About 8 in Baryta/Fiber qualities on cotton base, about 6 in that category on alpha cellulose base. About 4 in the RC category, mainly proofing papers.
Innova IFA45 FP Warm Cotton Gloss
Permajet Fibre Base Warmtone
Canon USA Polished Rag
Canson Platine Fibre Rag
Hahnemühle Photo Rag Baryta
Hahnemühle Photo Rag Pearl
Museo Silver Rag
Bergger PN70
Harman by HM Gloss Art Fibre Warmtone
Innova IFA19 Fibaprint Warmtone Gloss
Sihl 4848 Masterclass Satin Baryta
Tecco Baryt Ivory
Epson Proofing White SemiMatte
Epson Proofing Publication
Canon USA Commercial Proofing Grade
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Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htmDecember 2012, 500+ inkjet media white spectral plots.