{"product_id":"calibration-fluid-ph-buffer-40","title":"CALIBRATION FLUID pH BUFFER 4.0 1LT FERNLAND PHBUFF4-1","description":"\u003cp id=\"c1-id-18\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003epH Buffer 4 is a solution of known and exact pH.\u003c\/p\u003e\u003cp id=\"c1-id-20\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003eIf your pH meter doesn’t read pH 4 when the probe is put into the buffer then the meter is wrong and needs calibrating.\u003c\/p\u003e\u003cp id=\"c1-id-21\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003eIt is recommend that the meter is checked with pH 7 Buffer at least once a week, and checked with pH 4 buffer at least monthly.\u003c\/p\u003e\u003cp id=\"c1-id-23\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003eEach pH meter comes with instructions on how to calibrate the meter.\u003c\/p\u003e\u003cp id=\"c1-id-24\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003ePour enough buffer from the bottle to cover the glass end of the probe when calibrating, and discard the solution after.\u003c\/p\u003e\u003cp id=\"c1-id-26\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003eIt isn’t best practice to return used buffer to the bottle it came from.\u003c\/p\u003e\u003cp id=\"c1-id-28\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003eCorrect pH of hydroponic nutrient solutions is critical.\u003c\/p\u003e\u003cp id=\"c1-id-29\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003eMineral absorption by the roots is pH dependent. If the pH is outside the range of pH 5.5 to pH 6.5 then plants will have increasing difficulty absorbing minerals and a mineral deficiency would soon develop even though in all other respects the hydroponic nutrient is OK.\u003c\/p\u003e\u003cp id=\"c1-id-30\" xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"\u003eThe pH should be checked when the nutrient solution is first made, and if used in a recirculating system, the pH should be checked every day.\u003c\/p\u003e","brand":"TGRM","offers":[{"title":"Default Title","offer_id":47844692426994,"sku":"PHBUFF4-1","price":24.6,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/0528\/5106\/files\/PHBUFF4-1_596c1ebf-7751-4164-afa2-27bea1e678eb.jpg?v=1760604132","url":"https:\/\/tgrm.com.au\/products\/calibration-fluid-ph-buffer-40","provider":"Tom Grady Rural Merchandise","version":"1.0","type":"link"}