{"product_id":"hanna-hi93711-total-chlorine-reagents","title":"Hanna HI93711 Total Chlorine Reagents, 100 or 300 Tests","description":"\u003cdiv id=\"bts-hi93711-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;\"\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;gap:24px;border-bottom:1px solid #e0e0e0;padding-bottom:24px;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1 1 500px;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;\"\u003eKeep your HI97711 ready for the next 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;\"\u003eChoose HI93711-01 for 100 tests or HI93711-03 for 300 tests. These genuine Hanna pre-measured powder reagents replenish total chlorine water-sample testing with the HI97711 portable photometer. The instrument, cuvettes, caps and CAL Check standards are sold separately.\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;\"\u003eEach packet is prepared with high-purity chemicals and marked with a lot number and expiration date for traceability. Select the test count that fits your sample workload; the pack size does not change the measurement range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cfigure style=\"flex:1 1 350px;min-width:min(250px,100%);margin:0;text-align:center;box-sizing:border-box;\"\u003e\n\u003cimg alt=\"Hanna HI93711-01 Total Chlorine Reagents (100 tests), official manufacturer image\" height=\"1200\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/total-chlorine-reagents-100-hi93711-01__96761.1574696745.jpg?v=1793379070\" style=\"width:100%;max-width:360px;height:auto;object-fit:contain;border-radius:8px;\" 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 reference image. Packet appearance and printed dates are illustrative, not the expiration date of supplied stock.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;gap:24px;border-bottom:1px solid #e0e0e0;padding-bottom:24px;margin-bottom:24px;\"\u003e\n\u003cfigure style=\"flex:1 1 350px;min-width:min(250px,100%);margin:0;text-align:center;box-sizing:border-box;\"\u003e\n\u003cimg alt=\"Hanna HI93711-03 Total Chlorine Reagents (300 tests), official manufacturer image\" height=\"1200\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/total-chlorine-reagents-300-hi93711-03__62804.1574696689.jpg?v=1793379070\" style=\"width:100%;max-width:360px;height:auto;object-fit:contain;border-radius:8px;\" 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 reference image. Packet appearance and printed dates are illustrative, not the expiration date of supplied stock.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003cdiv style=\"flex:1 1 500px;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;\"\u003eMatched chemistry for a defined photometer 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;\"\u003eThe DPD reaction develops a pink tint proportional to total chlorine concentration.\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 HI97711 method measures 0.00 to 5.00 mg\/L as Cl₂. These are powder reagents for the Total Chlorine (Powder) method, not the liquid A, B and C reagents in the separate HI93701-T set. Use a fresh, unreacted sample for each total or free chlorine determination.\u003c\/p\u003e\n\u003c\/div\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;\"\u003eA straightforward HI97711 sample workflow\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;\"\u003eZero the HI97711 with 10 mL of unreacted sample in a clean cuvette. Add one packet of HI93711-0 reagent. Shake gently for 20 seconds, then follow the meter's 2 minutes 30 seconds reaction countdown before reading. The instrument method manual supplies the complete procedure, interference information and temperature guidance.\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;\"\u003eKeep the cuvette exterior clean and dry and avoid bubbles. Review the Safety Data Sheet before use and follow appropriate handling and disposal procedures. The photographs show manufacturer reference packaging; printed lot numbers and dates are illustrative, not a promise of the supplied stock expiration date.\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;\"\u003eWhat is included and what to have 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;\"\u003eEach selected pack supplies reagent for the stated 100 or 300 tests. Have a HI97711 photometer, suitable clean glass cuvettes with stoppers and caps, a water sample and the accessories required by the method ready separately. CAL Check standards verify the instrument; they do not replace reagents used to react with actual 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;\"\u003eChoose your pack\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;\"\u003eHI93711-01 provides 100 tests for lower-volume replenishment. HI93711-03 provides 300 tests for a larger sample workload using the same chemistry. Consider expected usage and the expiration date on the supplied packets before selecting a pack.\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: 600; margin: 0 0 16px 0;\"\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: 600; list-style-position: inside;\"\u003eAre both packs compatible with HI97711?\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;\"\u003eYes. The HI97711 method manual explicitly lists HI93711-01 for 100 tests and HI93711-03 for 300 tests. Use the matching method and do not assume compatibility with every Hanna meter.\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: 600; list-style-position: inside;\"\u003eWhat is the difference between HI93711-01 and HI93711-03?\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 test count. HI93711-01 supplies enough reagent for 100 tests and HI93711-03 supplies enough for 300 tests. Both use the same HI93711-0 powder chemistry.\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: 600; list-style-position: inside;\"\u003eWhat measurement range does this method cover?\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;\"\u003eOn the HI97711, the range is 0.00 to 5.00 mg\/L as Cl₂. Use the complete procedure and range for your exact instrument; a larger reagent pack does not extend the range.\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: 600; list-style-position: inside;\"\u003eHow much sample and reagent is needed?\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 HI97711 method uses 10 mL of sample and one packet of HI93711-0 per determination. Zero the instrument with the unreacted sample before adding reagent.\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: 600; list-style-position: inside;\"\u003eHow do I mix and time the 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;\"\u003eShake gently for 20 seconds. Then use the 2 minutes 30 seconds countdown specified by the HI97711 method. Follow the manual for the full measurement sequence and temperature guidance.\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: 600; list-style-position: inside;\"\u003eAre these the same as CAL Check standards?\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. These sample reagents react with water samples to measure total chlorine. CAL Check standards are separate products for checking instrument performance, not substitutes for sample reagents.\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: 600; list-style-position: inside;\"\u003eDoes the pack include the meter and cuvettes?\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. These are reagent-only replenishment options. The HI97711 photometer, cuvettes, caps, cleaning accessories and CAL Check standards are separately required or optional according to the method.\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: 600; list-style-position: inside;\"\u003eWhat should I check before handling or ordering?\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;\"\u003eCheck the packet lot number and expiration date, review the linked HI93711-0 Safety Data Sheet and follow the method manual. These are powder reagents for the Total Chlorine (Powder) method, not the liquid A, B and C reagents in the separate HI93701-T set. Use a fresh, unreacted sample for each total or free chlorine determination.\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":"100 tests | HI93711-01","offer_id":53394417156394,"sku":"BTS-HI93711-01","price":40.69,"currency_code":"USD","in_stock":true},{"title":"300 tests | HI93711-03","offer_id":53394417189162,"sku":"BTS-HI93711-03","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/total-chlorine-reagents-100-hi93711-01__96761.1574696745.jpg?v=1793379070","url":"https:\/\/bluetigerscientific.com\/products\/hanna-hi93711-total-chlorine-reagents","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}