{"product_id":"hanna-instruments-hi-70701l-fluoride-standard-solution-at-1-g-l-f-500ml","title":"Hanna Instruments HI-70701L Fluoride Standard Solution at 1 g\/L F-, 500ml","description":"\u003cp\u003eHI-70701L is a premium quality 1 g\/L fluoride standard solution. Hanna ISE standards have the lot number and expiry date clearly marked on the label. \u003c\/p\u003e\u003cp\u003eHI-70701L is a 1 g\/L standard solution of fluoride used to calibrate the fluoride solid state ion selective electrode (ISE). Hanna ISE standard solutions are manufactured with high purity chemicals and bottled in our own state-of-the-art facility.\u003c\/p\u003e \u003cp\u003eISEs require calibration for accurate readings when performing measurement techniques such as direct measurement and incremental methods. Calibration of up to two points is recommended for enhanced accuracy. Volumetric glassware can be used to make dilutions of standard solutions to bracket the expected concentration of the sample to be measured. ISE calibration standards and sample solutions should always have the same ionic strength; the exact volume of ionic strength adjuster (ISA) must be added to all standards and samples prior to measurement.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAir tight bottle with tamper-proof seal\u003c\/li\u003e \u003cli\u003eEnsures quality and freshness of solution\u003c\/li\u003e \u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640076444021,"sku":"HI-70701L","price":58.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-70701l-fluoride-standard-solution-at-1-g-l-f.jpg?v=1791580627","url":"https:\/\/testallwater.co.uk\/products\/hanna-instruments-hi-70701l-fluoride-standard-solution-at-1-g-l-f-500ml","provider":"Test All Water","version":"1.0","type":"link"}