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This document describes a method for the determination of the loss on ignition (wLOI) of fine, intermediate, composite and coarse soils, organic soils and anthropogenic materials (according to
EN 16907‑2) after ignition under air at 550°C.
The loss of mass suffered by these materials at 550 °C is usually due to the release of volatile compounds, water (absorbed, crystalized or structural) and gases from decomposition of organic matter and inorganic substances such as sulfur, sulphides or hydroxides (e.g. H2O, CO2, SO2).
A method is given in Annex B in order to estimate the organic matter content (COM) from the value of wLOI for clayed soils.
| Standard Number | 21/30437192 DC |
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| Title | BS EN 17685-1. Earthworks. Chemical tests. Part 1. Determination of organic matter content by loss on ignition |
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| Status | Current, Draft for public comment |
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| Publication Date | 01 July 2021 |
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| Normative References(Required to achieve compliance to this standard) | ISO 3310-1, EN 932-2 |
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| Informative References(Provided for Information) | EN 16907-2 |
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| International Relationships | prEN 17685-1:2021 |
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| Draft Expiry Date | 24 August 2021 |
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| Descriptors | Ignition, Ignition coils, Testing, Chemical tests, Chemical analysis and testing |
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| ICS | 13.080.99
93.020
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| Title in French | Terrassements — Essais chimiques — Partie 1:Détermination de la teneur en matière organique par perte au feu - Partie 1:Détermination de la teneur en matière organique par perte au feu |
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| Title in German | Erdarbeiten — Chemische Prüfverfahren — Teil 1: Bestimmung des Gehalts an organischen Stoffen durch Glühverlust - Teil 1: Bestimmung des Gehalts an organischen Stoffen durch Glühverlust |
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| Committee | B/526/-/1 |
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| Publisher | BSI |
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| Format | A4 |
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| Delivery | Yes |
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| Pages | 14 |
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| File Size | 262 KB |
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| Notes | Warning: this draft is not current beyond its expiry date for comments. |
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| Price | £20.00 |
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