Check here the list of TAPPI Standards recently approved as American National Standards:

New American National Standards:

T 205 sp-18 Forming handsheets for physical tests of pulp
T 218 sp-18 Forming handsheets for reflectance testing of pulp (Büchner funnel procedure)
T 266 om-18 Determination of sodium, calcium, copper, iron and manganese in pulp and paper by atomic absorption spectroscopy
T 275 sp-18 Screening of pulp (Somerville-type equipment)
T 1501 sg-18 Training standard for paper machine tender

Reaffirmation of current American National Standards:

T 271 om-18 Fiber length of pulp and paper by automated optical analyzer using polarized light
T 491 om-18 Water immersion number of paperboard
T 551 om-18 Thickness of paper and paperboard (soft platen method)
T 568 om-18 Physical area of sub-visible contraries in pulp, paper and paperboard by image analysis
T 834 om-18 Determination of containerboard roll hardness
T 1217 sp-18 Photometric linearity of optical properties instruments
T 1218 sp-18 Calibration of reflectance standards for hemispherical geometry
T 1500 gl-18 Optical measurements terminology (related to appearance evaluation of paper)

Special note: Documents appearing in the TAPPI online version of the Standards and TIPs are updated once a month (usually around the 15th). 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.