SVT™ Specific Gravity Reagent
(Total Ion) – NIST Traceable Calibrators
Usage: For In Vitro Diagnostic Use to determine the specific gravity of a solution.
Method: Colorimetric : Endpoint.
Principle: This test is based on a pKa change of pretreated polyelectrolytes in response to ionic
concentration of the test sample. The reaction produces a color change that is monitored at 600nm.
Storage and Stability: Store at 2-10° C. The reagent is stable until expiration date on the container.
Specimen Collection & Preparation: The Specific Gravity reagent may be used on any freshly voided
urine specimen or urine collected under special conditions, such as first-morning specimens and postprandial
urine. The urine, collected in a clean container, should be tested as soon as possible (do not
centrifuge or use preservatives). If testing cannot be performed within one hour after collection, the
specimen should be refrigerated at 2-10° C immediately and returned to room temperature before
testing. Mix specimen thoroughly before testing.
SVT™ Specific Gravity – Sg Chloride Ion Reagent
(Cl– ion) – NIST Traceable Cals
Usage: For the quantitative measurement of specific gravity in human urine. This assay is not for use in
diagnosing disease or illness to effect treatment, and/or cure; it is For Forensic / Toxicology use only.
Method: Colorimetric : Endpoint.
Principle: This test is based on a linear relationship between Cl– ion concentration in urine and it’s
specific gravity concentration. This indirect method is measured colorimetrically using ferric perchlorate
reaction with Cl– ion in an acidic medium at 340nm.
Storage and Stability: Store at 2-10° C. The reagent is stable until expiration date on the container.
Specimen Collection & Preparation: The Specific Gravity reagent may be used on any freshly voided
urine specimen or urine collected under special conditions, such as first-morning specimens and postprandial
urine. The urine, collected in a clean container, should be tested as soon as possible (do not
centrifuge or use preservatives). If testing cannot be performed within one hour after collection, the
specimen should be refrigerated at 2-10° C immediately and returned to room temperature before
testing. Mix specimen thoroughly before testing.
Click here for Package Inserts and other Documentation for our Specific Gravity Reagents.
