Abstract: The invention relates to a corrosion-inhibiting material comprising a composite containing a metal oxide gel, where necessary modified by an organic polymer, and one or more corrosion inhibitors, and to a method for the production thereof. The corrosion-inhibiting composite material is used for producing corrosion-protective packaging material, for coating metallic and metallized articles as well as for corrosion protection in confined environments.

Abstract: The invention relates to a test strip for taking of daily blood sugar profiles, and also for glucose determination in urine for determining the individual kidney threshold of a diabetic as a daily profile, which finds use in glucose diagnosis.The objective of the invention is to stabilize the test strip in its function and to adapt it to customary measuring instruments, and this is achieved by attaching a film reaction membrane to a carrier, wherein the membrane was post treated with a complexing agent and an acyclic hydroxyamine or amino derivative.

Abstract: A test strip for the detection and determination of glucose in body fluids comprising a carrier demarcated into three zones (a) a measuring zone which is untreated, but may be impregnated with a coloring agent, oxidizing agent, buffer or precipitating agent, (b) a reaction zone containing glucose oxidase and (c) a detection zone composed of at least one strip containing peroxidase and an indicator. The paper test strip is preferably enclosed within a suitably dimensioned capillary tube which contains markings at the end thereof enclosing the measuring zone for limiting the amount of flow liquid to be admitted and additional markings at the end thereof enclosing the detection zone for quantitatively reporting the glucose content.

Abstract: An indicator for urea determination has a capillary tube provided on the inside with an indicator-signal band in form of stripe-shaped signal zones treated with a dyestuff which changes color in the alkaline range; there are untreated spaces between the stripe-shaped signal zones. The lower end of the capillary tube has a colored mark to indicate the level to which it is to be filled.

Abstract: A capillary tube indicator for determination of urea concentrations, which permits a simple measurement of the sample without auxiliary aids, provides an easily readable measurement, and does not require the addition of buffers, alkali carbonates or hydroxides. The indicator includes a capillary tube of glass or plastic into which a specially prepared indicator strip is inserted. The reaction system of the indicator strip includes a partially purified urease preparation and 1 to 15% of a saccharide or polysaccharide, preferably glucose. The indicator strip also has zones treated with alkali-sensitive dye, applied so as to give either quantitative or semiquantitative readings of urea concentration.

Abstract: A micro test tube adapted for use in carrying out microbiological determinations, and being especially adapted for detection of bacteria in body fluids such as milk and urine comprising a capillary tube which increases in diameter at one end thereof to form a small generally cylindrical sample tube, sealing means for sealing the open ends of the capillary and sample tubes and movable sealing means such as a bead or needle for sealing off the passage between the capillary and sample tube portions of the micro tube, the sealing means sealing for the open end of the sample tube being selected to serve as aspirator means for delivering the sample into the tube and the sealing means for sealing the capillary being selected to also serve as a stand for the micro test tube.