The Standard-Specific Interest Groups (SSIGs) for the following Standards are in need of additional members. These groups may or may not have ballots currently open.
All Standard-Specific Interest Groups (SSIG) require a minimum of 10 members in order to ballot and vote on a draft of a method. The following test methods do not have the required minimum number of members to initiate a ballot:
Fillers and Pigments
T 438 cm-06 Zinc and Cadmium in Paper
T 218 sp-18 Forming handsheets for reflectance testing of pulp (Büchner funnel procedure)
T 425 om-21 Opacity of paper (15/d geometry, illuminant A/2 degrees, 89% reflectance backing and paper backing)
T 515 om-20 Visual grading and color matching of paper
T 567 om-20 Determination of effective residual ink concentration (ERIC) by infrared reflectance measurement
T 579 om-18 Diffuse brightness of paper, paperboard and pulp (d/0) (ultraviolet level D65)
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)
Physical Properties
T 454 om-21 Turpentine test for voids in glassine and greaseproof papers
Pulp Properties
T 267 cm-15 Compression wood identification in pulpwood
T 282 om-19 Hexeneuronic acid content of chemical pulp
Participating in a SSIG is free and open to anyone interested. Join now!
If no progress is made on balancing these SSIGs, then the respective methods may be considered for withdrawal at the next Q&SMC meeting. If you have an interest in becoming a member of either of these SSIGs please contact standards@tappi.org. or visit tappi.org/JoinStandards.