Celcius
Urinary pH Test: The pH of the urine indicates how the body is working to maintain the proper pH of the blood. The urine reveals the alkaline building (anabolic) and acid tearing down (catabolic) cycles. The pH of urine indicates the efforts of the body via the kidneys, adrenals, lungs and gonads to regulate pH through the buffer salts and hormones. Urine can provide a fairly accurate picture of body chemistry, because the kidneys filter out the buffer salts of pH regulation and provide values based on what the body is eliminating. Urine pH can vary from around 4.5 to 9.0 for its extremes, but the ideal range is 5.8 to 6.8.
To understand the other aspects of pH testing follow the link!
http://home.bluegrass.net/~jclark/coral_calcium.htm