{"product_id":"astralpool-rolachem-ph-calibration-solution-4-0-100ml-600143","title":"Astralpool \/ Rolachem pH Calibration Solution - 4.0 - 100ml - 600143","description":"\u003ch3\u003eAstralPool \/ RolaChem pH 4.0 Calibration Solution – 100mL – 600143\u003c\/h3\u003e\n\n\u003cp\u003eGenuine \u003cstrong\u003eAstralPool \/ RolaChem \/ Fluidra pH 4.0 calibration solution\u003c\/strong\u003e for calibrating swimming pool and spa pH probes, sensors and automatic water chemistry controllers.\u003c\/p\u003e\n\n\u003cp\u003eSupplied as a genuine AstralPool \/ RolaChem part, but the solution itself is a standard \u003cstrong\u003epH 4.0 reference buffer\u003c\/strong\u003e and is not brand-specific. pH 4.0 is one of the most widely used calibration reference values across the industry, so this solution can be used with other brands of pH probe, controller and handheld meter wherever a pH 4.0 buffer is specified.\u003c\/p\u003e\n\n\u003cp\u003epH probes can gradually drift as they age and are exposed to pool water, chemicals and contamination. Calibration against a known reference solution allows the controller to accurately determine the response of the probe and maintain reliable pH measurements and chemical dosing.\u003c\/p\u003e\n\n\u003ch3\u003epH 4.0 Calibration Reference\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003epH 4.0\u003c\/strong\u003e is commonly used as one of the reference points during pH probe calibration. On systems using two-point calibration, it is generally used together with a neutral reference solution to determine both the probe offset and response slope.\u003c\/p\u003e\n\n\u003cp\u003eThis provides a more complete calibration of the pH sensor and can help identify a probe that has become contaminated, slow to respond or reached the end of its service life.\u003c\/p\u003e\n\n\u003ch3\u003eUse With Other Brands of pH Probe\u003c\/h3\u003e\n\n\u003cp\u003epH calibration solution is a chemical reference standard rather than a branded consumable. What matters is the reference value the equipment is calibrated against, not the badge on the bottle.\u003c\/p\u003e\n\n\u003cp\u003eIf the manufacturer of your pH probe, controller, dosing system or handheld meter specifies calibration against a \u003cstrong\u003epH 4.0\u003c\/strong\u003e buffer, this product can be used. That makes it a semi-universal pH 4.0 reference suitable for a wide range of pool, spa and water treatment pH sensing equipment, not only AstralPool and RolaChem.\u003c\/p\u003e\n\n\u003cp\u003eWhere a two-point calibration is required, this pH 4.0 solution is used alongside the second reference value nominated by your equipment manufacturer. Check the reference values stated in your calibration procedure before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAstralPool automatic pH control systems\u003c\/li\u003e\n\u003cli\u003eRolaChem pH dosing and control equipment where pH 4.0 calibration is specified\u003c\/li\u003e\n\u003cli\u003eFluidra pool and spa chemical dosing controllers\u003c\/li\u003e\n\u003cli\u003eZodiac \/ Fluidra pH control systems\u003c\/li\u003e\n\u003cli\u003eSalt chlorination systems incorporating pH sensing and automatic acid dosing\u003c\/li\u003e\n\u003cli\u003eOther brands of pH probe, controller or handheld meter requiring a \u003cstrong\u003epH 4.0 buffer solution\u003c\/strong\u003e during calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCalibration Procedure\u003c\/h3\u003e\n\u003cp\u003eAlways follow the calibration procedure specified for your particular controller or meter. A typical pH probe calibration procedure involves:\u003c\/p\u003e\n\n\u003col\u003e\n\u003cli\u003eStop automatic chemical dosing and isolate the probe as required by the controller manufacturer.\u003c\/li\u003e\n\u003cli\u003eRemove the pH probe and rinse it thoroughly with clean water.\u003c\/li\u003e\n\u003cli\u003ePlace the probe into the specified calibration solution.\u003c\/li\u003e\n\u003cli\u003eAllow the reading to stabilise.\u003c\/li\u003e\n\u003cli\u003eComplete the calibration procedure through the controller.\u003c\/li\u003e\n\u003cli\u003eFor two-point calibration systems, rinse the probe thoroughly before moving between different reference solutions.\u003c\/li\u003e\n\u003cli\u003eRinse the probe before returning it to service.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference value:\u003c\/strong\u003e pH 4.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottle size:\u003c\/strong\u003e 100mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Australian Part Number:\u003c\/strong\u003e 600143\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e pH buffer \/ calibration solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e pH probe and sensor calibration on pool, spa and water treatment equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e AstralPool \/ RolaChem \/ Fluidra\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAssociated Fluidra Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e600143\u003c\/strong\u003e – pH 4.0 Calibration Solution, 100mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e70947\u003c\/strong\u003e – Fluidra Calibration Solution pH 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60632\u003c\/strong\u003e – Fluidra Calibration Solution pH 4.0, 50mL, Red\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFluidra has used different part numbers and pack sizes for pH 4 calibration solutions across different product ranges, markets and catalogue periods. Check the required bottle size and controller calibration procedure before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eImportant\u003c\/h3\u003e\n\u003cp\u003eThis is a \u003cstrong\u003epH 4.0 calibration reference solution\u003c\/strong\u003e. It is not pool acid, pH reducer or ORP calibration solution and should not be added directly to the swimming pool or spa.\u003c\/p\u003e\n\n\u003cp\u003eDifferent controllers can specify different calibration reference values. Always use the calibration solution specified for your particular pH probe, controller or meter.\u003c\/p\u003e\n","brand":"Heater and Spa Parts","offers":[{"title":"Default Title","offer_id":48396825657533,"sku":"600143","price":55.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-rolachem-ph-calibration-solution-4-0-100ml-600143-chemicals-587.webp?v=1788762728","url":"https:\/\/heaterandspaparts.com.au\/products\/astralpool-rolachem-ph-calibration-solution-4-0-100ml-600143","provider":"Heater and Spa Parts","version":"1.0","type":"link"}