Standard Historical Last Updated: Aug 19, 2013 Track Document
ASTM D1109-84(2007)

Standard Test Method for 1% Sodium Hydroxide Solubility of Wood

Standard Test Method for 1% Sodium Hydroxide Solubility of Wood D1109-84R07 ASTM|D1109-84R07|en-US Standard Test Method for 1% Sodium Hydroxide Solubility of Wood Standard new BOS Vol. 04.10 Committee D07
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Significance and Use

Hot alkali extracts low molecular weight carbohydrates consisting mainly of hemicellulose and degraded cellulose in wood. This solubility of wood is an indication of the degree of fungal decay, or degradation by heat, light, oxidation, and so forth. The more decay or degradation, the higher the solubility.

Scope

1.1 This test method covers the determination of the solubility of wood in a hot dilute alkali solution. A 1 % solution of sodium hydroxide (NaOH) is used. One application is in determining the degree of fungus decay that has taken place in a given wood sample. As the wood decays, the percentage of alkali-soluble material increases in proportion to the decrease in pulp yield caused by the decay.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Details
Book of Standards Volume: 04.10
Developed by Subcommittee: D07.01
Pages: 2
DOI: 10.1520/D1109-84R07
ICS Code: 79.040