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  • NEW APRIL 2018

    401-2017a Drinking Water Treatment Units - Emerging Compounds/Incidental Contaminants

    The point-of-use and point-of-entry systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in drinking water (public or private) considered to be microbiologically safe and of known quality. Systems covered under this Standard are intended to reduce substances that are at very low, yet measurable concentrations but not at definitive concentrations of known health concern. These substances may be soluble or particulate in nature but their presence, even at very low concentrations, may influence public acceptance/perception of the drinking water quality. The systems addressed by this Standard are not intended for reducing these specific substances at higher concentrations that may have a known acute or chronic health effect. It is recognized that a system may be effective in reducing one or more of the emerging compounds/incidental contaminants listed in this Standard. It is not necessary that a device be able to reduce all the emerging compounds/incidental contaminants listed in order to meet the requirements of this Standard. Systems with components or functions covered under other NSF or NSF/ANSI standards or criteria shall conform to the applicable requirements therein.

    416-2017 Sustainability Assessment for - Water Treatment Chemical Products (NSF/AWWA/ANSI 416)
    This Standard establishes a consistent approach to the evaluation and determination of environmentally preferable and sustainable chemical product manufacturing processes, water treatment chemical products, distributors, repackagers, and relabelers of chemical products. Many of these water treatment chemical products are used for public health protection. The document includes relevant criteria across the product(s) life cycle from raw material extraction through manufacturing, use, and end-of-life management. The intended use of this Standard is to show that the product, manufacturing processes, distribution, repackaging/relabeling, and corporate practices of a water treatment chemical product manufacturer are more sustainable.

    350-2017a Onsite residential and commercial water reuse treatment systems
    This Standard contains minimum requirements for onsite residential and commercial water treatment systems. Systems may include the following:

    —Greywater treatment systems having a rated treatment capacity up to 5,678 L/day (1,500 gal/day). This applies to onsite residential and commercial treatment systems that treat greywater, those that treat laundry water from residential laundry facilities, and those that treat bathing water. See 8.1 for performance testing and evaluation.

    —Residential wastewater treatment systems having a rated treatment capacity up to 5,678 L/day (1,500 gal/day). This applies to onsite residential treatment systems that treat combined wastewater generated by the occupants of residence(s). A reuse system treating 1,514 L/day (400 gal/day) to 5,678 L/day (1,500 gal/day) shall either be demonstrated to have met the Class I requirements of NSF/ANSI 40, or must meet these requirements during concurrent testing to this Standard. A treatment system treating less than 1,514 L/day (400 gal/day) is not required to have met the Class I requirements of NSF/ANSI 40. See 8.2 for performance testing and evaluation.

    —Commercial treatment systems ? this applies to onsite commercial treatment systems that treat combined commercial facility wastewater and commercial facility laundry water of any capacity, and those treatment systems that treat greywater from commercial facilities with capacities exceeding 5,678 L/day (1,500 gal/day). These systems shall be performance tested and evaluated at the location of the reuse system installation, using the wastewater generated onsite from the facility serving the treatment system. See 8.3 for performance testing and evaluation. The key elements of a field evaluation of a commercial treatment system are described in Annex A.

    Management methods and end uses appropriate for the treated effluent discharged from onsite residential and commercial treatment systems meeting Class R (single family residential) or Class C (multi-family and commercial facilities) requirements of this Standard include indoor restricted urban water use, such as toilet and urinal flushing, and outdoor unrestricted urban water use, such as surface irrigation. Effluent quality criteria consistent with these uses are described in 8.6, Criteria.

    This Standard is intended to address public health and environmental issues. Actual performance for any site or system may vary, depending on variations in raw water supply (such as alkalinity and hardness), wastewater constituents, and patterns of use. The end use of the effluent is the responsibility of the owner, design professionals, and regulatory officials.

    System components covered under other NSF or NSF/ANSI standards or criteria shall also comply with the requirements therein. This Standard shall in no way restrict new system designs, provided such designs meet the minimum specifications described herein.

    173-2017 Dietary Supplements
    This Standard provides test methods and evaluation criteria for dietary supplement products to allow for the determination that the ingredients in the product are accurately identified, that the product contains the quantity of dietary ingredients and marker constituents declared on the product label, and that the product does not contain unacceptable quantities of contaminants.

    This Standard provides criteria for determining that Good Manufacturing Practices were followed in the production of dietary supplements.

    53-2017 Drinking water treatment units - Health effects
    The point-of-use and point-of-entry systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in drinking water (public or private). These substances are considered established or potential health hazards. They may be microbiological, chemical, or particulate (including filterable cysts) in nature. It is recognized that a system may be effective in controlling one or more of these contaminants, but systems are not required to control all. Activated carbon filter systems covered by this Standard are not intended to be used with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.

    50-2017 Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
    This Standard covers materials, components, products, equipment and systems, related to public and residential recreational water facility operation.

    NEW JANUARY 2018

    44-2017 Residential Cation Exchange Water Softeners

    The purpose of this Standard is to establish minimum requirements for materials, design and construction, and performance of residential cation exchange water softeners. This Standard also specifies the minimum product literature that manufacturers shall supply to authorized reqpresentatives and owners, as well as the minimum service-related obligations that manufactuers shall extend to owners.

    The manual, autoinitiated, and demand-initiated regeneration residential cation exchange water softeners addressed by this Standard are designed to be used for the removal of hardness and the reduction of specific contaminants from drinking water supplies (public or private) considered to be microbiologically safe and of known quality. Systems with components or functions covered under other NSF or NSF/ANSI Standards or Criteria shall conform to the applicable requirements therein.

    358-2-2017 Polypropylene Pipe & fittings for water-based ground-source "geothermal" heat pump systems
    This Standard establishes the minimum physical and performance requirements for plastic piping system components. These criteria were established for the protection of property, public health and the environment.

    The physical and performance requirements in this standard apply to plastic piping system components as well as non-plastic components of the ground loop heat exchanger including but not limited to pipes and fittings used in water-based ground-source heat pump systems This Standard is intended for ground loop heat exchangers with a maximum temperature and pressure of 140 °F (60°C) at 100 psi. Waterbased ground-source heat pump systems commonly include the use of anti-freeze, heat transfer fluids or other chemical additives. This standard does not cover refrigerant based ground loop heat exchangers such as direct expansion (DX) systems. This standard does not cover hydronic heating or cooling systems within buildings.

    350-1-2017 Onsite residential and commercial graywater treatment systems for subsurface discharge
    This Standard contains minimum requirements for onsite residential and commercial greywater treatment systems. Systems may include:

    — Greywater reuse treatment systems having a rated treatment capacity up to 5,678 L/d (1,500 gal/d): This applies to onsite residential and commercial reuse treatment systems that treat combined greywater, those that treat laundry water only from residential laundry facilities, and those that treat bathing water only. See 8.1 for performance testing and evaluation.

    — Commercial greywater reuse treatment systems: This applies to onsite commercial reuse treatment systems that treat combined commercial facility greywater with capacities exceeding 5,678 L/d (1,500 gal/d) and commercial facility laundry water only of any capacity. These systems shall be performance tested and evaluated at the location of the reuse system installation, using the greywater generated onsite from the facility serving the treatment system. See 8.2 for performance testing and evaluation. The key elements of a field evaluation of a commercial onsite reuse treatment system are described in Annex A.

    The Standard is intended to address public health and environmental issues only. Actual performance for any site or system may vary, depending on variations in raw water supply (such as in alkalinity and hardness), greywater constituents, and patterns of use. The end use of the effluent is the responsibility of the owner, design professionals, and regulatory officials.

    Management methods and end uses appropriate for the treated effluent discharged from greywater residential and commercial treatment systems meeting this Standard are limited to subsurface discharge to the environment only. Effluent quality criteria consistent with these uses are described in 8.5 ? Criteria.

    System components covered under other NSF or NSF/ANSI standards or criteria shall also comply with the requirements therein. This Standard shall in no way restrict new system designs, provided such designs meet the minimum specifications described herein.

    42-2017 Drinking Water Treatment Units - Aesthetic Effects
    It is the purpose of this Standard to establish minimum requirements for materials, design and construction, and performance of drinking water treatment systems that are designed to reduce specific aesthetic-related (non-health effects) contaminants in public or private water supplies. This Standard also specifies the minimum product literature and labeling information that a manufacturer shall supply to authorized representatives and system owners as well as the minimum service-related obligations that the manufacturer shall extend to system owners.

    The point-of-use and point-of-entry systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in drinking water (public or private) considered to be microbiologically safe and of known quality. Systems covered under this Standard are intended to reduce substances affecting the aesthetic quality of the water or to add chemicals for scale control, or both. Substances may be soluble or particulate in nature at concentrations influencing public acceptance of the drinking water. It is recognized that a system may be effective in controlling one or more of these substances but is not required to control all. systems with components or functions covered under other NSF or NSF/ANSI standards or criteria shall conform to the applicable requirements therein.

    NSF 457-2017 Sustainability Leadership of Photovoltaic Modules
    The purpose of this Standard for Photovoltaic (PV) modules is to establish product sustainability performance criteria and corporate performance metrics that exemplify sustainability leadership in the market.

    The Standard provides a framework and standardized set of performance objectives for manufacturers and the supply chain in the design and manufacture of PV module components. For purchasers, this Standard provides a consensus-based definition of key sustainability attributes and performance metrics, alleviating individual purchasers from the arduous and complex task of defining sustainability performance for PV modules. This Standard can be used within an established system for the identification of sustainability/environmentally preferable products by purchasers and to provide market recognition for conforming products and brand manufacturers.

    This Standard was developed based on the principle that only sustainability leadership products, those in the top third of the market, are expected to qualify to the Standard at the Bronze level at the date of publication of the Standard. Only a few products are expected to meet the highest performance level (Gold) at the date of publication of the Standard.

    This Standard will be continually maintained and periodically reviewed to ensure that the definition of sustainability leadership, as reflected in the performance criteria, progresses with the evolution of technology and services and sustainability/environmental improvements in the product sector.

    NSF 55-2017 Ultraviolet Microbiological Water Treatment Systems
    The purpose of this Standard is to establish minimum requirements for the reduction of microorganisms using ultraviolet radiation (UV). UV water treatment systems covered by this Standard are intended for water that may be either microbiologically safe or microbiologically unsafe. This Standard also specifies the minimum product literature and labeling information that a manufacturer shall supply to authorized representatives and system owners, as well as the minimum service-related obligations that the manufacturer shall extend to system owners.

    NSF 170-2017 Glossary of food equipment terminology
    Definitions covered by this Standard consist of terminology related to food equipment, including terms describing equipment, materials, design, construction, and performance testing. This Standard includes common definitions of terms used throughout NSF Food Equipment and Sanitation Standards.

    NSF 61-2017 Drinking Water System Components - Health Effects
    This Standard is intended to cover specific materials or products that come into contact with: drinking water, drinking water treatment chemicals, or both. The focus of the Standard is evaluation of contaminants or impurities imparted indirectly to drinking water. The products and materials covered include, but are not limited to, process media (e.g., carbon, sand), protective materials (e.g., coatings, linings, liners), joining and sealing materials (e.g., solvent cements, welding materials, gaskets), pipes and related products (e.g., pipes, tanks, fittings), mechanical devices used in treatment/transmission/distribution systems (e.g., valves, chlorinators, separation membranes, point-ofentry drinking water treatment systems), and mechanical plumbing devices (e.g., faucets, endpoint control valves).

    NSF 62-2017 Drinking Water Distillation Systems
    It is the purpose of this Standard to establish minimum requirements for materials, design and construction, and performance of drinking water treatment systems that are designed to reduce specific aesthetic-related (non-health effects) contaminants in public or private water supplies. This Standard also specifies the minimum product literature and labeling information that a manufacturer shall supply to authorized representatives and system owners as well as the minimum service-related obligations that the manufacturer shall extend to system owners.

    NOVEMBER 2017

    60-2017 Drinking Water Treatment Chemicals - Health Effects

    This Standard contains health effects requirements for drinking water treatment chemicals that are directly added to water and are intended to be present in the finished water. This Standard also contains health effects requirements for other chemical products that are directly added to water but are not intended to be present in the finished water. Chemicals covered by this Standard include, but are not limited to, coagulation and flocculation chemicals, softening, precipitation, sequestering, pH adjustment, and corrosion/scale control chemicals, disinfection and oxidation chemicals, miscellaneous treatment chemicals, and miscellaneous water supply chemicals.

    Contaminants produced as by-products through reaction of the treatment chemical with a constituent of the treated water are not covered by this Standard.

    Acknowledging the fact that indigenous microorganisms may be present in drinking water, products resulting in the intentional introduction of microorganisms for the treatment of drinking water are excluded from the scope of the Standard.

    OCTOBER 2017

    P453-2017 Cooling Tower Water Systems - Treatment, Operation, and Maintenance to Prevent Legionellosis

    The purpose of this Protocol is to set forth minimum practices required for treatment, operation, and maintenance of cooling tower water systems, including requirements for documentation, recordkeeping, validation, and auditing in order to prevent Legionellosis.

    This Protocol covers all owners and operators of buildings and other premises that are equipped with cooling tower water systems, including all building-associated cooling towers used in connection with HVAC systems and all industrial cooling towers and evaporative condensers used in connection with process cooling. This Protocol does not cover hyperbolic towers.

    In order for the owner of a cooling tower water system to comply with this Protocol, all of the applicable requirements of this Protocol shall be met.

    In some jurisdictions, there are rules, regulations, and codes that cover owners and operators of buildings and other premises that are equipped with cooling tower water systems. Where there are differences between the requirements of this Protocol and such rules, regulations, and codes, the more stringent or specific shall apply.

    SEPTEMBER 2017

    NSF 46-2017 Evaluation of components and devices used in wastewater treatment systems

    This Standard is intended for use with components and devices not covered by other NSF wastewater standards. Components and devices covered by this Standard are intended for use with greywater or blackwater or both. Management methods for the end-products of these components and devices are not addressed in this Standard. This Standard shall in no way restrict new system designs, provided that such designs meet the minimum specifications described herein.

    All devices and components meeting the scope of this Standard shall comply with all of the requirements described in 1 through 8. In addition, devices and components shall comply with the applicable subsequent section(s) contained in this Standard. Where subsequent sections of the Standard include requirements that overlap with those found in 1 through 8, the requirements of both sections shall be met unless otherwise specified in the requirements of the subsequent section.

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