prEN ISO 12625-17

SLOVENSKI STANDARD
oSIST prEN ISO 12625-17:2020
01-april-2020

Tissue papir in proizvodi iz tissue papirja - 17. del: Določanje razvlaknjevanja v

Tissue paper and tissue products - Part 17: Determination of disintegration in water

Tissue-Papier und Tissue-Produkte - Teil 17: Bestimmung der Desintegration in Wasser

Papier tissue et produits tissue - Partie 17: Détermination de la désintégration dans l’eau

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Reactants ...................................................................................................................................................................................................................... 2

6 Apparatus ..................................................................................................................................................................................................................... 2

7 Conditioning of test pieces ......................................................................................................................................................................... 2

8 Preparation of test pieces ........................................................................................................................................................................... 2

8.1 General ........................................................................................................................................................................................................... 2

8.2 Accelerated ageing (optional) .................................................................................................................................................... 3

8.3 Mass .................................................................................................................................................................................................................. 3

9 Test procedure ........................................................................................................................................................................................................ 3

9.1 General ........................................................................................................................................................................................................... 3

9.2 Test at 30 s .................................................................................................................................................................................................. 4

9.3 Test at 2 min and 10 min ................................................................................................................................................................ 5

10 Calculation and expression of the results .................................................................................................................................. 5

11 Test report ................................................................................................................................................................................................................... 5

Annex A (normative) Technical description of the propeller ..................................................................................................... 7

Annex B (informative) Examples and pictures of types of shower heads and sieve ...........................................9

Annex C (informative) Additional agitation time periods ...........................................................................................................11

Annex D (informative) Precision data ..............................................................................................................................................................12

Bibliography .............................................................................................................................................................................................................................14

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This document was prepared by Technical Committee ISO/TC 6 Paper, board and pulps, Subcommittee

Any feedback or questions on this document should be directed to the user’s national standards body. A

This document describes a test method to determine the disintegration in water for tissue paper and

This document specifies a method to assess the disintegration of tissue paper and tissue products when

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 187, Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for

ISO 638, Paper, board and pulps — Determination of dry matter content — Oven-drying method

ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth

ISO 3310-2, Test sieves — Technical requirements and testing — Part 2: Test sieves of perforated metal plate

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

process that is characterized by a material breaking into small pieces in water under specified

A test piece of tissue paper or tissue product is placed in a beaker and is agitated in water using an

impeller rotating at a constant speed for time durations of 30 s, 2 min and 10 min. After agitation,

the beaker contents are poured into a calibrated sieve, and if there are remains on the sieve, they

are collected and analysed gravimetrically to determine the percentages of disintegration after each

5.1 Deionized water at 23 °C ± 0,5 °C, with a conductivity ≤ 0,25 mS/m at 25 °C, in accordance with

6.1 Transparent beaker with a flat bottom, internal diameter 98 mm ± 5 mm, total height 150 mm.

6.2 Graduated cylinder, beaker, or other suitable container, having enough capacity to accurately

6.4 Agitating device with a rotation speed of 800 r/min ± 20 r/min, equipped with a

polytetrafluoroethylene (PTFE) screw-propeller. The technical description of the propeller is given in

6.5 Stainless-steel test sieve, compliant with ISO 3310-2, 200 mm dia. x 50 mm H, with perforated

NOTE Example and picture of typical, suitable and commercially available sieve is given in Annex B (Retsch

brand Stainless-Steel Test Sieve, 200mm diameter, with perforated plates with round holes 12.5 mm diameter.

6.6 Drying oven capable of maintaining a constant air temperature of 105 °C ± 2 °C, suitably ventilated,

and capable of maintaining 80 °C ± 2 °C when test pieces are submitted to accelerated ageing.

6.11 Shower head of diameter 70 mm ± 5 mm, having 50 ± 5 holes of diameter 1,0 mm ± 0,2 mm.

attached to a faucet (tap) with a regulator adjusted to deliver 4,0 l/min ± 0,5 l/min.

NOTE Examples and pictures of typical, suitable and commercially available shower head types are given in

Conditioning shall be done prior to the preparation of test pieces, according to ISO 187.

If the tests are being made to evaluate a lot, the sample shall be selected in accordance with ISO 186.