Specimen Validity Testing (SVT) Market Is Expected To Witness Faster Growth During The Forecast Period 2021-2030 In Asia Pacific - Report By Acumen Research And Consulting LOS ANGELES, April 22, 2021 (GLOBE NEWSWIRE) -- Specimen validity testing (SVT) is performed on a urine drug screen specimen to measure the pH, and specific gravity, ensuring that no adulterant has...