The Pressure Equipment Directive 97/23/EC (PED)  of the EU sets out the standards for the design and fabrication of pressure equipment generally over one liter in volume and having a maximum pressure more than 0.5 bar gauge. It also sets the administrative procedures requirements for the "conformity assessment" of pressure equipment, for the free placing on the European market without local legislative barriers. ALL OF AQUASKY PRESSURE TANK ARE CERTIFED BY PED AND MADE BY PED CERTIFIED WELDER
NSF/ANSI 58 establishes the minimum requirements for the certification of point-of-use (POU) reverse osmosis systems designed to reduce contaminants that may be present in public or private drinking water. The scope of NSF/ANSI 58 includes material safety, structural integrity, total dissolved solids (TDS) reduction and other optional contaminant reduction claims. The most common optional claims addressed by NSF/ANSI 58 include cyst reduction, hexavalent and trivalent chromium reduction, arsenic reduction, nitrate/nitrite reduction, and cadmium and lead reduction.
NSF/ANSI 61 ensures that your product meets the regulatory requirements for the U.S. and Canada, and it can often meet or fulfill the testing requirements for many other countries as well. Market leaders strive to attain NSF certification as a mark of distinction that provides their customers with assurance that their product is safe for use in drinking water. NSF/ANSI 61 testing covers all products with drinking water contact from source to tap, and determines what contaminants may migrate or leach from your product into drinking water. It also confirms if they are below the maximum levels allowed to be considered safe.
ISO 9001:2015 sets out the criteria for a quality management system and is the only standard in the family that can be certified to (although this is not a requirement). It can be used by any organization, large or small, regardless of its field of activity. This standard is based on a number of quality management principles including a strong customer focus, the motivation and implication of top management, the process approach and continual improvement.
Manufacturer's name or trademark, model number, maximum working pressure, factory pre-charged pressure of air inside the tank and maximum water temperature shall be permanently marked on the product. Tanks shall be marked with the UPC® certification mark. Pre-pressurized potable water tanks with a barrier between the water & air portion of the tank. To be installed in accordance with the manufacturer's instructions and the requirements of the latest edition of the Uniform Plumbing Code. Products listed on this certificate have been tested by an IAPMO R&T recognized laboratory. This recognition has been granted.