Biologically neutral. DIN Standard 18271. Meets FDA/BGA standards. Non-toxic and chemically and biologically neutral. Highly recommended for all tissue culture work. Suitable for temperatures between -94F and +482F (-70C and +250C). Odorless and tasteless. Non-adherent and resistant to aging. Ideal in biology, micro-biology and hematology, as well as food science, technical, medical and hospital apparatus.