{"product_id":"apera-t500-2-tn500-s2-ai4206","title":"Apera T500-2 AMCO 0 NTU Turbidity Calibration Standard, 100 mL (AI4206)","description":"\u003cdiv style=\"font-family:Open Sans,sans-serif;color:#26332C;font-weight:300;line-height:1.75;max-width:1400px;margin:0 auto;box-sizing:border-box;\"\u003e\n\u003csection style=\"padding:clamp(22px,4vw,40px);background:#F1F7F3;border:1px solid #B7D0BF;border-radius:12px;\"\u003e\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;gap:28px;\"\u003e\n\u003cdiv style=\"flex:1 1 340px;min-width:0;\"\u003e\n\u003cp style=\"color:#245B45;font-size:.8rem;font-weight:600;letter-spacing:.08em;\"\u003eAPERA INSTRUMENTS \/ T500-2 \/ TN500-S2 \/ AI4206\u003c\/p\u003e\n\u003ch2 style=\"color:#245B45;font-size:clamp(24px,3.5vw,34px);line-height:1.25;margin:0 0 20px;\"\u003eApera T500-2 AMCO 0 NTU Turbidity Calibration Standard, 100 mL\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 16px;\"\u003eReplenish the zero-point standard in your turbidity-testing routine with Apera T500-2. This 100 mL AMCO 0 NTU refill is identified as TN500-S2 in the workbook and by manufacturer part number AI4206.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cfigure style=\"flex:1 1 270px;min-width:0;margin:0;background:#fff;border-radius:10px;padding:18px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ai4206-square-optimized-20261019.webp?v=1792431276\" alt=\"T500-2 \/ TN500-S2 manufacturer product reference\" loading=\"eager\" style=\"display:block;width:100%;height:auto;max-height:360px;object-fit:contain;\"\u003e\u003cfigcaption style=\"font-size:.82rem;line-height:1.5;margin-top:12px;\"\u003e\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdetails class=\"bts-selection-guide\" style=\"border:1px solid #FF931A;border-radius:10px;margin:24px 0;\"\u003e\u003csummary style=\"cursor:pointer;padding:20px;background:#FF931A;border-radius:9px;font-weight:700;color:#172B4D;font-size:1.15rem;\"\u003eChoose your measurement and sample setup\u003cspan style=\"display:block;font-size:.88rem;font-weight:400;margin-top:5px;\"\u003eClick or tap for related products and selection guidance\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:22px;\"\u003e\n\u003cp style=\"margin:0 0 16px;\"\u003eUse a clean, suitable vial and follow the turbidity meter’s calibration procedure. Store at room temperature and do not freeze. A 0 NTU refill does not replace every standard required for a multi-point calibration.\u003c\/p\u003e\n\u003cul style=\"padding-left:24px;\"\u003e\u003cli style=\"margin:12px 0;\"\u003e\u003ca href=\"https:\/\/bluetigerscientific.com\/products\/apera-instruments-tn500-portable-white-light-turbidity-meter-with-glp-data-logger-epa-180-1-compliant\" style=\"color:#245B45;font-weight:600;text-decoration:underline;\"\u003eTN500 turbidity meter — review its calibration procedure\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp style=\"margin:0 0 16px;\"\u003eRelated products are separate purchases. Check the measurement method and the exact meter\/electrode connection before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003csection style=\"padding:30px 0;\"\u003e\u003ch2 style=\"color:#245B45;font-weight:600;font-size:clamp(23px,3vw,30px);line-height:1.3;margin:0 0 20px;\"\u003eWhy choose T500-2 \/ TN500-S2?\u003c\/h2\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:16px;\"\u003e\n\u003cdiv style=\"flex:1 1 220px;min-width:0;border:1px solid #DCE6DF;border-radius:10px;padding:22px;\"\u003e\n\u003ch3 style=\"color:#245B45;font-size:1.12rem;margin:0 0 10px;\"\u003eZero-point reference\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 16px;\"\u003eNominal 0 NTU AMCO standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;min-width:0;border:1px solid #DCE6DF;border-radius:10px;padding:22px;\"\u003e\n\u003ch3 style=\"color:#245B45;font-size:1.12rem;margin:0 0 10px;\"\u003e100 mL refill\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 16px;\"\u003eReplenish the standard used in your method.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;min-width:0;border:1px solid #DCE6DF;border-radius:10px;padding:22px;\"\u003e\n\u003ch3 style=\"color:#245B45;font-size:1.12rem;margin:0 0 10px;\"\u003eReady to use\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 16px;\"\u003eFollow the meter instructions and protect against contamination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"padding:30px 0;\"\u003e\u003ch2 style=\"color:#245B45;font-weight:600;font-size:clamp(23px,3vw,30px);line-height:1.3;margin:0 0 20px;\"\u003eWhat is included?\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 16px;\"\u003eOne 100 mL bottle of AMCO 0 NTU turbidity calibration standard. Meter, sample vials and other calibration levels are separate.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"padding:30px 0;\"\u003e\u003ch2 style=\"color:#245B45;font-weight:600;font-size:clamp(23px,3vw,30px);line-height:1.3;margin:0 0 20px;\"\u003eUse and sample considerations\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 16px;\"\u003eUse a clean, suitable vial and follow the turbidity meter’s calibration procedure. Store at room temperature and do not freeze. A 0 NTU refill does not replace every standard required for a multi-point calibration.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"padding:30px 0;\"\u003e\u003ch2 style=\"color:#245B45;font-weight:600;font-size:clamp(23px,3vw,30px);line-height:1.3;margin:0 0 20px;\"\u003eT500-2 \/ TN500-S2 buyer questions\u003c\/h2\u003e\n\u003cdetails class=\"bts-product-faq\" style=\"border:1px solid #B7D0BF;border-radius:8px;margin:0 0 10px;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.4;\"\u003eWhat is T500-2 used for?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 4px;\"\u003e\u003cp style=\"margin:0 0 16px;\"\u003eIt is a nominal 0 NTU AMCO turbidity calibration standard for the zero-point step of a compatible meter’s procedure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-product-faq\" style=\"border:1px solid #B7D0BF;border-radius:8px;margin:0 0 10px;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.4;\"\u003eIs this TN500-S2?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 4px;\"\u003e\u003cp style=\"margin:0 0 16px;\"\u003eThe workbook names AI4206 TN500-S2; Apera’s current product page calls the same manufacturer part number T500-2.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-product-faq\" style=\"border:1px solid #B7D0BF;border-radius:8px;margin:0 0 10px;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.4;\"\u003eHow much solution is supplied?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 4px;\"\u003e\u003cp style=\"margin:0 0 16px;\"\u003eOne 100 mL bottle.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-product-faq\" style=\"border:1px solid #B7D0BF;border-radius:8px;margin:0 0 10px;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.4;\"\u003eIs it a complete calibration kit?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 4px;\"\u003e\u003cp style=\"margin:0 0 16px;\"\u003eNo. This is one 0 NTU refill; other calibration levels may be required by the meter’s procedure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-product-faq\" style=\"border:1px solid #B7D0BF;border-radius:8px;margin:0 0 10px;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.4;\"\u003eDoes it include vials or a meter?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 4px;\"\u003e\u003cp style=\"margin:0 0 16px;\"\u003eNo. The listing supplies the standard only.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-product-faq\" style=\"border:1px solid #B7D0BF;border-radius:8px;margin:0 0 10px;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.4;\"\u003eHow should I store it?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 4px;\"\u003e\u003cp style=\"margin:0 0 16px;\"\u003eApera instructs room-temperature storage and says not to freeze it.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-product-faq\" style=\"border:1px solid #B7D0BF;border-radius:8px;margin:0 0 10px;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.4;\"\u003eCan I replace it with ordinary water?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 4px;\"\u003e\u003cp style=\"margin:0 0 16px;\"\u003eUse the standard specified by your meter’s calibration procedure. Ordinary water can introduce contamination and does not automatically provide the same reference.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-product-faq\" style=\"border:1px solid #B7D0BF;border-radius:8px;margin:0 0 10px;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.4;\"\u003eHow do I avoid contaminating it?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 4px;\"\u003e\u003cp style=\"margin:0 0 16px;\"\u003eFollow the meter and standard handling instructions, use clean vials and avoid returning used solution to the bottle.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/section\u003e\u003csection style=\"padding:24px;background:#F1F7F3;border-radius:10px;\"\u003e\u003cp style=\"margin:0 0 16px;\"\u003eReview the specifications and select the quantity your laboratory needs. Add to cart or request a quote for your purchasing team.\u003c\/p\u003e\n\u003ca href=\"#\" style=\"color:#245B45;font-weight:600;\"\u003eBack to price and ordering ↑\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Apera Instruments","offers":[{"title":"Default Title","offer_id":53026210480426,"sku":"BTS-AI4206","price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ai4206-square-optimized-20261019_15c5c24e-d32e-434b-9739-b8e210d61595.webp?v=1792431283","url":"https:\/\/bluetigerscientific.com\/products\/apera-t500-2-tn500-s2-ai4206","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}