ISO/DIS 1014

Coke -- Determination of true relative density, apparent relative density and porosity

Coke -- Détermination de la densité relative vraie, de la densité relative apparente et de la porosité

Standards Content (sample)

DRAFT INTERNATIONAL STANDARD
ISO/DIS 1014
ISO/TC 27/SC 3 Secretariat: SABS
Voting begins on: Voting terminates on:
2021-01-07 2021-04-01
Coke — Determination of true relative density, apparent
relative density and porosity

Coke — Détermination de la densité relative vraie, de la densité relative apparente et de la porosité

ICS: 75.160.10
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 1014:2021(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2021
---------------------- Page: 1 ----------------------
ISO/DIS 1014:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DIS 1014:2021(E)
Contents Page

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

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

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

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

4 True relative density ........................................................................................................................................................................................ 1

4.1 Principle ........................................................................................................................................................................................................ 1

4.2 Apparatus .................................................................................................................................................................................................... 2

4.3 Preparation of sample....................................................................................................................................................................... 3

4.4 Procedure .................................................................................................................................................................................................... 3

4.5 Expression of results .......................................................................................................................................................................... 3

4.5.1 Calculations .......................................................................................................................................................................... 3

4.5.2 Precision.................................................................................................................................................................................. 4

5 Apparent relative density ............................................................................................................................................................................ 4

5.1 General ........................................................................................................................................................................................................... 4

5.2 Principle ........................................................................................................................................................................................................ 4

5.3 Apparatus .................................................................................................................................................................................................... 4

5.4 Sample ............................................................................................................................................................................................................ 6

5.5 Procedure .................................................................................................................................................................................................... 6

5.5.1 Procedure using an elliptical tank (5.3.2.1).............................................................................................. 6

5.5.2 Procedure using a rectangular cross-sectioned container with a spout (5.3.2) ....... 6

5.6 Expression of results .......................................................................................................................................................................... 7

5.6.1 Calculations .......................................................................................................................................................................... 7

5.6.2 Precision.................................................................................................................................................................................. 7

6 Porosity .......................................................................................................................................................................................................................... 8

6.1 Principle ........................................................................................................................................................................................................ 8

6.2 Expression of results .......................................................................................................................................................................... 8

7 Test report ................................................................................................................................................................................................................... 8

Bibliography ................................................................................................................................................................................................................................ 9

© ISO 2021 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/DIS 1014:2021(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 03, Coke.

This third edition cancels and replaces the second edition (ISO 1014:1985), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— General and technical revision

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.
iv © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 1014:2021(E)
Coke — Determination of true relative density, apparent
relative density and porosity
1 Scope
This document specifies methods of
1))

1.1 determining the true relative density of coke, crushed to < 212 µm, in relation to water

1.2 determining the apparent relative density of coke, i.e. the ratio of the mass of a volume of dry coke

to the mass of an equal volume of water
1.3 calculating the porosity of the coke.
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 687, Solid mineral fuels — Coke — Determination of moisture in the general analysis test sample

ISO 728, Coke — Size analysis by sieving

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

ISO 18283, Hard Coal and Coke — Manual sampling

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

ASTM D167, Standard test method for apparent and true specific gravity and porosity of lump

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/
4 True relative density
4.1 Principle

The mass of water displaced by a known mass of dry coke, ground to pass a sieve of nominal size

of openings 212 µm, is determined using a pyknometer. Air is displaced by boiling during the

determination. Air-free distilled water is specified. Thermostatic control of the temperature is essential

since a difference of 1 °C can cause an error of about 0,012 in the result

1) It should be noted that “true relative density” varies according to the displacement liquid used.

© ISO 2021 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO/DIS 1014:2021(E)
4.2 Apparatus
4.2.1 Pyknometer, 50 ml capacity, Figure 1

4.2.2 Water bath, with stirrer, thermostatically controlled to maintain a desired temperature 0 °C to

within ± 1 °C.

4.2.3 Two wash bottles, each containing about 50 ml of airfree distilled water. One wash bottle is kept

hot (80 °
...