Standard Test Method for 1 % Sodium Hydroxide Solubility of Wood
Standard Test Method for 1 % Sodium Hydroxide Solubility of WoodD1109-84R13ASTM|D1109-84R13|en-USStandard Test Method for 1 % Sodium Hydroxide Solubility of WoodStandardD1109 Standard Test Method for 1 % Sodium Hydroxide Solubility of Wood>newBOS Vol. 04.10 Committee D07
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Significance and Use
2.1 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. A1 % 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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