Matched chemistry for HI97716 bromine testing
Keep routine bromine checks moving with the reagent made for your photometer’s DPD method. A pre-measured powder packet simplifies dosing, while a choice of 100 or 300 tests lets you replenish for a short sampling run or a busier monitoring schedule.
In the DPD reaction, bromine develops a pink tint that the matching photometer measures. This is sample-testing chemistry for a bromine result—not a free-chlorine measurement and not a calibration standard.
Manufacturer reference packaging; printed lot numbers and expiration dates are illustrative, not the dates of supplied stock.
Check the method fit before ordering
HI97716: 0.00–10.00 mg/L as Br₂. For water samples expected within the HI97716 bromine range. In mixed-oxidant samples, a colored response is not automatically selective for bromine: review the interference list before treating the result as a process-control value.
A measured dose, a timed color development
Fill a cuvette to the 10 mL mark with unreacted sample, fit the stopper and cap, and zero the HI97716. Add one packet of HI93716-0. Close and shake gently for about 20 seconds to dissolve most of the reagent. Return the cuvette to the holder in the specified orientation and use the 2 minute 30 second countdown before the reading. The result is displayed as bromine (Br₂).
Keep cuvettes clean and dry on the outside, free of fingerprints and bubbles. Fit stoppers and caps securely and follow the manual’s cuvette orientation and handling guidance. This overview does not replace the complete instrument method.
Sample limits that matter
The HI97716 manual identifies chlorine, iodine, ozone and oxidized chromium and manganese as interferences. Hardness above 500 mg/L as CaCO₃, alkalinity above 300 mg/L as CaCO₃ or acidity above 150 mg/L as CaCO₃ also require the manual’s specific treatment. Follow those directions rather than assuming all treated or natural waters behave alike.
What the reagent pack includes
The selected pack supplies pre-measured HI93716-0 powder reagent for 100 or 300 bromine tests. The photometer, glass cuvette, stopper, cap and CAL Check standards are separate. Use the cuvette and handling accessories specified by the instrument manual.
Choose 100 or 300 tests
HI93716-01 provides 100 tests; HI93716-03 provides 300 tests. Both use the same method chemistry and measurement range. Select the smaller pack for lower-volume testing or the larger pack for more frequent sampling, considering your likely use before the marked expiry. Test counts describe analytical capacity, not a promise of a particular shipping-box bottle or packet arrangement.
Documented instrument support
Exact-model manuals in the reagent map list both pack sizes for HI97716, HI83300, HI83305, HI83326, HI83399, HI93102. Follow the procedure and reporting basis for your own instrument. The range and workflow above refer specifically to HI97716.
These are HI93716 photometer reagents, not HI716-25 Checker reagents or HI3830-060 chemical test-kit refills. A shared parameter name does not make those reagent systems interchangeable.
Handle the chemistry, not just the result
Review the linked US Safety Data Sheets for HI93716-0 before use. Follow the SDS and laboratory procedures for personal protection, storage and waste disposal. Check the supplied reagent labels before every run.
Frequently Asked Questions
Which pack should I select?
HI93716-01 supplies 100 tests and HI93716-03 supplies 300 tests. Both are the same reagent family; the larger test count does not extend the range. Match expected use to the marked shelf life.
What does the HI97716 result mean?
The range is 0.00–10.00 mg/L as Br₂. The displayed analyte is bromine, Br₂. DPD color alone does not distinguish bromine from every other oxidant; check the method’s interference list.
Which reagent components are used?
Use one packet of HI93716-0 for the 10 mL sample. Zero the meter before adding the packet, then shake gently for about 20 seconds and use the 2 minute 30 second countdown.
What can interfere with the bromine result?
The HI97716 manual identifies chlorine, iodine, ozone and oxidized chromium and manganese as interferences. Hardness above 500 mg/L as CaCO₃, alkalinity above 300 mg/L as CaCO₃ or acidity above 150 mg/L as CaCO₃ also require the manual’s specific treatment. Follow those directions rather than assuming all treated or natural waters behave alike.
Does the pack contain a meter or calibration standards?
No. The pack is reagent-only replenishment. The meter, cuvette, cap, stopper and CAL Check standards are separate; sample reagents cannot replace the standards used for instrument verification.
Which instruments have documented support?
Both pack sizes are documented for HI97716, HI83300, HI83305, HI83326, HI83399, HI93102. Follow your exact model’s method; this page’s detailed workflow and range are for HI97716.
How should I prepare and handle the cuvette?
Use a clean cuvette filled to 10 mL, with the specified stopper and cap. Wipe off water, fingerprints and dirt before inserting it, remove bubbles, and observe the cap-notch orientation. Keep the reaction timing consistent with the instrument manual.
What handling and storage information should I follow?
Use the current linked US SDS for HI93716-0 and the supplied labels for storage, protective equipment and disposal. Each packet has lot and expiration traceability.
