Optical Properties

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Please select the below Standards which you would like to participate in reviewing. (choose as many as you would like)

T 218 Forming handsheets for reflectance testing of pulp (Büchner funnel procedure)

T 272 sp-12 Forming handsheets for reflectance testing of pulp (sheet machine procedure)

T 425 om-16 Opacity of paper (15/d geometry, illuminant A/2 degrees, 89% reflectance backing and paper backing)

T 452 om-18 Brightness of pulp, paper, and paperboard (directional reflectance at 457 nm)

T 480 om-20 Specular gloss of paper and paperboard at 75 degrees

T 515 Visual grading and color matching of paper

T 519 om-17 Diffuse opacity of paper (d/0 paper backing)

T 524 om-20 Color of paper and paperboard (45/0, C/2)

T 525 om-17 Diffuse brightness of paper, paperboard and pulp (d/0) -- ultraviolet level C [TITLE CHANGE]

T 527 Color of paper and paperboard (d/0, C/2)

T 534 om-15 Brightness of clay and other mineral pigments (d/0 diffuse)

T 560 om-10 CIE whiteness and tint of paper and paperboard (d/0 geometry, C/2 illuminant/observer)

T 562 om-10 CIE whiteness and tint of paper and paperboard (45/0 geometry, C/2 illuminant/observer)

T 567 om-15 Determination of effective residual ink concentration (ERIC) by infrared reflectance measurement

T 579 Diffuse brightness of paper, paperboard and pulp (d/0) (ultraviolet level D65)

T 646 om-11 Brightness of clay and other mineral pigments (45/0)

T 653 om-07 Specular gloss of paper and paperboard at 20 degrees

T 1212 sp-12 Light sources for evaluating papers including those containing fluorescent whitening agents

T 1214 sp-17 Interrelation of reflectance, R0; reflectivity, R ; TAPPI opacity, C0.89; scattering, s; and absorption, k

T 1215 sp-12 The determination of instrumental color differences

T 1216 Indices for whiteness, yellowness, brightness, and luminous reflectance factor

T 1217 Photometric linearity of optical properties instruments

T 1218 Calibration of reflectance standards for hemispherical geometry

T 1219 sp-17 Storage of paper samples for optical measurements and color matching

T 1500 Optical measurements terminology (related to appearance evaluation of paper)

T NEW (WI 3035) Specular gloss at 20º -- parallel beam method

Please indicate an Interest Category (One Only):

Producers of Pulp & Paper or Nonwovens: SSIG members working for a corporation or subunit of a corporation whose major activity is the production of pulp or paper.

Converters of Pulp & Paper or Nonwovens/ nonwoven mat: SSIG members working for a corporation or subunit of a corporation whose major activity is the conversion of pulp or paper into some finished or intermediate manufactured state. Converters would include, but is not limited to, producers of corrugated roll goods, manufacturers of boxes, converters who buy rolls of tissue paper and convert it into finished saleable consumer goods, converters who use paper or similar materials to produce packaging of various kinds (including flexible packaging) and numerous similar producers of paper goods.

Suppliers of chemical or raw materials: SSIG members who are working for a corporation or subunit of a corporation whose major activity is to supply raw materials or chemicals for the manufacture of pulp or paper.

Suppliers of manufacturing equipment, instrumentation and online controls: SSIG members who are working for a corporation or subunit of a corporation whose major activity is to supply manufacturing equipment, instrumentation, or online controls for the manufacture of pulp or paper.

Service and general suppliers: SSIG members who are working for a corporation or subunit of a corporation whose major activity is providing for producers of pulp and paper a service or any other commodity not included in the other supplier categories.

Commercial users of Pulp & Paper or Nonwoven mat: SSIG members who are working for a corporation or subunit of a corporation whose major activity is the use of paper, pulp, corrugated, packaging material, or other related product after it has been produced and further converted into some finished sheet or roll form or intermediate finished article of commerce. This includes printers or, in general, any entity using paper where that use does not generally fit under the term "converter."

Marketers and Commercial Sellers: SSIG members who are working for a corporation or subunit of a corporation whose major activity is the marketing or sales of pulp or paper. This might include but is not limited to companies whose focus is the wholesale or retail selling of paper and paper products including cut size paper, paper tissue products, artist paper supplies, paper merchants, recyclers, etc.

Consultants: SSIG members who are independent contractors and who may provide consulting services to any segment of the industry.

Educators: SSIG members who teach or are employed by an academic institution.

General Interest: SSIG members who are not covered under any of the above categories; this category may include, but is not limited to, members affiliated with trade associations, professional societies, or government agencies, and retirees.

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