OPTICAL PROPERTIES

Yes
No
T 218 Forming handsheets for reflectance testing of pulp (B?chner funnel procedure)
T 272 Forming handsheets for reflectance testing of pulp (sheet machine procedure)
T 400 Sampling and accepting a single lot of paper, paperboard, containerboard, or related product
T 425 Opacity of paper (15/d geometry, illuminant A/2 , 89% reflectance backing and paper backing)
T 452 Brightness of pulp, paper, and paperboard (directional reflectance at 457 nm)
T 480 Specular gloss of paper and paperboard at 75
T 515 Visual grading and color matching of paper
T 519 Diffuse opacity of paper (d/0 paper backing)
T 524 Color of paper and paperboard (45/0, C/2)
T 525 Diffuse brightness of paper, paperboard, and pulp (d/0) - ultraviolet level C
T 527 Color of paper and paperboard (d/0, C/2)
T 534 Brightness of clay and other mineral pigments (d/0 diffuse)
T 560 CIE whiteness and tint of paper and paperboard (d/0 geometry, C/2 illuminant/observer)
T 562 CIE whiteness and tint of paper and paperboard (45/0 geometry, C/2 illuminant/observer)
T 563 Equivalent black area (EBA) and count of visible dirt in pulp, paper and paperboard by image analysis
T 567 Determination of effective residual ink concentration (ERIC) by infrared reflectance measurement
T 568 Physical area of sub-visible contraries in pulp, paper, and paperboard by image analysis
T 579 Diffuse brightness of paper, paperboard and pulp (d/0) (ultraviolet level D65)
T 646 Brightness of clay and other mineral pigments (45/0)
T 653 Specular gloss of paper and paperboard at 20
T 1200 Interlaboratory evaluation of test methods to determine TAPPI repeatability and reproducibility
T 1205 Dealing with suspect (outlying) test determinations
T 1210 Units of measurement and conversion factors
T 1211 Acceptance procedures for laboratories providing reference materials for TAPPI Standards
T 1212 Light sources for evaluating papers including those containing fluorescent whitening agents
T 1214 Interrelation of reflectance, R0; reflectivity, R ; TAPPI opacity, C0.89; scattering, s; and absorption, k
T 1215 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 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
Producers of pulp or paper: SSIG members working for a corporation or subunit of a corporation whose major activity is the production of pulp or paper.
Converters of pulp or paper: 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 or paper: 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.