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T 233 cm-25 Fiber length of pulp by classification (Reaffirmed)
T 267 cm-25 Compression wood identification in pulpwood (Reaffirmed)
T 511 om-25 Folding endurance of paper (MIT tester) (Reaffirmed)
T 549 om-25 Coefficients of static and kinetic friction of uncoated writing and printing paper by use of the horizontal plane method (Reaffirmed)
T 553 om-25 Alkalinity of paper as calcium carbonate (alkaline reserve of paper) (Reaffirmed)
T 558 om-25 Surface wettability and absorbency of sheeted materials using an automated contact angle tester (Reaffirmed)
T 807 om-25 Bursting strength of linerboard (Revised)
T 808 cm-25 Flat crush test of corrugated board (flexible beam method) (Reaffirmed)
T 836 om-25 Bending stiffness, four point method (Reaffirmed)
T 1500 gl-25 Optical measurements terminology (related to appearance evaluation of paper) (Revised)

Special thanks to the SSIG members below for being the Working Group Chairs in the recently published reviews of TAPPI Standards:

Don Guay - WGC for T 233
Ben Frank - WGC for T 807
Chris Czyryca - WGC for T 1500

The TAPPI Standards Department would also like to express its gratitude to all volunteers who participated in the review of those Standards as SSIG members.

Six TAPPI Standards approved as American National Standards

The following TAPPI Standards have been approved as American National Standards by the ANSI Board of Standards Review:

New American National Standards:

T 807 om-25 Bursting strength of linerboard

Approved reaffirmation of current American National Standards:

T 511 om-25 Folding endurance of paper (MIT tester) 
T 549 om-25 Coefficients of static and kinetic friction of uncoated writing and printing paper by use of the horizontal plane method
T 553 om-25 Alkalinity of paper as calcium carbonate (alkaline reserve of paper) 
T 558 om-25 Surface wettability and absorbency of sheeted materials using an automated contact angle tester 
T 836 om-25 Bending stiffness, four point method 

Notices of the approvals of the TAPPI Standards as American National Standards were placed in the June 13, 2025, edition of ANSI Standards Action. 

Check here the list of TAPPI Technical Information Papers (TIPs) recently published:

TIP 0404-05 Methods of evaluating high velocity dryers (Revised)
TIP 1101-10 Caliper Dynamic Correlation – Single Point Method (Newly Issued)

We extend our special appreciation to the following volunteers who served as Working Group Chairs in the recently published reviews of TAPPI TIPs:

Mark Harrison – WGC for TIP 0404-05
Lu Athnos – WGC for TIP 1101-10 

Check here the list of TAPPI Useful Methods (UMs) recently published:

UM 240 Shive content of mechanical pulp (laboratory flat screen) (Reaffirmed)
UM 242 Shive content of mechanical pulp (Somerville fractionator) (Reaffirmed)

We extend our special appreciation to the following volunteers who served as Working Group Chairs in the recently published reviews of TAPPI Useful Methods: 

Ramakrishna Trovagunta – WGC for UM 240
Roland Trepanier – WGC for UM 242

Special note: Documents appearing in the TAPPI online version of the Standards and TIPs are updated once a month (usually around the 30th). So it is possible that there is a delay between the publication announcement and the posting online. If you are a subscriber to the online access to Standards and TIPs and you are in a hurry for new documents that have not yet been posted, you can send a request for TIPs to tip@tappi.org or for Standards to standards@tappi.org.

TAPPI Standards guidelines require that all TAPPI members receive notification of any proposed new Standard or TIPs. This message is being sent to you because you are a TAPPI member; have purchased TIPs or Standards products from TAPPI; or because you have previously expressed interest in this topic.

TAPPI is the leading technical association for the worldwide pulp, paper and converting industry.
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