Product Name	DPD Free and Total Chlorine Test Kit
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Product Overview	The DPD Free and Total Chlorine Test Kit is a manual colorimetric water testing solution designed to measure free and total chlorine in low and medium concentration ranges. It combines prepared reagents, sample vials, a pipette, a demineralizer bottle and a Checker Disc into a compact field-testing system. The kit is suitable for livestock drinking water inspection, agricultural water treatment, commercial pig farms and farm engineering projects where routine chlorine monitoring is required. Its non-electronic design makes it convenient for testing at water treatment rooms, storage tanks, dosing points and drinking-line endpoints.
Key Features	• Measures both free chlorine and total chlorine using the DPD method. • Manual testing operation requires no battery or electrical connection. • Pre-measured reagents simplify routine water quality testing. • Checker Disc supports side-by-side visual color comparison. • Suitable for low and medium chlorine concentration ranges. • Compact kit format is convenient for farm technicians and engineering teams. • Reagents are identified by lot and expiration information for traceability. • Replacement reagent packages are available for continued project use.
Structural Components	The complete test kit is built around a Checker Disc color comparator and includes glass sample vials with caps, a plastic pipette, pre-measured free chlorine and total chlorine reagent packets, and a demineralizer bottle with filter cap. The compact component arrangement allows the kit to be transported between livestock houses, water treatment rooms, farm utility areas and agricultural engineering sites. The supply configuration can be adjusted according to project requirements, testing frequency and procurement requirements.
Working Principle / Structural Principle	The kit uses a DPD colorimetric reaction. When the appropriate DPD reagent is added to a chlorine-containing water sample, a pink color develops. The color intensity changes with chlorine concentration. The reacted sample is compared with calibrated color positions on the Checker Disc to determine the corresponding chlorine concentration. Separate reagent procedures are used for free chlorine and total chlorine testing. This manual measurement principle is suitable for routine field inspection where a portable, non-powered testing method is preferred.
Technical Specifications	Measurement Parameters: Free Chlorine and Total Chlorine Testing Method: DPD colorimetric method with Checker Disc Low Range: 0.00 to 0.70 mg/L (ppm) as chlorine Low Range Resolution: 0.02 mg/L Medium Range: 0.0 to 3.5 mg/L (ppm) as chlorine Medium Range Resolution: 0.1 mg/L Free Chlorine Tests: 100 Total Chlorine Tests: 100 Total Testing Capacity: 200 tests with the standard reagent configuration Sample Volume: According to the selected testing range and procedure Power Supply: No electrical power required Kit Dimensions: 235 × 175 × 115 mm, reference configuration Shipping Weight: Approximately 696 g, reference configuration Final specifications, reagent configuration and accessories are available upon request and can be supplied according to project requirements.
Applications	• Commercial pig farms and integrated livestock production bases • Poultry and animal breeding facilities • Livestock drinking water treatment systems • Farm water storage and distribution networks • Chlorine dosing and disinfection monitoring • Pig farm construction and facility commissioning • Agricultural engineering and livestock equipment projects • Farm maintenance and water quality inspection • Agricultural distributors, agents and engineering contractors
Customization Options	SHEWUYOU can provide project-oriented testing solutions for livestock groups, farm engineering companies, agricultural contractors, distributors and procurement teams. Available options include: • Test kit configuration according to project requirements • Free and total chlorine reagent packages • Replacement reagent supply for long-term projects • Accessory quantities according to testing frequency • Distributor packaging and labeling solutions • Solutions designed according to local climate and farm conditions
Installation & Maintenance	The test kit requires no fixed installation, wiring or electrical power. Operators collect a representative water sample from the selected sampling point and perform the applicable free or total chlorine test. Keep glass vials, pipettes and the Checker Disc clean and free from contamination. Follow the specified sample volume and reagent procedure for the selected measurement range. Perform visual color comparison under suitable lighting conditions. Store reagents according to their specified conditions and use them before the stated expiration date. Clean and dry reusable components after testing and protect the Checker Disc during transportation and storage.
Project Cases	The test kit is suitable for water quality control programs associated with commercial pig farm construction, livestock facility upgrades, agricultural complexes and centralized farm water treatment systems. During project commissioning, technicians can use the kit to check chlorine levels at different points of the water distribution network, including treatment outlets, storage tanks, building inlets and livestock drinking-line endpoints. For large livestock projects, reagent quantities and accessory packages can be supplied according to farm scale, testing frequency and project requirements.
Product FAQ	Q: What does the DPD Free and Total Chlorine Test Kit measure? A: It measures free chlorine and total chlorine in water using a DPD colorimetric method. Q: Does the test kit require electricity? A: No. The manual testing system uses chemical reagents and a Checker Disc, so no battery or electrical connection is required. Q: Is it suitable for commercial pig farms? A: Yes. It is suitable for routine chlorine monitoring in livestock drinking water and farm water treatment systems. Q: What is the difference between free and total chlorine? A: Free chlorine represents available chlorine, while total chlorine includes free chlorine together with combined chlorine. Q: Are replacement reagents available? A: Yes. Replacement reagent packages can be supplied for continued testing. Q: Can the kit configuration be customized? A: Yes. Reagent quantities, accessories and supply configurations are available according to project requirements.
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