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US 12,723,987 B2Granted
Chromium VI test
AssigneeMatinspired B.V.
InventorNiels Kuijpers
Life of this patent
Estimating the term…
Abstract
The present invention is in the field of chromium VI test, a chromium VI tester, a test kit comprising said chromium VI tester, and in particular to identify low amounts of chromium VI, such as in coatings and paints, which low amounts may form a health risk and may be toxic.
Claims11
A chromium VI-tester comprising:
- a fluid absorbing material, in the fluid absorbing material, a pH-indicator, wherein the pH-indicator has a color in neutral form, and no color under acidic conditions, and in the fluid absorbing material, a chromium VI-indicator, wherein the chromium VI-indicator has a color in the presence of chromium VI, and no color in absence of chromium VI, wherein the pH-indicator color in neutral form is different from the chromium VI-indicator color in the presence of chromium VI,
- further comprising a container for providing fluid drops of acid, wherein the acid has a pH<3.
Dependencies are inferred from the claim text.