ISO/TS 4699:2022 PDF

Name: ISO/TS 4699:2022 — Hard Coal — Determination of plastometric indices — Manual method
SKU: ISO/TS 4699:2022
Price: 25 EUR
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Hard Coal — Determination of plastometric indices — Manual method

Название (английский):

ISO/TS 4699:2022

Hard Coal — Determination of plastometric indices — Manual method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 26
Дата публикации:: 17 августа 2022 г.
Издание:: ISO TS 4699 edition 1 version 1
ICS:: 73.040

Тип поставки:

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Язык документа:

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Срок поставки:5 раб. дн. (перевод)

Цена:390 €

Описание (английский):

This document specifies a manual method for the determination of plastometric indices. These indices are the maximum thickness of the plastic layer (Y, mm) and the final contraction value (X, mm). This document is applicable for hard coals with a determined ash level less than 15 % on a dry basis, as described in ISO 11722 and ISO 1171.

Abstract

Overview

Key Topics and Requirements

Test principle: Unidirectional heating of a packed coal bed from the base under a constant applied pressure while the evolution of a plastic layer is monitored and recorded.
Measured indices:
- Y (maximum plastic layer thickness) - calculated as the maximum perpendicular distance between fitted upper and lower plastic-layer displacement curves.
- X (final contraction) - perpendicular distance from the displacement-curve endpoint at 730 °C to the zero line defined at 250 °C (note: the standard explains the numerical relationship between measured displacement and actual displacement).
Apparatus and consumables: Manual plastometer assembly (retort, electric furnace, pressure plate, probe, thermocouples, recording device, rotary drum), balance masses (optional), refractory pads, paper tube (cigarette rolling paper), filter paper, abrasive cloth, ceramic wool/cord.
Sample preparation and loading: Specific guidance on crushing, sieving (1.5 mm), retort packing, and aligning thermocouple and probe positions is provided.
Data processing: Manual periodic probing of upper/lower interfaces, recording the displacement curve, and fitting layer curves using least-squares to compute Y and X.
Quality and precision: Clause 11 provides repeatability and reproducibility limits; instrumental methods must be demonstrated free from bias relative to this manual reference.

Applications and Users

ISO/TS 4699:2022 is intended for:

Coal testing laboratories performing rheological characterization of coking/hard coals.
Coke producers and metallurgical plants needing to assess coal plasticity for coke-making performance and blending.
Research organizations studying coal thermoplastic behavior.
Manufacturers of plastometers and laboratory equipment validating new instrumental methods against a manual reference.
Quality assurance teams requiring standardized, traceable methods for regulatory or contractual testing.

Practical uses include coal selection and blending for coke quality, process control in coke ovens, validation/calibration of automated plastometers, and research into coal thermoplastic properties.

Related Standards

Relevant cross-referenced documents include:

ISO 11722 and ISO 1171 (ash determination)
ISO 1213-2 (vocabulary for sampling/testing)
ISO 3310-2 (test sieves)
ISO 13909 series and ISO 18283 (sampling and sample preparation for coal and coke)

Keywords: ISO/TS 4699:2022, plastometric indices, hard coal testing, manual plastometer, plastic layer Y, final contraction X, coal laboratory method, coking coal.

Технические детали

Технический комитет: ISO/TC 27/SC 5 - Methods of analysis
SKU: ISO/TS 4699:2022

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