Description
Product Overview
The HF Scientific 10504C DPD Reagent Dispenser is engineered to meet the rigorous demands of modern water quality laboratories that require accurate, repeatable free‑chlorine measurements. Each dispenser contains a precisely measured 10 ml of high‑purity DPD reagent, calibrated to support up to 1,000 individual tests, which dramatically reduces the need for frequent refilling and minimizes the risk of measurement error caused by inconsistent reagent volumes. The dispenser’s housing is constructed from chemically resistant polymer that safeguards the reagent from moisture and contamination, while the internal dosing mechanism has been redesigned to prevent clogging—a common issue with traditional liquid dispensers. The compact form factor, measuring just 11.5 × 8.27 × 2.48 inches and weighing only 9.17 ounces, allows it to fit comfortably on any bench or workstation without sacrificing stability. The push‑button operation delivers a single, repeatable dose with each press, ensuring that every test receives the exact amount of reagent required for reliable colorimetric analysis. This level of precision is essential for laboratories that perform high‑throughput testing or that must adhere to strict regulatory standards for water safety.
Usage
Designed for versatility, the 10504C dispenser works seamlessly with both round and square cuvettes, making it compatible with a wide range of spectrophotometers and colorimeters commonly used in environmental monitoring, municipal water treatment, and industrial process control. Users simply place the dispenser over the cuvette, press the ergonomic button, and the device releases a consistent 10 µL dose of DPD reagent directly into the sample. This straightforward workflow eliminates the need for separate pipettes or graduated cylinders, reducing the potential for human error and speeding up the overall testing process. The dispenser is ideal for routine monitoring of free chlorine in drinking water, swimming pools, wastewater effluents, and cooling tower blow‑down, as well as for specialized applications such as chlorine residual verification in disinfection studies. Its clog‑free design ensures that even after extended periods of storage, the reagent remains free flowing, allowing technicians to maintain productivity without interruption. The dispenser’s lightweight construction also makes it easy to transport between field sites and laboratory environments, supporting on‑site testing scenarios where rapid, accurate results are critical.
Why Choose Us
HF Scientific has a long‑standing reputation for delivering high‑quality laboratory instrumentation and accessories that combine durability with user‑centric design. The 10504C DPD Reagent Dispenser exemplifies this commitment by incorporating a series of thoughtful features that address common pain points experienced by laboratory personnel. First, the dispenser’s anti‑clog technology reduces downtime caused by reagent blockage, a problem that can compromise test schedules and increase operational costs. Second, the precise push‑button dosing mechanism guarantees that each test receives an identical volume of reagent, which is essential for achieving reproducible results across large sample sets. Third, the product undergoes rigorous quality control testing to ensure that every unit meets exacting performance standards before it reaches the customer. In addition, HF Scientific provides responsive technical support and a clear warranty policy, giving users confidence that any issues will be addressed promptly. By choosing this dispenser, laboratories benefit from a reliable, cost‑effective solution that enhances analytical accuracy while simplifying daily workflows.
Key Features
- Provides 10 ml of DPD reagent for up to 1,000 free‑chlorine tests, reducing refill frequency.
- Redesigned anti‑clog mechanism ensures smooth dispensing even after long storage periods.
- Push‑button operation delivers a single, precise dose for consistent, repeatable results.
- Compatible with both round and square cuvettes, fitting a wide range of spectrophotometric instruments.
- Backed by HF Scientific’s dedicated customer support and comprehensive warranty for peace of mind.
FAQ
How many tests can I perform with one dispenser?
Each 10504C dispenser contains enough DPD reagent for up to 1,000 individual free‑chlorine tests when used with the recommended 10 µL dose per test.
Is the dispenser compatible with all spectrophotometers?
The dispenser is designed to work with most laboratory spectrophotometers and colorimeters that accept standard round or square cuvettes, making it a versatile addition to any testing setup.
Can I use the dispenser for other chlorine‑related analyses?
While the dispenser is optimized for free‑chlorine (DPD) testing, it can also be used for total chlorine measurements when paired with the appropriate reagents and calibration protocols.
What should I do if the dispenser becomes clogged?
The anti‑clog design minimizes this risk, but if blockage occurs, gently tap the dispenser to dislodge any trapped reagent and ensure the push‑button mechanism is clean before resuming use.
Does HF Scientific offer training for using this dispenser?
Yes, HF Scientific provides instructional materials, including quick‑start guides and video tutorials, to help users get up to speed quickly and maximize the dispenser’s performance.






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