TAPPI Standards Approved as American National Standards

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The following TAPPI Standards have been approved as American National Standards:

T 550 om-13 "Determination of equilibrium moisture in pulp, paper and paperboard for chemical analysis"
T 572 sp-13 "Accelerated pollutant aging of printing and writing paper by pollution chamber exposure apparatus"
T 692 om-13 "Determination of suspended solids in kraft green and white liquors"
T 428 om-13 "Hot water extractable acidity or alkalinity of paper
T 406 om-13 "Reducible sulfur in paper and paperboard"
T 274 sp-13 "Laboratory screening of pulp (MasterScreen-type instrument)"
T 410 om-13 "Grammage of paper and paperboard (weight per unit area)"
T 282 om-13 "Hexeneuronic acid content of chemical pulp"
T 441 om-13 "Water absorptiveness of sized (non-bibulous) paper, paperboard, and corrugated fiberboard (Cobb test)
T 402 sp-13 "Standard conditioning and testing atmospheres for paper, board, pulp handsheets, and related products"

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