ISO 1013:2020

Overview

ISO 1013:2020 is an internationally recognized standard specifying the method for determining the bulk density of coke in large containers such as wagons or skips. Bulk density is a critical physical property affecting the handling, storage, and transportation of coke, an essential industrial fuel and raw material. The standard provides a precise and repeatable procedure to measure the coke bulk density, ensuring consistent quality assessment and compliance across industries.

This third edition of ISO 1013 updates the previous 1995 version with minor corrections and additional bibliographic references and reflects current best practices in coke testing.

Key Topics

• Scope and Application: Specifies the method for determining the bulk density of coke in large containers (minimum capacity around 3 metric tonnes).
• Definition of Bulk Density: Mass of coke per unit volume of the filled container, corrected for moisture content according to ISO 579.
• Apparatus Needed: A large container such as a wagon or skip, and a weighing machine with an accuracy of 0.2%.
• Procedure Summary:
  • Weigh the empty container and measure its internal volume.
  • Fill the container evenly with coke until heaped slightly above the rim.
  • Level the surface with a straightedge to remove excess.
  • Weigh the filled container and calculate bulk density using a standardized formula.
• Expression of Results:
  • Bulk density is reported in kilograms per cubic meter (kg/m³), on a dry basis (moisture-corrected).
  • For results on an "as sampled" basis, moisture correction can be omitted.
• Precision and Repeatability: Results from the same operator and apparatus should not differ by more than 10 kg/m³. Reproducibility across different sites is not guaranteed due to coke sample variability.
• Reporting Requirements: Include method reference, sample identification, test date, and results as per the standard.

Applications

• Industrial Quality Control: Ensures consistent bulk density measurement critical to steel manufacturing, foundry coke usage, and other metallurgical processes.
• Transportation Verification: Accurate density data assist logistics planning for wagon and skip transport, optimizing load capacities and reducing risks.
• Storage Management: Bulk density informs storage design and inventory control, preventing material degradation or handling issues.
• Research and Development: Provides a reliable testing protocol for evaluating coke physical characteristics under various production or treatment conditions.

By standardizing measurement methods, ISO 1013:2020 supports fair trade practices and regulatory compliance while enhancing operational efficiency in the coal and coke industries.

Related Standards

• ISO 567: Specifies the method for determination of bulk density of coke in small containers, complementing ISO 1013 for different scales.
• ISO 579: Defines the procedure for determining the total moisture content in coke, necessary for adjusting bulk density measurements.
• ISO 18283: Covers manual sampling techniques for hard coal and coke, foundational to obtaining representative test samples.

These related standards collectively ensure comprehensive quality assessment and characterization of coke products throughout the supply chain.

Keywords: ISO 1013:2020, coke bulk density, large container, coke testing, moisture correction, coke wagon, coke skip, industrial standards, metallurgical coke, coke quality control, coke storage, bulk density determination, coal and coke standards.