{"product_id":"hanna-hi93754f-25-cod-lr-iso-reagent-vials","title":"Hanna HI93754F-25 COD LR ISO Reagent Vials, 25 Vials","description":"\u003cdiv id=\"bts-hi93754f-25-description\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;max-width:1400px;margin:0 auto;padding:20px 12px;color:#26332C;background:#fff;\"\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;gap:20px;padding-bottom:20px;margin-bottom:24px;border-bottom:1px solid #e0e0e0;\"\u003e\n\u003cdiv style=\"flex:1 1 360px;min-width:0;box-sizing:border-box;\"\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eRefill the low-range ISO COD method with the right chemistry.\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eKeep a validated ISO 15705:2002 low-range COD workflow supplied with HI93754F-25. Its 25 pre-dosed reagent vials cover 0–150 mg\/L as O2 when used with the documented photometer procedure and separate heated digestion. Choose it by method family as well as range: this ISO formulation contains mercury and is neither the mercury-free refill nor a universally approved EPA replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cfigure style=\"flex:0 1 310px;min-width:0;margin:0;text-align:center;box-sizing:border-box;\"\u003e\n\u003cimg alt=\"Official Hanna HI93754F-25 reagent reference packaging\" height=\"1200\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/HI93754F-25_front-1200x1200-42706e7c-5e16-451b-8601-2ef65f033f1c__08011.1791310174.jpg?v=1793742919\" style=\"width:100%;max-width:300px;height:auto;object-fit:contain;\" width=\"1200\"\u003e\n\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-size:0.9rem;margin-top:8px;\"\u003eOfficial Hanna HI93754F-25 packaging reference, illustrating the refill and pre-dosed vials. Printed lot\/expiry markings are illustrative, not the lot or expiration of supplied stock.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F1F7F3;border-left:3px solid #245B45;padding:20px;box-sizing:border-box;margin:0 0 24px;\"\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eMatch the refill to the complete method\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eUse HI93754F-0 reagent in the exact-model COD LR procedure: HI97106 selects COD LR; HI83314 and HI83399 select COD LR (16). The verified range is 0–150 mg\/L as O2. Follow the instrument’s specified vial adapter and insertion instructions for both zero and read. Official sources conflict on physical vial diameter, so this listing does not assert the diameter of supplied vials or universal adapter fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eChoose chemistry and range together\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eHI93754F-25 is the orderable pack; HI93754F-0 is the component code identified in the instrument method and US Safety Data Sheet. The ISO family attribution is 15705:2002. A low-range label alone does not make this equivalent to the mercury-free or EPA formulations.\u003c\/p\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eMatch the exact instrument procedure\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eUse HI93754F-0 reagent in the exact-model COD LR procedure: HI97106 selects COD LR; HI83314 and HI83399 select COD LR (16). The verified range is 0–150 mg\/L as O2. Follow the instrument’s specified vial adapter and insertion instructions for both zero and read. Official sources conflict on physical vial diameter, so this listing does not assert the diameter of supplied vials or universal adapter fit.\u003c\/p\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003ePrepare the blank as deliberately as the sample\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003ePrepare one vial with 2 mL sample and a separate same-lot blank vial with 2 mL deionized water. Follow the full manual’s mixing precautions, then digest at 150 °C for 120 minutes in a separate heater. Cool exactly as directed: allow the initial cooling interval, invert while still warm when instructed, then rack until room temperature without shaking or inverting during final cooling. Never place a hot vial in the photometer adapter. Zero on the blank before reading the sample.\u003c\/p\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eCount vials, not promised results\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eThe pack contains 25 actual pre-dosed vials. A reagent blank consumes one of those vials, leaving 24 sample vials when one blank is prepared for a batch. This explains the benchtop manuals’ 24-test ordering count versus the retail 25-test label. Same-lot blanks and samples are required; follow the manual’s blank-reuse rules and run a blank for each measurement set for improved accuracy. Additional blanks, QC checks, repeats or failed preparations consume more vials. There is no guarantee of 25 reportable results.\u003c\/p\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eCheck the matrix before interpreting COD\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eISO instructions require chloride below 2000 mg\/L. Dilute higher-chloride samples as directed, account for the dilution and keep the result within the method range. This condition belongs to the ISO formulation; it is not a permission to use mercury-free reagents in chloride-containing samples.\u003c\/p\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eHave the complete digestion station ready\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eProvide a compatible photometer and its specified adapter, a separate digestion reactor capable of 150 °C for 120 minutes, deionized water, accurate 2 mL pipetting\/measuring tools and separate clean tips, a cooling rack, and the prescribed safety equipment. The photometer does not heat the vials. A safety shield is strongly recommended by the instrument manuals and required by the ISO reagent instructions; those instructions specify class A glass pipettes.\u003c\/p\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eConfirm reporting acceptance before use\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eISO 15705:2002 identifies this formulation’s method family. It is different from the EPA reagent family and cannot be treated as an automatically interchangeable EPA substitute. A common instrument-manual EPA-adaptation heading does not establish universal EPA\/ISO approval. Confirm the laboratory’s SOP, matrix validation and local reporting acceptance before regulatory use.\u003c\/p\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eHandle and ship as hazardous chemistry\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eThis ISO formulation contains mercury(II) sulfate as well as sulfuric acid and chromium-containing chemistry. It is not mercury-free. Treat fresh reagent and reacted vials as hazardous chemical materials; use the current US component SDS, suitable PPE, ventilation and a compliant waste service. Do not put spent vials in ordinary trash or pour them down the drain. Hanna classifies this product as Dangerous Goods, with ground-only shipping. An SDS air-transport classification is not permission to ship by air. No dispatch date or freight quote is promised.\u003c\/p\u003e\n\u003ch4 style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;font-weight:400;line-height:1.35;margin:0 0 16px;color:#245B45;\"\u003eManage received stock by its own markings\u003c\/h4\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;font-size:1rem;line-height:1.65;box-sizing:border-box;margin:0 0 16px;\"\u003eKeep unused vials in their original packaging in a cool, dark place, subject to the current SDS storage precautions. Check the lot and expiry on received stock; a reference photo does not establish your lot, expiry or available shelf life. No numeric storage temperature or shipping weight is asserted here.\u003c\/p\u003e\n\u003cdiv class=\"faq_block\" style=\"border-top:1px solid #e0e0e0;margin-top:24px;\"\u003e\u003cdiv itemscope=\"\" itemtype=\"https:\/\/schema.org\/FAQPage\" style=\"width: 100%; padding: 20px 0; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333;line-height:1.15;\"\u003e\n\u003ch3 style=\"font-size:1.1rem;font-weight:400;margin:0 0 16px;color:#245B45;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 400; list-style-position: inside;\"\u003eWhat does one order quantity contain?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eThe pack contains 25 actual pre-dosed vials. A reagent blank consumes one of those vials, leaving 24 sample vials when one blank is prepared for a batch. This explains the benchtop manuals’ 24-test ordering count versus the retail 25-test label. Same-lot blanks and samples are required; follow the manual’s blank-reuse rules and run a blank for each measurement set for improved accuracy. Additional blanks, QC checks, repeats or failed preparations consume more vials. There is no guarantee of 25 reportable results.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 400; list-style-position: inside;\"\u003eWhich photometers and method selections are documented?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eUse HI93754F-0 reagent in the exact-model COD LR procedure: HI97106 selects COD LR; HI83314 and HI83399 select COD LR (16). The verified range is 0–150 mg\/L as O2. Follow the instrument’s specified vial adapter and insertion instructions for both zero and read. Official sources conflict on physical vial diameter, so this listing does not assert the diameter of supplied vials or universal adapter fit.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 400; list-style-position: inside;\"\u003eHow much sample and blank water do I need?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003ePrepare one vial with 2 mL sample and a separate same-lot blank vial with 2 mL deionized water. Follow the full manual’s mixing precautions, then digest at 150 °C for 120 minutes in a separate heater. Cool exactly as directed: allow the initial cooling interval, invert while still warm when instructed, then rack until room temperature without shaking or inverting during final cooling. Never place a hot vial in the photometer adapter. Zero on the blank before reading the sample.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 400; list-style-position: inside;\"\u003eIs a digestion heater or pipette included?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eProvide a compatible photometer and its specified adapter, a separate digestion reactor capable of 150 °C for 120 minutes, deionized water, accurate 2 mL pipetting\/measuring tools and separate clean tips, a cooling rack, and the prescribed safety equipment. The photometer does not heat the vials. A safety shield is strongly recommended by the instrument manuals and required by the ISO reagent instructions; those instructions specify class A glass pipettes.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 400; list-style-position: inside;\"\u003eWhat chloride limitation applies?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eISO instructions require chloride below 2000 mg\/L. Dilute higher-chloride samples as directed, account for the dilution and keep the result within the method range. This condition belongs to the ISO formulation; it is not a permission to use mercury-free reagents in chloride-containing samples.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 400; list-style-position: inside;\"\u003eCan I use this for regulated reporting?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eISO 15705:2002 identifies this formulation’s method family. It is different from the EPA reagent family and cannot be treated as an automatically interchangeable EPA substitute. A common instrument-manual EPA-adaptation heading does not establish universal EPA\/ISO approval. Confirm the laboratory’s SOP, matrix validation and local reporting acceptance before regulatory use.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 400; list-style-position: inside;\"\u003eIs this reagent nonhazardous or mercury-free?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eThis ISO formulation contains mercury(II) sulfate as well as sulfuric acid and chromium-containing chemistry. It is not mercury-free. Treat fresh reagent and reacted vials as hazardous chemical materials; use the current US component SDS, suitable PPE, ventilation and a compliant waste service. Do not put spent vials in ordinary trash or pour them down the drain.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 400; list-style-position: inside;\"\u003eWhat shipping and storage precautions apply?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eDangerous Goods: ground-only shipping. No air-shipping permission or delivery date is promised. Store unused vials in their original packaging in a cool, dark place and follow the current SDS. Inspect actual lot\/expiry markings on receipt; printed dates in photographs are illustrative only.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":53443701473578,"sku":"BTS-HI93754F-25","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/HI93754F-25_front-1200x1200-42706e7c-5e16-451b-8601-2ef65f033f1c__08011.1791310174.jpg?v=1793742919","url":"https:\/\/bluetigerscientific.com\/products\/hanna-hi93754f-25-cod-lr-iso-reagent-vials","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}