{"product_id":"flask-pyrex-volumetric-lifetime-red-class-a-standard-taper-stopper-50-ml-corning-5660-50","title":"Flask, Pyrex, Volumetric, Lifetime Red, Class A, Standard Taper Stopper, 50 mL, Corning 5660-50","description":"\u003cp\u003eThese 50 mL Class A PYREX® Lifetime Red volumetric flasks have the capacity mark etched as a fine line through a narrow red band into clear glass, making a filler unnecessary and giving high legibility, accuracy and permanence. The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-tubing necks tooled for No. 9 Standard Taper glass stoppers. These Class A volumetric flasks have been manufactured to Class A tolerances as established by ASTM E- 694 for volumetric ware, ASTM E-542 for calibration of volumetric ware and ASTM E-288 for volumetric flasks.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e","brand":"Corning","offers":[{"title":"EA (1)","offer_id":51110631571771,"sku":"12-7050-53-EA","price":45.87,"currency_code":"USD","in_stock":true},{"title":"PK (6)","offer_id":51110631604539,"sku":"12-7050-53-PK","price":275.22,"currency_code":"USD","in_stock":true},{"title":"CS (12)","offer_id":51110631637307,"sku":"12-7050-53-CS","price":550.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/12-7050-53.png?v=1784697771","url":"https:\/\/preiser.com\/products\/flask-pyrex-volumetric-lifetime-red-class-a-standard-taper-stopper-50-ml-corning-5660-50","provider":"Preiser Scientific","version":"1.0","type":"link"}