{"product_id":"buffer-solution-ph-4-01-500-ml-bottle-hanna-instruments-hi7004l","title":"Buffer Solution, pH 4.01, 500 mL Bottle, Hanna Instruments, HI7004L","description":"\u003cp\u003e\u003cstrong\u003eHanna Instruments™ Buffer Solution, pH 4.01, 500 mL Bottle, HI7004L\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAppearance:  colorless liquid\u003c\/li\u003e \u003cli\u003eStandardized with a pH meter calibrated to NIST standards\u003c\/li\u003e \u003cli\u003eProduced in accordance to ISO 3696\/BS3978 standards using high purity salts, deionized water, certified weight-check balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers\u003c\/li\u003e \u003cli\u003eAir tight bottle with tamper-proof seal to ensure quality and freshness\u003c\/li\u003e \u003cli\u003eEach bottle marked with lot number and expiration date\u003c\/li\u003e \u003cli\u003eFormulated to have an expiration of 5 years from manufacture for an unopened bottle\u003c\/li\u003e \u003cli\u003eColor-coded label for easy pH identification\u003c\/li\u003e \u003cli\u003eSolution does not contain any dyes that may stain the reference cell of a pH electrode\u003c\/li\u003e \u003cli\u003eTemperature chart of the actual pH value at various temperatures on each bottle\u003c\/li\u003e \u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"EA (1)","offer_id":51111581417787,"sku":"HAN-HI7004L-EA","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/HAN-HI7004L.png?v=1784719550","url":"https:\/\/preiser.com\/products\/buffer-solution-ph-4-01-500-ml-bottle-hanna-instruments-hi7004l","provider":"Preiser Scientific","version":"1.0","type":"link"}