{"product_id":"horiba-tb220-turbidity-calibration-standard-solutions","title":"Horiba TB220 Turbidity Calibration Standard Solutions","description":"\u003cp\u003eSealed calibration standards for the HORIBA LAQUA TB220 portable turbidity meter. Each standard is supplied in a 50 mL vial at a certified NTU value, ready to place straight into the instrument — no dilution, no formazin preparation, no handling of hazardous stock suspensions.\u003c\/p\u003e\n\n\u003ch3\u003eChoose your set\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e550-TBP-4\u003c\/strong\u003e (part no. 3201063378) — full four-point set: 0.02, 20, 100 and 800 NTU. Calibrates the meter across its entire measuring range and is the right choice for a new instrument or an annual full recalibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e550-TBP-2L\u003c\/strong\u003e (part no. 3201063380) — low set: 0.02 and 20 NTU. For work concentrated at the clean end, such as finished drinking water and filter effluent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e550-TBP-2H\u003c\/strong\u003e (part no. 3201063381) — high set: 100 and 800 NTU. For turbid work such as raw water, stormwater and sediment monitoring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy the 0.02 NTU standard matters\u003c\/h3\u003e\n\u003cp\u003eThe low-end standard is what makes trustworthy drinking water measurement possible. Regulatory turbidity limits for filtered water sit well below 1 NTU, so an instrument calibrated only at higher values is being asked to extrapolate into precisely the range where the decision gets made. Calibrating at 0.02 NTU anchors the meter where your compliance readings actually fall.\u003c\/p\u003e\n\n\u003ch3\u003eHandling for accurate results\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInvert sealed standards gently before use — never shake, which introduces bubbles that scatter light and inflate readings\u003c\/li\u003e\n\u003cli\u003eLet the vial come to ambient temperature to prevent condensation on the glass\u003c\/li\u003e\n\u003cli\u003eWipe the vial clean and apply silicone oil to mask fine scratches before measuring\u003c\/li\u003e\n\u003cli\u003eAlways insert the vial in the same orientation, using the index mark\u003c\/li\u003e\n\u003cli\u003eStore out of direct sunlight and replace standards at the end of their stated shelf life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDrinking water treatment and distribution compliance calibration\u003c\/li\u003e\n\u003cli\u003eFilter performance verification and breakthrough monitoring\u003c\/li\u003e\n\u003cli\u003eStormwater and construction site discharge monitoring programs\u003c\/li\u003e\n\u003cli\u003eSurface water and watershed survey work\u003c\/li\u003e\n\u003cli\u003eWastewater effluent clarity verification\u003c\/li\u003e\n\u003cli\u003eDocumented instrument calibration under a laboratory quality system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated items\u003c\/h3\u003e\n\u003cp\u003eThe TB220 meter, spare sample vials, vial light shield covers, silicone oil and cloth sets and replacement carrying cases are all stocked — see the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba-parts-accessories\"\u003eHoriba Parts \u0026amp; Accessories\u003c\/a\u003e collection.\u003c\/p\u003e\n\n\u003cp\u003eBrowse all \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba\"\u003eHORIBA instruments\u003c\/a\u003e.\u003c\/p\u003e","brand":"Horiba","offers":[{"title":"550-TBP-4 - Four-Point Set 0.02, 20, 100 \u0026 800 NTU - 50 mL Each - 3201063378","offer_id":48226454208702,"sku":"3201063378","price":400.0,"currency_code":"USD","in_stock":true},{"title":"550-TBP-2L - Low Range Set 0.02 \u0026 20 NTU - 50 mL Each - 3201063380","offer_id":48226454241470,"sku":"3201063380","price":230.0,"currency_code":"USD","in_stock":true},{"title":"550-TBP-2H - High Range Set 100 \u0026 800 NTU - 50 mL Each - 3201063381","offer_id":48226454274238,"sku":"3201063381","price":255.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/csm_APAC-TB220-image-01_22b98e1aee_6a283c9e-a2c1-474b-ac18-8b24f8a02013.jpg?v=1785353581","url":"https:\/\/envirotechonline.com\/products\/horiba-tb220-turbidity-calibration-standard-solutions","provider":"EnviroTech Services","version":"1.0","type":"link"}