{"product_id":"hanna-hi93701-f-free-chlorine-liquid-reagents-300-tests","title":"Hanna HI93701-F Free Chlorine Liquid Reagents — 300 Tests","description":"\u003cdiv id=\"bts-hi93701-f-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;\"\u003eFree chlorine, ready for your liquid 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;\"\u003eKeep routine free-chlorine testing simple with Hanna HI93701-F ready-made liquid DPD reagents. This factory reagent set provides a nominal 300 free-chlorine tests, with bottle lot numbers and expiration dates for traceability. Choose it when you need free chlorine—not a total-chlorine refill—and your exact meter supports the liquid method.\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=\"Hanna HI93701-F liquid free chlorine reagent set A-F and B-F\" height=\"1200\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/free-chlorine-liquid-reagents-300-tests-hi93701-f__17974.1559321286.jpg?v=1793920544\" 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;\"\u003eManufacturer identification photo. Historical label dates are illustrative, not the expiry of the supplied lot; the image is not a current bottle-count or volume declaration.\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 liquid method before you refill\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;\"\u003eHI971044 software v1.02 and higher and HI97104 software v1.04 and higher have individually verified liquid-chlorine procedures in their current manuals. Select Chlorine (Liquid), not the powder method. The separate free-chlorine procedure uses a 10 mL sample and a manufacturer-recommended 1-minute reaction; follow the meter tutorial and your approved timer settings.\u003c\/p\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 manufacturer describes an expected free-chlorine range of 0.00–5.00 mg\/L (ppm). That range does not make this a universal photometer reagent: confirm the exact model, firmware and selected method. HI83300 also has a directly verified free-chlorine liquid procedure; use its own instructions. Hanna Germany’s broad regional advisory advises against these liquids on current HI97xxx\/HI833xx instruments, conflicting with the current exact-model US-linked manuals. Our claims follow the verified model, software and liquid method—not worldwide series compatibility; check the manual for your instrument and market.\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;\"\u003eBuy the free-only refill—or plan paired readings correctly\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;\"\u003eHI93701-F supplies the free-chlorine A-F\/B-F reagent system. It does not include HI93701C-T for total chlorine. If your workflow needs both free and total chlorine, the exact HI93701-T liquid set can already deliver sequential free then total readings on HI971044 v1.02+ or HI97104 v1.04+: read free chlorine after 1 minute, then add C-T to the same cuvette and allow 1 additional minute. You do not automatically need both retail sets. The manuals permit A-T\/A-F and B-T\/B-F interchange only within this named method; the retail kits are not aliases.\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;\"\u003eLiquid is a method choice, not a powder-pack replacement\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;\"\u003eHI93701-F is distinct from HI93701-01 and HI93701-03 powder reagents. Match the reagent form to the program on your meter rather than substituting drops for a powder packet. Do not assume support across every HI97-series meter or every chlorine Checker; use the exact-model manual.\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;\"\u003eWhat you receive—and what your bench still needs\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;\"\u003eOrder one factory HI93701-F reagent set, with nominal capacity for 300 free-chlorine tests and component identities HI93701A-F and HI93701B-F. A compatible photometer, suitable clean cuvettes, sample and normal testing accessories are separate. This is not a meter, CAL Check standard, or complete total-chlorine kit. Current source text does not establish a factory bottle count or individual bottle volumes, so neither is promised here.\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;\"\u003eMake the nominal capacity useful in practice\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 300-test rating is the manufacturer’s set capacity, also listed in MAN971044 11\/25; it is not derived from the photograph or a guessed bottle size. Repeats, handling loss and expiry can reduce usable tests. For the primary HI971044 liquid method, observe the manual’s sample-below-27 °C guidance and reaction times referenced at 25 °C; do not transfer its settings to another instrument without checking.\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;\"\u003eCare for the reagents between testing rounds\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-F and B-F in their original, clearly labelled, tightly sealed containers in a dry, ventilated place; avoid overheating and incompatible materials. Protect A-F from moisture and light. Both component SDS identify corrosive hazards: use the specified eye\/skin protection and handling and disposal controls. Review the linked US component SDS against the labels supplied with your lot. No shelf-life or stock-lot expiry is guaranteed by the photograph. Hanna US classifies this HI93701-F kit as Dangerous Goods for ground-only shipping; the shared policy’s generic expedited options do not establish eligibility for this kit. Confirm destination and service before ordering.\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 exactly is HI93701-F?\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;\"\u003eIt is Hanna’s liquid free-chlorine reagent set, nominally rated for 300 tests. Its reagent identities are HI93701A-F and HI93701B-F. The rating is for the set, not 300 tests per bottle.\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;\"\u003eWill this measure total chlorine too?\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;\"\u003eNot on its own: the F set does not contain total-chlorine component HI93701C-T. For paired free\/total readings, check whether the HI93701-T set and your exact instrument’s sequential liquid procedure meet your needs before buying additional kits.\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;\"\u003eDo paired free and total readings always need two kits or fresh separate samples?\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;\"\u003eNo. HI971044 v1.02+ and HI97104 v1.04+ document a sequential HI93701-T liquid method: a free reading after 1 minute, then C-T added to the same reacted cuvette for a total reading after 1 additional minute. Separate fresh-sample procedures are also provided. Follow the exact program; do not generalize this to powder methods or other meters.\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 it in place of HI93701-01 or HI93701-03 powder?\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;\"\u003eThey are different reagent formats, not interchangeable retail refills. Use HI93701-F only with a verified liquid procedure and the correct method selection. Do not use powder-packet dosing or shaking instructions for this set.\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 model and software should I check?\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 current manuals individually verify HI971044 v1.02+ and HI97104 v1.04+ liquid methods; HI83300 has its own verified liquid free-chlorine procedure. Read your model and firmware information, then follow that model’s manual. A similar model name or the HI97 prefix alone does not establish compatibility.\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 is included, and are bottle quantities or volumes guaranteed?\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;\"\u003eOne factory HI93701-F reagent set is offered, with the A-F\/B-F reagent identities and nominal 300-test capacity. A meter, cuvettes, sample, CAL Check standards and C-T are not included. Current source text does not specify factory bottle quantities or individual volumes; the illustration is not a packing list.\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 long is the liquid free-chlorine reaction?\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 primary HI971044 separate free-liquid procedure uses a 10 mL sample and a manufacturer-recommended 1-minute reaction. Tutorial mode follows recommended times; SOP-adjusted timers can differ. Timing, sample temperature and handling belong to the exact instrument procedure—use the linked PDF for full dosing and steps.\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 should I store it, and does the old photograph show the lot I will receive?\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;\"\u003eStore in original, sealed, labelled containers in a dry, ventilated place, away from heat and incompatible materials; protect A-F from light and moisture. Follow each component’s SDS. Historical dates in the manufacturer photograph are illustrative, not a statement that current sale stock is expired or a promise of the supplied lot’s expiry. Check the received labels.\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":53478065832234,"sku":"BTS-HI93701-F","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/free-chlorine-liquid-reagents-300-tests-hi93701-f__17974.1559321286.jpg?v=1793920544","url":"https:\/\/bluetigerscientific.com\/products\/hanna-hi93701-f-free-chlorine-liquid-reagents-300-tests","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}