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:

Alkaline Pulping

T 692 om-13      Determination of suspended solids in kraft green and white liquors

                            Draft 2                                Current SSIG Count = 6 

 Chemical Properties
 

T 223 cm-10       Pentosans in wood and pulp                                   

                            Automatic review - 10/2019           Current SSIG Count = 9

T 429 cm-10       Alpha-cellulose in paper                            

                            Automatic review - 10/2019           Current SSIG Count = 7

T 434 cm-10       Acid-soluble iron in paper                                       

                            Automatic review - 10/2019           Current SSIG Count = 6

T 435 om-16      Hydrogen ion concentration (pH) of paper extracts (hot extraction method)       

                            Automatic review - 5/2020             Current SSIG Count = 6

T 493 cm-10       Identification and determination of melamine resin in paper   

                            Automatic review - 10/2019         Current SSIG Count = 5

T 600 om-15       Analysis of formaldehyde in aqueous solutions and of free formaldehyde in resins 

                            Automatic review - 10/2019         Current SSIG Count = 9

T 613 cm-10       Analysis of caustic soda                             

                            Automatic review - 10/2019         Current SSIG Count = 7

T 618 cm-10       Analysis of limestone                                 

                            Automatic review - 10/2019         Current SSIG Count = 7

T 621 cm-10       Analysis of rosin                                                        

                            Automatic review - 10/2019         Current SSIG Count = 7

T 628 cm-10       Analysis of rosin size                                                 

                            Automatic review - 10/2019        Current SSIG Count = 7

T 632 cm-11       Analysis of sodium silicate                                       

                            Automatic review - 5/2020          Current SSIG Count = 7

Fillers and Pigments
 
T438 cm-06  Zinc and Cadmium in Paper
                      Draft 2                                              Current SSIG Count = 9

Optical Properties
 
T 519 om-17  Diffuse opacity of paper (d/0 paper backing)
                       Automatic review - 4/2021              Current SSIG Count = 9

T 1214 sp-17  Interrelation of reflectance, R0; reflectivity, R ; TAPPI opacity, C0.89; scattering, s; and absorption, k
                        Automatic review - 10/2021           Current SSIG Count = 8

T 1219 sp-17  Storage of paper samples for optical measurements and color matching
                        Automatic review - 10/2021           Current SSIG Count = 9

Physical Properties
 
T 516 cm-11  Envelope seal, seam, and window patch testing
                       Automatic review - 5/2020              Current SSIG Count = 9

Pulp Properties
 
T 226 cm-11  Specific external surface of pulp
                       Automatic review -  5/2020             Current SSIG Count = 9

Sulfite and Semichemical Pulping
 
 T 604 cm-09  Sulfur dioxide in sulfite cooking liquor
                        Draft 2                                            Current SSIG Count = 5

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.