{"product_id":"flairform-calibration-solution-kit-ph-buffer-40-70-250ml","title":"Flairform Calibration Solution Kit - pH Buffer 4.0 \u0026 7.0 (250mL)","description":"\u003cp\u003e\u003cstrong\u003eIntroducing the Flairform Calibration Solution Kit - pH Buffer 4.0 \u0026amp; 7.0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003epH meters must be regularly 'calibrated' (i.e. adjusted for accuracy) using standard pH buffer solutions which are made to an internationally agreed recipe.\u003c\/p\u003e\n\u003cp\u003eIt is essential to calibrate using at least TWO pH buffers.\u003c\/p\u003e\n\u003cp\u003eThese need to differ in pH by at least three pH units over the pH range being used. For nutrient solutions, pH buffer 4.0 and 7.0 are the ideal calibration standards.\u003c\/p\u003e\n\u003cp\u003eSome manufacturers claim that their pH meters require calibration using only pH buffer 7.0. Professional practice however, stipulates using two buffers because this will confirm or otherwise that the correct calibration “slope” is being obtained i.e. that both the electrode and meter are ranging correctly.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFlairform’s buffers are formulated with NIST* specified ingredients.\u003c\/li\u003e\n\u003cli\u003eStabilised to resist algae or growth formation and provide exceptional shelf-life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKit Includes -\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003eFlairform Buffer 4.0 (250mL)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFlairform Buffer 7.0 (250mL)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flairform","offers":[{"title":"Default Title","offer_id":48519371981058,"sku":"rkx1789704414184","price":11.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5930\/4962\/files\/flairform-calibration-solution-kit---ph-buffer-40-70-250ml_1.jpg?v=1789704419","url":"https:\/\/desk-to-dinner-clad.shop\/products\/flairform-calibration-solution-kit-ph-buffer-40-70-250ml","provider":"My Store","version":"1.0","type":"link"}