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 member to initiate a ballot:

**SSIGs that need 1 member:**

**T 213 om-15** Dirt in pulp - chart method**T 222 om-15** Acid insoluble lignin in wood and pulp **T 248 sp-15** Laboratory beating of pulp (PFI mill method)**T 254 cm-10** Cupriethylenediamine disperse viscosity of pulp (falling ball method)**T 256 cm-07** Water-soluble chlorides in pulp and paper **T 265 cm-09** Natural dirt in wood chips **T 268 om-13** Weight-volume measurement of pulpwood**T 504 cm-07** Glue in paper (qualitative & quantitative determination)**T 573 sp-15** Accelerated temperature aging of printing and writing paper by dry oven exposure apparatus

**SSIGs that need 3 members:**

**T 259 om-15** Species identification of nonwood plant fibers**T 267 cm-15** Compression wood identification in pulpwood **T 617 cm-10** Analysis of **T 622 cm-10** Analysis of sodium hydrosulfite lime

**SSIGs that need 4 or more members:**

**T 223 cm-10** Pentosans in wood and pulp **T 226 cm-11** Specific external surface of pulp**T 237 cm-08** Carboxyl content of pulp**T 244 cm-11** Acid-insoluble ash in wood, pulp, paper, and paperboard **T 429 cm-10** Alpha-cellulose in paper **T 434 cm-10** Acid-soluble iron in paper **T 435 om-16** Hydrogen ion concentration (pH) of paper extracts (hot extraction method)**T 493 cm-10** Identification and determination of melamine resin in paper **T 495 cm-13** Bending number of paperboard **T 509 om-15** Hydrogen ion concentration (pH) of paper extracts (cold extraction method) **T 600 om-15** Analysis of formaldehyde in aqueous solutions and of free formaldehyde in resins **T 610 sp-15** Preparation of indicators and standard solutions **T 613 cm-10** Analysis of caustic soda **T 618 cm-10** Analysis of limestone **T 619 cm-10** Analysis of salt cake **T 621 cm-10** Analysis of rosin **T 628 cm-10** Analysis of rosin size **T 632 cm-11** Analysis of sodium silicate **T 699 om-09** Analysis of pulping liquors by suppressed ion chromatography

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.**