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Significance and Use
4.1 Wood contains approximately 20 to 30 % lignin. Removal of the lignin is the primary objective of pulping and bleaching procedures. Determination of the lignin content provides information for the evaluation and application of these processes.
1.1 This test method2 covers the determination of the acid-insoluble lignin content of wood.
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. Specific precautionary statements are given in 6.1.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1107 Test Method for Ethanol-Toluene Solubility of Wood
ICS Number Code 79.040 (Wood, sawlogs and sawn timber)
UNSPSC Code 11121600(Wood)