{"product_id":"flairform-ph-buffer-7","title":"pH Buffer 7.0 by Flairform — pH Meter Calibration Solution","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; max-width: 860px; margin: 0 auto; color: #1a1a1a;\"\u003e\n\u003cp style=\"font-size: 1.05rem; line-height: 1.7; margin-bottom: 1.5rem;\"\u003eFlairform pH Buffer 7.0 is a calibration solution for pH meters, made to the internationally agreed recipe with NIST-specified ingredients. It's the first point in every proper calibration — the neutral reference that sets your meter's offset before pH Buffer 4.0 confirms the slope. Professional practice calls for both: two buffers at least three pH units apart, so you know the electrode and meter are ranging correctly. Stabilised against algae growth for exceptional shelf life. Available in 250ml and 1L.\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem;\"\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eNIST-Specified Ingredients\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eFormulated to the internationally agreed buffer recipe — your meter calibrates against a genuine analytical reference.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eThe First Calibration Point\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eEvery 2-point calibration starts at 7.0 — the neutral reference that sets the offset before 4.0 confirms the slope.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eStabilised Against Algae\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eGrowths contaminate electrodes and distort calibration. This buffer resists them for exceptional shelf life.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f4f9f4; border-left: 4px solid #2e5e2e; padding: 1rem 1.2rem; border-radius: 6px;\"\u003e\n\u003cstrong style=\"display: block; margin-bottom: 0.3rem; color: #2e5e2e;\"\u003eSafe to Handle\u003c\/strong\u003e\u003cspan style=\"font-size: 0.9rem; color: #444;\"\u003eNon-hazardous, non-corrosive and a non-dangerous good per the safety data sheet — no PPE needed in normal use.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 1.1rem; font-weight: bold; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 2rem; margin-bottom: 2rem; font-size: 0.95rem;\"\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Flairform\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSizes:\u003c\/strong\u003e 250ml and 1L\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBuffer value:\u003c\/strong\u003e pH 7.0\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Potassium \u0026amp; sodium phosphate (aqueous)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWhen to use:\u003c\/strong\u003e Calibrating pH electrodes\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e Non-hazardous, non-corrosive, non-dangerous good\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f9a825; padding: 1rem 1.3rem; border-radius: 6px; margin-bottom: 2rem;\"\u003e\n\u003cstrong style=\"color: #e65100; display: block; margin-bottom: 0.5rem;\"\u003eGrow Guys Tip — Calibrate Like a Lab\u003c\/strong\u003e\n\u003cul style=\"margin: 0 0 0 1.2rem; padding: 0; font-size: 0.93rem; line-height: 1.7;\"\u003e\n\u003cli\u003eAlways calibrate 2-point: this pH 7.0 first, then 4.0. Single-point calibration on 7.0 alone can't confirm the slope — some meter brands claim it's enough, professional practice says otherwise.\u003c\/li\u003e\n\u003cli\u003eNever dip the probe into the bottle. Decant a small amount into a clean cup and discard it after use — dipping contaminates the whole bottle.\u003c\/li\u003e\n\u003cli\u003eKeep the bottle closed and stored cool and dark. Contaminated or degraded buffer means calibrating to a wrong reference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 1.1rem; font-weight: bold; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eHow to Use\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 2rem;\"\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: bold; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e1\u003c\/span\u003e\n\u003cdiv\u003eClean the electrode first — a fouled probe calibrates to bad numbers.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: bold; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e2\u003c\/span\u003e\n\u003cdiv\u003eDecant a small amount of this pH Buffer 7.0 and calibrate the first point per your meter's manual, then rinse the probe.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; border-bottom: 1px solid #edf3ed; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: bold; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e3\u003c\/span\u003e\n\u003cdiv\u003eCalibrate the second point in pH Buffer 4.0 to confirm the slope.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; gap: 14px; padding: 12px 0; font-size: 0.93rem; line-height: 1.6;\"\u003e\n\u003cspan style=\"background: #2e5e2e; color: #fff; font-weight: bold; font-size: 0.85rem; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;\"\u003e4\u003c\/span\u003e\n\u003cdiv\u003eDiscard the used buffer, rinse the probe and return it to storage solution. Recalibrate on your meter's schedule or whenever readings drift.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 1.1rem; font-weight: bold; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003ePairs Well With\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem;\"\u003e\n\u003ca href=\"\/products\/flairform-ph-buffer-4\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eFlairform pH Buffer 4.0\u003c\/strong\u003e\n\u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eThe other half of the 2-point calibration — 7.0 sets the offset, 4.0 confirms the slope.\u003c\/p\u003e\n\u003c\/a\u003e\u003ca href=\"\/products\/flairform-ph-electrode-storage\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003eFlairform pH Electrode Storage\u003c\/strong\u003e\n\u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eAfter calibrating, store the probe in solution — never dry, never in buffer.\u003c\/p\u003e\n\u003c\/a\u003e\u003ca href=\"\/collections\/ph-control-calibration-ph-ec\" style=\"text-decoration: none; color: inherit; background: #f4f9f4; border: 1px solid #c8dfc8; padding: 1rem; border-radius: 6px; display: block;\"\u003e\u003cstrong style=\"color: #2e5e2e; display: block; margin-bottom: 0.3rem;\"\u003epH Control \u0026amp; Calibration\u003c\/strong\u003e\n\u003cp style=\"font-size: 0.85rem; margin: 0;\"\u003eCleaners, standards and pH adjusters — the full accuracy toolkit.\u003c\/p\u003e\n\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 1.1rem; font-weight: bold; border-bottom: 2px solid #2e5e2e; padding-bottom: 0.4rem; margin-bottom: 1rem;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eIs calibrating with pH Buffer 7.0 alone enough?\u003c\/summary\u003e\n\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eNo. Some manufacturers claim their meters only need 7.0, but professional practice stipulates two buffers at least three pH units apart. One point sets the offset but can't verify the slope — a meter that reads 7.0 correctly can still be wrong at 5.8, exactly where your nutrient solution sits.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eWhich buffer do I use first, 7.0 or 4.0?\u003c\/summary\u003e\n\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003e7.0 first, always. The neutral point sets the meter's offset, then 4.0 sets the slope. Rinse the probe between buffers so you don't carry one into the other.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eCan I store my pH probe in this buffer between uses?\u003c\/summary\u003e\n\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eNo. pH buffers are not suitable for storing pH electrodes — they can upset electrode calibration. Use a dedicated storage solution like Flairform pH Electrode Storage instead.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eHow often should I calibrate my pH meter?\u003c\/summary\u003e\n\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eFollow your meter's manual, and recalibrate any time readings drift or respond slowly. Well-maintained probes stored in proper solution hold calibration far longer than probes stored dry.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 0.8rem; border: 1px solid #e0e0e0; border-radius: 6px; padding: 0.8rem 1rem;\" open=\"\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer;\"\u003eIs this buffer hazardous?\u003c\/summary\u003e\n\u003cp style=\"margin: 0.6rem 0 0; font-size: 0.93rem; line-height: 1.6;\"\u003eNo. Per the safety data sheet it is non-hazardous, non-corrosive and a non-dangerous good — a dilute phosphate solution requiring no PPE in normal use. Keep it out of waterways, as it promotes algae growth.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdiv style=\"background: #1c3a1c; color: #fff; padding: 2rem; border-radius: 10px; text-align: center; margin-top: 2rem;\"\u003e\n\u003ch2 style=\"color: #fff !important; margin: 0 0 0.5rem; font-size: 1.3rem;\"\u003eEvery Calibration Starts at 7.0\u003c\/h2\u003e\n\u003cp style=\"color: #aed1ae !important; margin: 0 0 1.5rem; font-size: 0.95rem;\"\u003eSet the offset, then confirm the slope. Free shipping over $499*.\u003c\/p\u003e\n\u003cdiv style=\"margin: 0 0 1.5rem;\"\u003e\n\u003cp style=\"font-size: 0.95rem; font-weight: bold; margin-bottom: 0.75rem; color: #fff;\"\u003eSelect Size\u003c\/p\u003e\n\u003cdiv style=\"display: flex; justify-content: center; gap: 0.75rem; flex-wrap: wrap;\"\u003e\n\u003cbutton data-variant-id=\"52071712227626\" class=\"tgg-size-btn-ff-ph7\" style=\"padding: 0.6rem 1.4rem; border: 2px solid #fff; border-radius: 6px; background: #fff; color: #1c3a1c; font-size: 0.95rem; font-weight: bold; cursor: pointer;\"\u003e250ml — $12.95\u003c\/button\u003e \u003cbutton data-variant-id=\"52071712260394\" class=\"tgg-size-btn-ff-ph7\" style=\"padding: 0.6rem 1.4rem; border: 2px solid #fff; border-radius: 6px; background: transparent; color: #fff; font-size: 0.95rem; font-weight: 600; cursor: pointer;\"\u003e1L — $24.95\u003c\/button\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap;\"\u003e\n\u003cbutton id=\"btn-add-to-cart\" style=\"background: #b67317 !important; color: #fff !important; padding: 0.85rem 2rem !important; border: none !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 700 !important; cursor: pointer !important;\"\u003eAdd to Cart\u003c\/button\u003e \u003ca href=\"\/collections\/ph-control-calibration-ph-ec\" style=\"background: transparent !important; color: #fff !important; padding: 0.85rem 2rem !important; border: 2px solid #fff !important; border-radius: 6px !important; font-size: 1rem !important; font-weight: 600 !important; text-decoration: none !important; display: inline-block !important;\"\u003eShop pH Control\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  var btn = document.getElementById('btn-add-to-cart');\n  if (!btn) return;\n\n  var selectedVariantId = '52071712227626';\n\n  var sizeBtns = document.querySelectorAll('.tgg-size-btn-ff-ph7');\n  sizeBtns.forEach(function(b) {\n    b.addEventListener('click', function() {\n      selectedVariantId = this.getAttribute('data-variant-id');\n      sizeBtns.forEach(function(ob) {\n        ob.style.background = 'transparent';\n        ob.style.color = '#fff';\n        ob.style.fontWeight = '600';\n      });\n      this.style.background = '#fff';\n      this.style.color = '#1c3a1c';\n      this.style.fontWeight = '700';\n    });\n  });\n\n  btn.addEventListener('click', function() {\n    fetch('\/cart\/add.js', {\n      method: 'POST',\n      headers: {'Content-Type': 'application\/json'},\n      body: JSON.stringify({id: parseInt(selectedVariantId, 10), quantity: 1})\n    }).then(function(response) {\n      return response.json();\n    }).then(function(data) {\n      if (data.status \u0026\u0026 data.status !== 200) { throw new Error(data.description); }\n      btn.textContent = 'Added to Cart';\n      btn.style.background = '#2e5e2e';\n      setTimeout(function() {\n        btn.textContent = 'Add to Cart';\n        btn.style.background = '#b67317';\n      }, 2000);\n    }).catch(function() {\n      btn.textContent = 'Error — Try Again';\n      btn.style.background = '#c0392b';\n      setTimeout(function() {\n        btn.textContent = 'Add to Cart';\n        btn.style.background = '#b67317';\n      }, 2500);\n    });\n  });\n});\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Flairform","offers":[{"title":"250ml","offer_id":52071712227626,"sku":"FF-MTR-PH7-250","price":12.95,"currency_code":"AUD","in_stock":true},{"title":"1L","offer_id":52071712260394,"sku":"FF-MTR-PH7-1L","price":24.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/1573\/3290\/files\/7870-pH-Buffer-7-250ml.png?v=1783918871","url":"https:\/\/www.thegrowguys.com.au\/products\/flairform-ph-buffer-7","provider":"The Grow Guys","version":"1.0","type":"link"}