Waterdrop WD-K19-S/WD-K19-H RO Water Dispenser: SGS Tested and Certified Performance

SGS Tested and Certified

Testing performed under NSF/ANSI standards 42 & 53 & 58. This system has been tested according to NSF/ANSI 42 & 53 & 58 for the reduction of substances listed below. The concentration of the indicated substances in water entering the system was reduced to a concentration less than or equal to the permittable limit for the water leaving the filter as specified in NSF/ANSI 42 & 53 & 58.

NSF/ANSI Standard 42 – Aesthetic Effects

Substance	Influent Challenge Concentration	Percent Reduction	Product Water Concentration	U.S. EPA Level/NSF Maximum Permissible Product Water Concentration
Dissociate chlorine residue	1.92 ppm	>99.47%	<0.01 ppm	≥50%
Chloramine	3.00 ppm	>99.66%	<0.01 ppm	≥80%

NSF/ANSI Standard 53&58 – Health Effects

Substance	Influent Challenge Concentration	Percent Reduction	Product Water Concentration	U.S. EPA Level/NSF Maximum Permissible Product Water Concentration
Total dissolved solids (TDS)	1090 ppm	97.34%	29 ppm	≥75%
Nitrate (as N)	34.940 ppm	91.90%	2.83 ppm	10 ppm
Fluoride	9.6 ppm	97.92%	0.20 ppm	1.5 ppm
Arsenic (As)	0.27464 ppm	99.55%	0.00124 ppm	0.01 ppm
Chromium-VI	0.155 ppm	>97.41%	<0.004 ppm	0.1 ppm
Lead (Pb)	0.12822 ppm	>99.94%	<0.00007 ppm	0.005 ppm
Copper (Cu)	4.05513 ppm	>99.99%	<0.00009 ppm	1.3 ppm

Microbial reduction testing

Substance	Influent Challenge Concentration	Percent Reduction	Product Water Concentration	U.S. EPA Level/NSF Maximum Permissible Product Water Concentration
Total coliforms	3.2×10⁵	>99.99%	<1 CFU/100mL	99.99%

NSF/ANSI Standard 53 – Health Effects – Volatile organic chemicals (VOCs) included by surrogate testing

Substance	Influent Challenge Concentration (mg/L)	Percent Reduction	Product Water Concentration (mg/L)	U.S. EPA Level/NSF Maximum Permissible Product Water Concentration
chloroform	0.2698	99.93%	0.0002	95%

Antibiotic reduction testing

Substance	Influent Challenge Concentration (µg/L)	Percent Reduction	Product Water Concentration (µg/L)
Ampicillin	10.154	99.95%	0.005
Amoxicillin	9.657	99.87%	0.013
Tetracycline	11.405	99.95%	0.006
Oxytetracycline	10.762	99.91%	0.010
Chlorotetracycline	10.284	>99.95%	<0.005
Sulfadiazine	9.972	99.83%	0.017
Sulfamethazine	10.182	99.83%	0.017
Roxithromycin	9.772	97.43%	0.251
Norfloxacin	9.948	>99.94%	<0.005

	Waterdrop Brand Cooperation Manual: Leading Residential Water Treatment Solutions Explore the Waterdrop Brand Cooperation Manual, detailing their leading position in residential water treatment solutions, product offerings, and distributor support programs. Learn about their innovative technology, global presence, and commitment to quality.
	Waterdrop K19-H Countertop Reverse Osmosis Instant Hot Water Dispenser Instruction Manual Comprehensive instruction manual for the Waterdrop K19-H Countertop Reverse Osmosis Instant Hot Water Dispenser. Includes installation, operation, maintenance, troubleshooting, and warranty information.
	Waterdrop Product Certification Manual: Ensuring Safe & High-Quality Water Filtration Explore Waterdrop's commitment to safety and quality through rigorous product certification and testing. This manual details material, structural, electrical, and filtration safety standards, along with key international certifications for Waterdrop's range of water purifiers and filters.
	Waterdrop X Series RO Water Filtration System Performance Data Sheet Performance data for Waterdrop X Series Reverse Osmosis water filtration systems (WD-X8, WD-X8-WAN, WD-X10, WD-X10-WAN), detailing NSF/ANSI certifications and substance reduction results for TDS and Chlorine.
	SGS Test Report: Waterdrop Reverse Osmosis Water Filtration System Official SGS test report for the Waterdrop WD-G3P800 Reverse Osmosis Water Filtration System. Details performance, including removal rate of Total coliforms, tested by SGS-CSTC Standards Technical Services. Covers models WD-G3P800, WD-G3P600, WD-G3-W, and WD-G2-W.
	Waterdrop WD-CIH-US Countertop RO Water Dispenser: Instruction Manual & User Guide User manual for the Waterdrop WD-CIH-US countertop reverse osmosis water dispenser. Includes setup instructions, operating guide, maintenance tips, troubleshooting, and warranty details for optimal use and care.
	Waterdrop Countertop Reverse Osmosis Water Dispenser Instruction Manual Instruction manual for the Waterdrop Countertop Reverse Osmosis Water Dispenser, covering installation, operation, maintenance, troubleshooting, and warranty information.
	Waterdrop Countertop Reverse Osmosis Water Dispenser Instruction Manual Instruction manual for the Waterdrop Countertop Reverse Osmosis Water Dispenser (Model WD-C1S-US), covering installation, operation, maintenance, troubleshooting, and warranty information.