{"product_id":"orp-test-solution-at-470-mv-25-degrees-c-230-ml-bottle-hanna-instruments-hi7022m","title":"ORP Test Solution at 470 mV @ 25 Degrees C, 230 mL Bottle, Hanna Instruments, HI7022M","description":"\u003cp\u003e\u003cstrong\u003eHanna Instruments ORP Test Solution at 470 mV @ 25 Degrees C, 230 mL Bottle, HI7022M\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eHI 7022M is an ORP test solution at 470 mV (@ 25ºC that allows testing of the precision of ORP electrodes.  If the reading is outside the indicated interval of ±50 mV of the 470 mV value, the electrode should be cleaned and conditioned with either the Hanna® oxidizing or reducing pretreatment solution.  This test solution is formulated for testing platinum and gold ORP electrodes.This ORP standard is supplied in a 230 mL air tight bottle with a tamper-proof seal. A certificate of analysis which includes product code, lot number, and expiration date is provided. The test solutions are produced in a state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cdiv\u003e \u003c\/div\u003e \u003cdiv\u003e \u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"EA (1)","offer_id":51111581647163,"sku":"HAN-HI7022M-EA","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/HAN-HI7022M_0889a17f-d0e0-4534-9088-b236d49ec80b.png?v=1784719557","url":"https:\/\/preiser.com\/products\/orp-test-solution-at-470-mv-25-degrees-c-230-ml-bottle-hanna-instruments-hi7022m","provider":"Preiser Scientific","version":"1.0","type":"link"}