terms. Vocabulary Properties of pulp, paper and board |
| ISO 11108:1996 | Information and documentation — Archival paper — Requirements for permanence and durability |
| ISO 4046-5:2002 | Paper, board, pulps and related terms Vocabulary Part 5: Properties of pulp, paper and board |
| DIN EN ISO 9706:2010-02 | Information and documentation - Paper for documents - Requirements for permanence (ISO 9706:1994) |
| TAPPI T 236 : 2013 | KAPPA NUMBER OF PULP |
| UNI ISO 11800 : 2011 | INFORMATION AND DOCUMENTATION - REQUIREMENTS FOR BINDING MATERIALS AND METHODS USED IN THE MANUFACTURE OF BOOKS |
| BS EN ISO 9706:2000 | Information and documentation. Paper for documents. Requirements for permanence |
| ISO 9706:1994 | Information and documentation — Paper for documents — Requirements for permanence |
| EN ISO 9706:1998 | Information and documentation - Paper for documents - Requirements for permanence (ISO 9706:1994) |
| BS ISO 9706 : 94 AMD 10518 | INFORMATION AND DOCUMENTATION - PAPER FOR DOCUMENTS - REQUIREMENTS FOR PERMANENCE |
| CSA Z5100/Z5200 PACKAGE : 2017 | CONSISTS OF Z5100-17, CELLULOSE NANOMATERIALS - TEST METHODS FOR CHARACTERIZATION AND Z5200-17, CELLULOSE NANOMATERIALS - BLANK DETAIL SPECIFICATION |
| ISO 18902:2013 | Imaging materials — Processed imaging materials — Albums, framing and storage materials |
| NFZ 40 014 : 2011 | INFORMATION AND DOCUMENTATION - REQUIREMENTS AND CRITERIA FOR THE SELECTION OF PAPER AND BOARDS FOR THE STORAGE OF PAPER AND PARCHMENT DOCUMENTS |
| ISO 638:2008 | Paper, board and pulps Determination of dry matter content Oven-drying method |
| ISO/TR 24498:2006 | Paper, board and pulps Estimation of uncertainty for test methods |
| ISO 3260:2015 | Pulps Determination of chlorine consumption (Degree of delignification) |
| ISO 7213:1981 | Pulps Sampling for testing |
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