Chemtron Analytical Instruments [P] Ltd. Supplies Individually Pressure Tested Tissue Culture Flasks. Chemtron Analytical Instruments [P] Ltd. Offers high quality scientific X-ray with digital imaging equipments. Chemtron Analytical Instruments [P] Ltd supplies wide range of products like tissue culture plastic-wares, disposable/ reusable plastics, pyrex borosilicate glassware, scientific equipments, liquid handling products, cryogenic equipments and storage systems which are ISO 9002 certified. Individually Pressure Tested Tissue Culture Flasks is suitable or leaks. Individually Pressure Tested Tissue Culture Flasks has wide neck design which allows convenient cell scrapping and pipetting. Two position double scale cap of this tissue culture flasks allows airtight and manual venting. Filter cap flasks incorporating 0.22 um hydrophobic membrane filter permits controlled gas exchange while maintaining a contamination free atmosphere.