ISO 1014-2:2025
(Main)Coke - Part 2: Determination of true relative density
Coke - Part 2: Determination of true relative density
This document specifies the method for determining the true relative density of coke, in relation to water. NOTE “True relative density” varies according to the displacement liquid used.
Coke — Partie 2: Détermination de la densité relative vraie
General Information
- Status
- Published
- Publication Date
- 21-Jul-2025
- Technical Committee
- ISO/TC 27/SC 3 - Coke
- Drafting Committee
- ISO/TC 27/SC 3 - Coke
- Current Stage
- 6060 - International Standard published
- Start Date
- 22-Jul-2025
- Due Date
- 18-Jan-2026
- Completion Date
- 22-Jul-2025
Relations
- Effective Date
- 29-Mar-2025
Overview
ISO 1014-2:2025 - "Coke - Part 2: Determination of true relative density" specifies a laboratory method to determine the true relative density of coke (relative to water). The procedure uses a 50 ml pycnometer and distilled water, with air removed by boiling, to measure the volume displaced by a known mass of dry, ground coke (212 µm top size). Results are reported to 0.01 (dimensionless). The document is intended for quality control and analytical laboratories working with coke and related products.
Key Topics and Requirements
- Scope and principle
- Measure mass of water displaced by a known mass of coke using a pycnometer; air removal by boiling; thermostatic temperature control is essential (a 1 °C difference can cause about a 0.012 error).
- Sample preparation
- General analysis sample ground to pass a 212 µm sieve (see ISO 13909-6 and ISO 18283).
- Typical test portion ≈ 5 g; drying 1 h at 105–110 °C unless material is hygroscopic (alternate moisture correction allowed).
- Apparatus
- 50 ml pycnometer, thermostatically controlled water bath (±1 °C), glycerol bath, reflux air condenser, two wash bottles, analytical balance (resolution at least 0.1% of test portion).
- Procedure highlights
- Clean and condition pycnometer in distilled water at controlled temperature; transfer accurately weighed dry coke to pycnometer; boil vigorously for 30 min with reflux to remove trapped air; refill and equilibrate to test temperature before final weighing.
- Calculation and reporting
- True relative density calculated from the masses of (a) dry coke, (b) pycnometer with water, and (c) pycnometer with coke and water. Report mean of duplicate determinations to the nearest 0.01.
- Precision
- Repeatability: duplicates in same lab by same operator should not differ by more than 0.03.
- Reproducibility: means from two different labs should not differ by more than 0.05.
- Test report must include
- Sample identification, reference to ISO 1014-2:2025, date, results and expression method.
Applications and Users
- Industrial and laboratory users who require accurate density data for:
- Coke producers and quality control labs
- Steel and metallurgical plants evaluating coke performance
- Materials testing and research institutions studying coke properties
- Regulatory bodies and certification laboratories for product specifications
- Keywords: ISO 1014-2:2025, true relative density, coke density determination, pycnometer method, coke quality control, laboratory standard.
Related Standards
- ISO 13909-6 - Preparation of test samples of coke (mechanical sampling)
- ISO 18283 - Manual sampling of coal and coke
- ISO 687 - Determination of moisture in coke (referenced for hygroscopic materials)
- ISO 3310-2 - Test sieves (perforated metal plate)
This standard provides a reproducible, instrument-based method for accurate density measurement of coke critical to material specification and process control.
Frequently Asked Questions
ISO 1014-2:2025 is a standard published by the International Organization for Standardization (ISO). Its full title is "Coke - Part 2: Determination of true relative density". This standard covers: This document specifies the method for determining the true relative density of coke, in relation to water. NOTE “True relative density” varies according to the displacement liquid used.
This document specifies the method for determining the true relative density of coke, in relation to water. NOTE “True relative density” varies according to the displacement liquid used.
ISO 1014-2:2025 is classified under the following ICS (International Classification for Standards) categories: 75.160.10 - Solid fuels. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 1014-2:2025 has the following relationships with other standards: It is inter standard links to ISO 1014:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 1014-2:2025 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
International
Standard
ISO 1014-2
First edition
Coke —
2025-07
Part 2:
Determination of true relative density
Coke —
Partie 2: Détermination de la densité relative vraie
Reference number
© ISO 2025
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
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or ISO’s member body in the country of the requester.
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Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
6 Preparation of sample . 2
7 Procedure . 2
8 Calculation and expression of results . 3
9 Precision . 3
9.1 Repeatability .3
9.2 Reproducibility .3
10 Test report . 4
Bibliography . 5
iii
Foreword
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The procedures used to develop this document and those intended for its further maintenance are described
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ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
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This document was prepared by Technical Committee ISO/TC 27, Coal and coke, Subcommittee SC 3, Coke.
This first edition of ISO 1014-2, together with ISO 1014-1 and ISO 1014-3, cancels and replaces ISO 1014:2021.
A list of all parts in the ISO 1014 series can be found on the ISO website.
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
International Standard ISO 1014-2:2025(en)
Coke —
Part 2:
Determination of t
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