{"product_id":"hanna-instruments-hi88703-11-turbidity-calibration-standards-0-to-4000-ntu-set","title":"Hanna Instruments HI88703-11 Turbidity Calibration Standards — 0 to 4000 NTU Set","description":"\u003cdiv class=\"btsx-hanna-desc\" style=\"max-width: 1400px; margin: 0 auto; padding: clamp(16px, 4vw, 40px) clamp(16px, 4vw, 20px); font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-weight: 300; font-size: 1rem; line-height: 1.65; color: #222; width: 100%; box-sizing: border-box; overflow-wrap: anywhere;\"\u003e\n\u003cstyle\u003e\/* btsx-hanna-mobile-v2 - secondary layer; this storefront theme strips \u003cstyle\u003e from descriptionHtml, so the inline styles above are authoritative *\/\n.btsx-hanna-desc{width:100%;max-width:1400px;margin:0 auto;box-sizing:border-box;padding:clamp(16px, 4vw, 40px) clamp(16px, 4vw, 20px);overflow-wrap:anywhere;}\n.btsx-hanna-desc *{box-sizing:border-box;min-width:0;}\n.btsx-hanna-row{display:flex;flex-wrap:wrap;gap:clamp(20px, 4vw, 40px);min-width:0;}\n.btsx-hanna-col,.btsx-hanna-fig{min-width:0;max-width:100%;}\n.btsx-hanna-sec{margin:0 0 clamp(24px, 4vw, 40px);padding-bottom:clamp(24px, 4vw, 40px);min-width:0;}\n.btsx-hanna-img{max-width:100%;max-height:320px;height:auto;object-fit:contain;}\n.btsx-hanna-img-screen{max-width:220px;max-height:300px;height:auto;object-fit:contain;}\n.btsx-hanna-tablewrap{width:100%;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;}\n.btsx-hanna-tablewrap table{min-width:640px;}\n@media screen and (max-width:640px){\n.btsx-hanna-row{flex-direction:column!important;flex-wrap:nowrap!important;gap:20px!important;}\n.btsx-hanna-col,.btsx-hanna-fig{flex:1 1 100%!important;min-width:0!important;width:100%!important;}\n.btsx-hanna-sec{margin:0 0 24px!important;padding-bottom:24px!important;}\n.btsx-hanna-desc img{max-width:100%!important;height:auto!important;}\n.btsx-hanna-img-screen{max-width:220px!important;max-height:300px!important;}\n}\u003c\/style\u003e\n\u003csection class=\"btsx-hanna-sec\" style=\"border-bottom: 1px solid #e0e0e0; margin: 0 0 clamp(24px, 4vw, 40px); padding-bottom: clamp(24px, 4vw, 40px); min-width: 0; box-sizing: border-box;\"\u003e\u003cp style=\"margin: 0 0 16px;\"\u003eThe HI88703-11 Turbidity Calibration Standards give laboratories a ready-made way to calibrate and validate turbidity meters working over a 0 to 4000 NTU range. The standards are made from NIST traceable primary reference materials and ship with a certificate of analysis that records the lot number, the reference values and the expiration date, so each calibration can be traced back to the material used.\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 16px; padding-left: 22px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eSupplied with a certificate of analysis\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eStandard values of below 0.10, 15.0, 100, 750 and 2000 NTU\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eReusable, with long shelf life stability\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"btsx-hanna-sec\" style=\"border-bottom: 1px solid #e0e0e0; margin: 0 0 clamp(24px, 4vw, 40px); padding-bottom: clamp(24px, 4vw, 40px); min-width: 0; box-sizing: border-box;\"\u003e\u003cp style=\"margin: 0 0 16px;\"\u003eA nephelometric turbidity meter is built to be standardised routinely against a known light-scattering reference. Like any analytical standard, a turbidity standard has to do several jobs at once: provide traceability, demonstrate that results are accurate, calibrate both the instrument and the methodology, monitor operator performance, validate tests and make results comparable. Standardisation is what makes the same analysis of the same material agree with itself whenever it is run.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003eHanna prepares its turbidity standards from AMCO AEPA-1 material, which is recognised for stability and reliability in standardisation work. The standard is a suspension of cross-linked styrene divinylbenzene copolymer microbeads held in ultrapure water. The beads are chemically inert and hold their balance in a water medium whatever the concentration, and their particle size, uniform spherical shape and refractive index make them well suited to characterising how light is absorbed and scattered at 90° in the UV-visible range. The shape and size of the beads also work against accumulation and precipitation, which is a large part of why the material stays stable.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003eThe standards are prepared and bottled in a clean room, then tested and validated for accuracy and stability and certified free of toxic chemicals or compounds. Every prepared standard is compared against formazin turbidity standard solutions, and the values obtained along with the date of analysis are reported on the certificate of analysis supplied with the set.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"btsx-hanna-sec\" style=\"border-bottom: 1px solid #e0e0e0; margin: 0 0 clamp(24px, 4vw, 40px); padding-bottom: clamp(24px, 4vw, 40px); min-width: 0; box-sizing: border-box;\"\u003e\u003cp style=\"margin: 0 0 16px;\"\u003eHI88703-11 is a high quality set for validating and calibrating turbidity meters across the 0 to 4000 NTU range. The set holds five cuvettes with expected readings of below 0.10, 15.0, 100, 750 and 2000 NTU, produced in Hanna’s manufacturing facility from NIST traceable reference materials in a temperature controlled environment.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"btsx-hanna-sec\" style=\"border-bottom: 1px solid #e0e0e0; margin: 0 0 clamp(24px, 4vw, 40px); padding-bottom: clamp(24px, 4vw, 40px); min-width: 0; box-sizing: border-box;\"\u003e\u003cdiv class=\"btsx-hanna-row\" style=\"display: flex; flex-wrap: wrap; gap: clamp(20px, 4vw, 40px); min-width: 0; box-sizing: border-box;\"\u003e\n\u003cdiv class=\"btsx-hanna-col\" style=\"flex: 1 1 500px; min-width: 0; max-width: 100%; box-sizing: border-box;\"\u003e\n\u003ch3 class=\"btsx-hanna-h\" style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-weight: 400; font-size: 1rem; margin: 0 0 20px; min-width: 0;\"\u003eSupplied with Certificate of Analysis\u003c\/h3\u003e\n\u003cul style=\"margin: 0 0 16px; padding-left: 22px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eLot number\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eExpiration date\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eStandard value\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eReference meter NIST traceable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"btsx-hanna-col\" style=\"flex: 1 1 500px; min-width: 0; max-width: 100%; box-sizing: border-box;\"\u003e\n\u003ch3 class=\"btsx-hanna-h\" style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-weight: 400; font-size: 1rem; margin: 0 0 20px; min-width: 0;\"\u003eProvided storage containers\u003c\/h3\u003e\n\u003cul style=\"margin: 0 0 16px; padding-left: 22px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eLight tight\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eProtects from accidental breakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"btsx-hanna-sec-last\" style=\"margin: 0; min-width: 0; box-sizing: border-box;\"\u003e\u003cp style=\"margin: 0 0 16px;\"\u003eChecking the turbidity range on a \u003ca href=\"\/products\/hanna-hi88703-01-epa-compliant-benchtop-turbidity-meter\" style=\"color: #0a5c9e; text-decoration: underline;\"\u003eHanna HI88703 benchtop turbidity meter\u003c\/a\u003e or a \u003ca href=\"\/products\/hanna-instruments-hi83414-01-epa-benchtop-turbidity-chlorine-meter\" style=\"color: #0a5c9e; text-decoration: underline;\"\u003eHanna HI83414 turbidity and chlorine meter\u003c\/a\u003e is quick and straightforward with the HI88703-11 standards. Replace the set once the expiration date printed on the certificate of analysis has passed.\u003c\/p\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":52807136608554,"sku":"BTS-HI88703-11","price":164.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/turbidity-calibration-standard-cuvette-hi88703-11__72496.1568667074.jpg?v=1790823280","url":"https:\/\/bluetigerscientific.com\/products\/hanna-instruments-hi88703-11-turbidity-calibration-standards-0-to-4000-ntu-set","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}