Factory Tour Laboratory Certifications Menu Factory Tour Laboratory Certifications Basic testing we run in our internal herbal extract laboratory MR Natural owns independant herbal extract laboratory.For every single batch herbal extract, we run regular testing in internal laboratory.Including following items:Herb IdentificationThin Layer chromatography(TLC)Active Ingredients contentUV spectrophotometer(UV)High performance liquid chromatography(HPLC)Gas chromatography(GC)Sieve Analysis80/100 mesh screenLoss on drying Ash Heavy Metal(Pb,As,Hg,Cd)Atomic absorption spectrophotometer(AAS)MicrobiologicalTotal Plate CountYeast & MoldSalmonellaE.ColiMicrobiological laboratory Equipment in our internal herbal extract laboratory Internal laboratory UV spectrophotometer(UV) High performance liquid chromatography(HPLC) High performance liquid chromatography(HPLC) Gas chromatography(GC) Electronic balance Constant temperature water bath Electric heating constant temperature drying oven For items customer requested or items we’re not able to test, we test in third party lab, such as Eurofin, SGS, PONY and other foreign lab.