Abstract: A visual blood glucose test strip has two membranes that each incorporate a reagent that reacts with glucose in a blood sample applied to the membranes to cause a color change. One of the membranes also includes an inhibitor and a dye. A blood sample applied to the strip causes the two membranes to form two different colors. Comparing the colors to a calibrated color chart permits a user to determine the glucose concentration in the blood sample.

Abstract: A visual blood glucose test strip has two membranes that each incorporate a reagent that reacts with glucose in a blood sample applied to the membranes to cause a color change. One of the membranes also includes an inhibitor and a dye. A blood sample applied to the strip causes the two membranes to form two different colors. Comparing the colors to a calibrated color chart permits a user to determine the glucose concentration in the blood sample.

Abstract: A visual blood glucose test strip has two membranes that each incorporate a reagent that reacts with glucose in a blood sample applied to the membranes to cause a color change. One of the membranes also includes an inhibitor and a dye. A blood sample applied to the strip causes the two membranes to form two different colors. Comparing the colors to a calibrated color chart permits a user to determine the glucose concentration in the blood sample.

Abstract: A visual blood glucose test strip has two membranes that each incorporate a reagent that reacts with glucose in a blood sample applied to the membranes to cause a color change. One of the membranes also includes an inhibitor and a dye. A blood sample applied to the strip causes the two membranes to form two different colors. Comparing the colors to a calibrated color chart permits a user to determine the glucose concentration in the blood sample.

Abstract: Disclosed is an electrophotographic toner comprising a resin, a pigment, and surface-modified, pyrogenically produced aluminum oxide which is has the following physico-chemical properties:______________________________________ Surface (m.sup.2 /g) 50 to 100 Stamping density (g/l) 50 to 90 Drying loss (%) <5 Annealing loss (%) 5.0 to 15 C content (%) 0.5 to 12 pH 4 to 8.

Abstract: Surface-modified, pyrogenically produced silicon dioxide is obtained by placing a pyrogenically produced silicon dioxide in a know mixing device, spraying it with a chemical compound from the group:CHF.sub.2 --CF.sub.2 --O--(CH.sub.2).sub.3 --Si(OCH.sub.3).sub.3CF.sub.3 --CHF--CF.sub.2 --O--(CH.sub.2).sub.3 --Si(OCH.sub.3).sub.3C.sub.4 F.sub.9 --CH.sub.2 --CH.sub.2 --Si(OCH.sub.3).sub.3C.sub.6 F.sub.13 --CH.sub.2 --CH.sub.2 --Si(OCH.sub.3).sub.3with intensive mixing, subsequently mixing it and tempering the mixture obtained for a fairly long time.

Abstract: Surface-modified, pyrogenically produced aluminum oxide which is has the following physico-chemical properties:______________________________________ Surface (m.sup.2 /g) 50 to 150 Stamping density (g/l) 50 to 90 Drying loss (%) <5 Annealing loss (%) 5.0 to 15 C content (%) 0.5 to 12 pH 4 to 8.

Abstract: Surface-modified, pyrogenically produced titanium dioxide which has the following physico-chemical properties:______________________________________ Surface (m.sup.2 /g) 5 to 120 Stamping density (g/l) 50 to 250 Drying loss (%) <5 Annealing loss (%) 3.5 to 15 Carbon content (%) 0.5 to 12 pH 4 to 10.

Abstract: Surface-modified, pyrogenically produced aluminum oxide which has the following physico-chemical properties:______________________________________ Surface (m.sup.2 /g) 50 to 150 Stamping density (g/l) 50 to 90 Drying loss (%) <5 Annealing loss (%) 5.0 to 15 C content (%) 0.5 to 12 pH 4 to 8.

Abstract: Surface-modified, pyrogenically produced titanium dioxide which is has the following physico-chemical properties:______________________________________ Surface (m.sup.2 /g) 5 to 120 Stamping density (g/l) 50 to 250 Drying loss (%) <5 Annealing loss (%) 3.5 to 15 Carbon content (%) 0.5 to 12 pH 4 to 10.