T/CNFPIA 2005-2024 Active Group standards

T/CNFPIA 2005-2024 The method for determining the carbon content of wood and wood products

Publish Date: 2024-10-08 Implement Date: 2024-10-08 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CNFPIA 2005-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Agriculture, forestry

ICS Name: \nTimber, logs, and sawn timber

Publish Date: 2024-10-08

Implement Date: 2024-10-08

Scope

Scope: This document describes the method for determining the carbon content in wood and wood products by non-dispersive infrared absorption spectroscopy, including reagents, instruments and equipment, sample preparation, measurement steps, data processing and result presentation, as well as reporting. This document is applicable to the determination of carbon content in wood and wood products. This document is not applicable to the determination of carbon content in wood and wood products containing carbonate minerals as the main additives. Main technical content: Terms and definitions. The following terms and definitions are applicable to this document. Total carbon: The total amount of carbon elements in wood and wood products. Note: This includes the amount of organic carbon and inorganic carbon. Total organic carbon: The total amount of carbon elements in wood and wood products that exist in organic form. Total inorganic carbon: The total amount of carbon elements in wood and wood products that exist in inorganic form. Note: This includes carbon elements in the form of carbonates or bicarbonates. Method description: A suitable amount of wood and wood product samples are oxidized to carbon dioxide gas under high-temperature and oxygen-rich conditions, and the infrared absorption spectrum intensity is measured by a non-dispersive infrared detector. The total carbon is quantitatively determined by external standard method. The total inorganic carbon in wood and wood products is extremely low, lower than the allowable error of the total carbon determination result, and the total organic carbon is expressed as total carbon. Reagents 5.1 Water: Distilled water or deionized water with a purity of at least Class II according to GB/T 6682. 5.2 Hydrochloric acid: Analytical grade, with a mass fraction of 36% to 38%. 5.3 Hydrochloric acid solution (1+4): Mix 1 volume of hydrochloric acid (5.2) with 4 volumes of water (5.1). 5.4 Glucose (C6H12O6): Reference reagent or supe