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NSF (National Sanitation Foundation)

What is NSF?

The National Sanitation Foundation Testing Laboratory (NSF) is the agency responsible for product testing and certification services for sanitation standards, and was formed in 1990 through the merger of the NSF, founded in 1944 by Walter Snyder, Henry Vaughn, and Nathan Sinai at the University of Michigan's Public Insurance Institute, and the NSFTL (The National Sanitation Foundation Testing Laboratory), established in 1952, merged to form NSFTL in 1990.

Major operations and features of NSF

As an independent, non-profit agency, NSF focuses primarily on the following areas

  • Development of standards in the water, food, air, and environmental sectors
  • Product Inspection and Certification
  • Providing technical education
  • Safety considerations and establishment of high quality standards
  • Conformity assessment of applicable products
  • Quality System Registration

Expertise and International Recognition

  • Running an expert committee of more than 300 professionals (scientists, engineers, professors, etc.)
  • Covers areas such as toxicology, microbiology, chemistry, physics, and mechanical engineering
  • Approved by the U.S. Environmental Protection Agency (EPA) and World Health Organization (WHO)
  • Joint research with EPA on drinking water additives
  • Accredited by WHO as a joint research institute for drinking water safety and treatment standards

Features of the certification system

Why the NSF has received worldwide accreditation:

  1. Rigorous verification by a committee of experts
  2. Setting precise and strict standards
  3. Establish a streamlined certification system and procedures

standards development process

  1. Confirmation of product need and scope of study
  2. Development of draft standards by the Technical Committee
  3. Public Health Association Review
  4. Designation as a standard by the American National Standards Institute (ANSI) *If rejected by the Public Health Advisory Committee, the Technical Committee will reconsider.

Key Certification Areas

1. wastewater treatment equipment

  • ANSI/NSF standard 40: Residential wastewater treatment equipment system standard
  • Standards for processes, components, and equipment required for wastewater treatment and control

2. drinking water treatment equipment

He has worked in the drinking water treatment equipment industry since 1968, developing standards in compliance with EPA standards, and since 1996 has conducted drinking water safety studies in collaboration with the WHO.

Standards:

  • ANSI/NSF 42: Aesthetic effects (taste, odor, chlorine, particulate matter, etc.)
  • ANSI/NSF 53: Health effects (lead, mercury, etc.)

3. drinking water additives

NSF's Drinking Water Additives Program is a certification program covering

  • Potable water treatment chemicals
  • Potable water system components
  • Control of contaminants that may have adverse health effects

Key Standards:

  • ANSI/NSF 60: Potable Water Treatment Chemicals
  • ANSI/NSF 61: Potable water system components

4. product testing

  1. Structural Testing
    • Evaluation of pressure resistance of water purifiers
    • Durability Testing
  2. Gushing Test Tests on all raw materials that make up the water purifier:
  • Aluminum, lead, mercury
  • TOC, VOC
  • ANSI/NSF 42: Taste, odor, chlorine, particulate matter
  • ANSI/NSF 53: Lead, mercury, etc.

Product Certification Program

1. poultry and processed meat products

Applicable standard: ANSI/NSF/3-A Standard 14159-1-2000 Subject:

  • General meat and poultry processing equipment
  • Processing and coating materials

Certification Procedure:

  1. Conduct preliminary evaluation at the manufacturing site
  2. Evaluation based on ANSI/NSF/3-A Standard 14159-1-2000
    • Material Evaluation
    • design evaluation
    • Structural assessment
  3. Confirm hazard assessment (design, operation, cleanliness aspects)
  4. Review cleaning maintenance and installation procedures manuals

2. cooking equipment

The certification process:

  1. Application for Certification (Application)
  2. Plant Audit
  3. Evaluation of representative samples (Physical Evaluation)
  4. Material Acceptance
  5. Documentation Report Registration and Certification

Evaluation Process:

  1. Physical Evaluations (material evaluation, testing, product design and structural evaluation)
  2. Design and Construction (product standards evaluation)
    • Minimum radius sizes
    • Closed/sealed joints and seams
    • Verification of hygiene-related requirements for products
  3. Material Requirements (safety assessment of food contact surfaces)
  4. Performance Testing (checking for conformance to standard requirements)
  5. Documentation Report (storage and management of all documents)

3. standards related to kitchen cookware

Detailed standards list:

  • ANSI/NSF Standards 2: Food Service Equipment
  • ANSI/NSF Standards 3: Commercial Spray-Type Dishwashing and Glasswashing Machines
  • ANSI/NSF Standards 4: Commercial Cooking and Heat Recovery Equipment
  • ANSI/NSF Standards 5: Hot Water Generating and Heat Recovery Equipment
  • ANSI/NSF Standards 6: Dispensing Freezers
  • ANSI/NSF Standards 7: Food Service Refrigerators and Storage Freezers
  • ANSI/NSF Standards 8: Commercial Powered Food Preparation Equipment
  • ANSI/NSF Standard 12: Automatic Ice Making Equipment
  • ANSI/NSF Standards 13: Refuse Compactors and Compactor Systems
  • ANSI/NSF Standards 18: Manual Food and Beverage Dispensing Equipment
  • ANSI/NSF Standards 20: Commercial Bulk Milk Dispensing Equipment
  • ANSI/NSF Standard 21: Thermoplastic Refuse Containers
  • ANSI/NSF Standard 25: Vending Machines for Food and Beverages
  • ANSI/NSF Standards 26: Pot, Pan, and Utensil Washers
  • ANSI/NSF Standards 29: Detergent/Chemical Feeders for Commercial Spray-Type Dishwashing Machines
  • ANSI/NSF Standards 35: Laminated Plastics for Surfacing Food Service Equipment
  • ANSI/NSF Standards 36: Dinnerware
  • ANSI/NSF Standard 37: Air Curtains for Entrance Ways in Food Establishments
  • ANSI/NSF Standard 51: Plastic Materials and Components Used in Food Equipment
  • ANSI/NSF Standards 52: Supplemental Flooring
  • ANSI/NSF Standards 59: Food Carts
  • ANSI Criteria C-2: Special Equipment and/or Devices (Food Service Equipment)

4. water quality related certification standards (DWTU Program Standard Standards)

Key Standards:

  • ANSI/NSF 42: Drinking Water Treatment Unit-Aesth Effects
  • ANSI/NSF 44: Cation Exchange Water Softeners
  • ANSI/NSF 55: Ultraviolet Microbiological Water Treatment Systems
  • ANSI/NSF 58: Reverse Osmosis Drinking Water Treatment Systems
  • ANSI/NSF 62: Drinking Water Distillation Systems
  • ANSI/NSF 60: Drinking Water Treatment Components
  • ANSI/NSF 61: Drinking Water Components

NSF Home Water Treatment Devices

1. scope of application

  • Adsorption Filters (carbon, charcoal, KDF, ceramic)
  • Reverse Osmosis Systems
  • Water Softeners
  • Distillation Systems
  • Ultraviolet Disinfection Products

2. applicable standards

  • Adsorption (NSF/ANSI 42 & 53)
  • Softeners (NSF/ANSI 44)
  • Ultraviolet Treatment (NSF/ANSI 55)
  • Reverse Osmosis (NSF/ANSI 58)
  • Distillers (NSF/ANSI 62)
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