Abstract: A litter package has a body of litter within a container of waterproof material and is for use by a pet animal after the package has been opened to expose the litter substantially throughout the area of the container when disposed for use. The litter body consists of particles of absorbent material or materials that are chemically neutral when wet. Testing means are associated with the litter and of an indicator type changing color if wetted by urine containing a color-changing reactant indicating an unfavorable health condition. The testing means may be incorporated in litter material, carried on the inner surface of the container or on inserts in any case when the package is open, the testing means includes at least one unitary portion under each position the animal may occupy while urinating and of an area such as to become wetted at least in part by contact with urine-wetted particles in the normal use thereof thus to be subject to the reactant throughout a predetermined time.

Abstract: A litter package has a body of litter within a container of waterproof material and is for use by a pet animal after the package has been opened to expose the litter substantially throughout the area of the container when disposed for use. The litter body consists of particles of absorbent material or materials that are chemically neutral when wet. Testing means are associated with the litter and of an indicator type changing color if wetted by urine containing a color-changing reactant indicating an unfavorable health condition. The testing means may be incorporated in litter material, carried on the inner surface of the container or on inserts in any case when the package is open, the testing means includes at least one unitary portion under each position the animal may occupy while urinating and of an area such as to become wetted at least in part by contact with urine-wetted particles in the normal use thereof thus to be subject to the reactant throughout a predetermined time.