USP medium for total aerobic portion of microbial limit test. A primary media for preparing blood plates.||Tryptic soy agar (TSA) is a general-purpose base medium used for the cultivation of fastidious microorganisms. TSA is a highly nutritious medium consisting of soybean-casein digest. The addition of blood to TSA facilitates the growth of more fastidious microorganisms. Allowing for the interpretation of hemolytic reactions||Appearance: |Tan, homogenous, free flowing powder||Solubility: |Yellow to amber, trace to slightly hazy after autoclaving||pH: |As Reported||Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.