I purchased DPD reagent with gray spots, is it normal?

Yes, due to color differences in DPD material, tablets may be white, light gray, or pale pink. If the tablet is dark or sticky, do not use it.

How often should the measurement be completed?

We suggest finishing the testing within 5 minutes after adding the reagent because DPD reagents react with oxidizing substances in the air, causing color deepening.

High Accurate Test Kit Watertesting Strips Industrial Detection for Quality Control

Name: High Accurate Test Kit Watertesting Strips Industrial Detection for Quality Control
Brand: Guangdong Huankai Biology Sci.&Tech. Co.,Ltd.
SKU: 2137688285

Guangdong, ChinaGuangdong Huankai Biology Sci.&Tech. Co.,Ltd.

US$21.42-54.14

10 box

Product profile

Customization

Available

Type

Water Test Kit

Usage

for Physiscal and Chemical Test in Water

Warranty

1 Years

After-Sales Service Provided

Customized Support

OEM

Transport Package

Carton

Specification

50 tests/box

Trademark

HKM

Origin

Guangdong, China

Key features

Rapid Testing Capability: Complete water sample analysis in just 5 minutes without specialized training.

High Accuracy Results: Determination results align with standard methods, suitable as an alternative.

Quantitative Packaging: Kit includes color comparison card, reagents, and bottle for 50 tests.

OEM Customization Support: Provides packaging and labeling OEM customization services.

Free Sample Availability: Free test reagent samples offered for product testing.

Professional Technical Support: Dedicated R&D team provides technical assistance for users.

Compact and Portable: Small, light design makes the kit easy to carry for on-site testing.

Established Manufacturer: Over 18 years of experience in physical and chemical rapid detection.

Company profile

Patents AwardedR&D CapabilitiesManagement Certification

Guangdong Huankai Biology Sci.&Tech. Co.,Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: Guangzhou Port, Shenzhen Port CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤8.62h

AI-Powered supplier vetting

SummaryThe supplier demonstrates strong R&D and customization capabilities, with notable contributions to the food and drug safety industry in China. It offers a range of design services and has a clear mechanism for handling quality assurance and customer complaints. While it lacks overseas warehouse and showroom capabilities, it can manage exports through agents and has valid contracts with subcontractors. Financial data from the last three years is available, indicating a stable financial background.

After-Sales capabilityThe supplier has clear procedures and records for handling customer complaints and corrective actions, suggesting robust after-sales service capabilities.

R&D capabilityThe supplier has strong R&D capabilities with recent product innovations and SDK availability, and is recognized for innovation in China's food and drug safety industry.

Customization capabilityThe supplier offers extensive customization options, including full, minor, and flexible customization from samples and designs.

Client casesThe supplier provides OEM services for well-known brands, indicating experience with prominent clients.

Product Q&A

Q:Who are we?

HuanKai is based in Guangdong, China, established in 1993, with 301-500 employees. We have four major product lines with over 2,000 products protected by independent intellectual property rights.

Q:How can you guarantee quality?

We always conduct a pre-production sample before mass production and perform a final inspection before shipment.

Q:What products can you buy from us?

We offer Microbial Detection Products, Peptone & Tryptone, Dehydrated Culture Media, Granular Media, Microbial Air Samplers, and more.

Q:Why should you buy from us instead of other suppliers?

We have strong R&D capacity, over 30 years of experience, are one of the largest physicochemical reagent manufacturers in China, and use stable high-quality raw materials from Europe with strict quality control.

Q:What services can you provide?

We accept payment in USD, EUR, CNY via T/T, MoneyGram, PayPal, Western Union, Cash, and Escrow.