ISO/PRF 616

Coke -- Determination of shatter indices

Coke -- Détermination des indices de chute

General Information

• Status: Published
• ICS: 75.160.10 - Solid fuels
• Technical Committee: ISO/TC 27/SC 3 - Coke
• Drafting Committee: ISO/TC 27/SC 3 - Coke
• Current Stage: 4099 - Full report circulated: DIS approved for registration as FDIS
• Start Date: 25-Jun-2021

RELATIONS

• Revised: ISO 616:1995 - Coke -- Determination of shatter indices
• Effective Date: 23-Apr-2020

Standards Content (sample)

INTERNATIONAL ISO
STANDARD 616
Third edition
Coke — Determination of shatter
indices
Coke — Détermination des indices de chute
PROOF/ÉPREUVE
Reference number
ISO 616:2021(E)
ISO 2021
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ISO 616:2021(E)
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ISO 616:2021(E)
Contents Page

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

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

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

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

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

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

5 Apparatus ..................................................................................................................................................................................................................... 1

6 Sampling and size analysis ......................................................................................................................................................................... 3

7 Preparation of test portion ........................................................................................................................................................................ 3

8 Procedure..................................................................................................................................................................................................................... 4

8.1 Determination ......................................................................................................................................................................................... 4

8.2 Validity of determination ............................................................................................................................................................... 4

9 Expression of results ........................................................................................................................................................................................ 4

10 Precision ....................................................................................................................................................................................................................... 5

10.1 General ........................................................................................................................................................................................................... 5

10.2 Repeatability limit ................................................................................................................................................................................ 5

10.3 Reproducibility ....................................................................................................................................................................................... 5

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

© ISO 2021 – All rights reserved PROOF/ÉPREUVE iii
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ISO 616:2021(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation 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. 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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 27, Coal and coke, Subcommittee SC 3,

Coke.

This third edition cancels and replaces the second edition (ISO 616:1995), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— general and technical revision;
— inclusion of references to ISO 13909-6 and ISO 18283 in Clause 6;

— provision of an example of an apparatus and a modernized mechanism that can raise the sample box

to the standard height is permitted.

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

complete listing of these bodies can be found at www .iso .org/ members .html.
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ISO 616:2021(E)
Introduction

The shatter index of coke is the percentage of test sample (initially plus 63 mm) that remains on a test

sieve of stated size of openings after the sample has been subjected to a specified dropping test.

The shatter index of coke can be determined for one test sieve or for each of a number of test sieves of

different sizes of holes (e.g. 80 mm and 40 mm). The higher the shatter index, the greater the resistance

of the coke to breakage into pieces which are smaller than the stated size.

The mean size of the coke before and after the shatter test may also be determined to give additional

information about the strength of the coke.
© ISO 2021 – All rights reserved PROOF/ÉPREUVE v
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INTERNATIONAL STANDARD ISO 616:2021(E)
Coke — Determination of shatter indices
1 Scope

This document specifies a method for determining the strength of coke by the shatter test.

2 Normative references

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 579, Coke — Determination of total moisture
ISO 728, Coke — Size analysis by sieving

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

plate

ISO 13909-6, Hard coal and coke — Mechanical sampling — Part 6: Coke — Preparation of test samples

ISO 18283, Hard coal and coke — Manual sampling
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

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

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
shatter index

percentage of a specially prepared sample of coke remaining on a test sieve of stated size of openings

after the sample h
...