ISO 9001 Certification


For your reassurance, every piece of Perrin & Rowe brassware is engineered from approved materials to exacting standards and hand-assembled within an ISO 9001:2015 accredited, quality assured environment. Recognized all over the world for its stringent, detailed standards and attention to processes ISO 9001:2015 approval is a true mark of international quality.

It is awarded in recognition of the organization’s Quality system for the design and manufacture of Kitchen and Bathroom Brassware, Drinking Water Filtration Systems, Instant Hot Water Dispensers, Bathroom Accessories and Sanitary Chinaware.

Perrin & Rowe believes in upholding the international standards required wherever its products are sold. Our principal international approvals include NSF, UPC, KIWA and the Australian WaterMark.

We have products listed and approved in the UK, Australia, Canada & USA. In addition, our products have been tested for use in the Czech Republic, China, Thailand and Singapore.


The principle legislation pertaining to water supply installations in the UK is the Water Supply (Water Fittings) Regulations 1999 for England and Wales, the Water Bylaws 2000, Scotland and the Water Regulations Northern Ireland.

These regulations were introduced in July 1999 when each of the Water Suppliers in England & Wales ceased to enforce their own bylaws. They were brought under the banner of the standardised regulations determined by the Department of the Environment, Transport and the Regions (DETR). Scotland joined the scheme later in April 2000.

The Water Regulations Advisory Scheme (WRAS) is a subscription membership company limited by guarantee and was incorporated on 4 August 2008. The subscribers of WRAS are the 26 UK Water Suppliers. The purpose of WRAS is to contribute to the protection of public health by preventing contamination of public water supplies and encouraging the efficient use of water by promoting and facilitating compliance with the Water Supply (Water Fittings) Regulations and Byelaws in Scotland. They have provided an approval and listing scheme that has become the byword for product approvals in the UK plumbing world.

To enable a product to be certified to meet with the requirements of the Water Supply (Water Fittings) Regulations it must be mechanical tested to the relevant standards. There are only two accredited mechanical test facilities in the UK which are KIWA Ltd (Watertec Trading Division) and NSF International (who work closely with WRAS).

In addition, all materials used in these products must meet with the requirements of BS 6920 entitled ‘Suitability of non-metallic materials and products for use in contact with water intended for human consumption, with regards to their effect on the quality of the water’. It is a requirement that all non-metallic materials which come into contact with water intended for domestic use must conform to the requirements of BS 6920. This includes several tests which assess the suitably of non-metallic materials to ensure they do not impart odour or flavour, cause a change in appearance (colour or turbidity), promote microbial growth and leach substances (including toxic metals) harmful to human health. There are only four test facilities in the UK that can carry out the BS 6920 testing which are Intertek, LGC Ltd, The Water Quality Centre (WQC) and NSF International.

Once fully tested the plumbing fittings can be certified in the UK by either WRAS or KIWA Watertec. The certificates of both organisations each state that the plumbing fitting “Complies with the requirements of the Water Supply (Water Fittings) Regulations”. All Water Boards in the UK will allow you to install a product be it a WRAS certified fitting or a KIWA Watertec certified fitting.

Perrin & Rowe have an extensive range of our UK products tested, certified and listed by KIWA Watertec.


In North America we have a large range of products listed with the International Association of Plumbing and Mechanical Officials (IAPMO). We have seven separate files listed: -

Our Plumbing Fixture Fittings file 3366 was opened with IAPMO in 2005. This includes 240 Kitchen and Bathroom products which comply with the Uniform Plumbing Code (UPC®) and the National Plumbing Code of Canada. These products have been tested and listed to the relevant sections of the combined USA/Canadian Plumbing Fixture fittings standard ASME A112.18.1-2018/CSA B125.1-18. Products may also (where applicable) are compliant with ASSE 1016-2017/ASME A112.1016-2017/CSA B125.16-17.

All products listed in this file will display the cUPC® mark. Designated as an American National Standard, this code was developed to govern the installation and inspection of plumbing systems as a means of promoting the public's health, safety and welfare. It is a mark which indicates the product has gone through a rigorous process of mechanical and materials testing to confirm its compliance with the codes and standards that govern its use. It helps building inspectors to easily identify the compliance of the products and accept them for installation and use.

The Drinking water system components – Health effects file N-6994 was opened in 2005. Products listed in this file have materials and parts that come into contact with water which are manufactured in compliance with the highly exacting standard ANSI/NSF 61-2017.

The Lead-Free Plumbing Products California Lead Plumbing Law – Devices and Components file 6342 was opened in October 2009. These products are compliant with the following standards, Section 1417 (d) of the Safe Drinking Water Act & the lead content requirements of Section 116875 of the California Health & Safety Code NSF/ANSI 372-2011.

File 5514 lists the certified EPA WaterSense High Efficiency Lavatory Faucets. These models meet with the EPA’s WaterSense Specification (Version 1.0, 10-01-2007 edition). This details the Maximum Rated Flow for each of the faucets.

File G-9197 Water Efficient Plumbing Fixture Fitting file. Products listed are compliant with the following codes, Cal Green-2013, Water Efficiency and Sanitation Standard for the Built Environment. Whilst meeting with the requirements of the Water Efficiency and Sanitation – 2017 standard.

Our Ceramic Plumbing Fixtures file 5609 was opened in April 2008. All of our Chinaware, Basins, Pedestals and Water closets in the Victorian, Edwardian and Deco ranges, plus Contemporary, Oriental and Petite Basins are listed. These products are compliant with the Uniform Plumbing Code (UPC®) and the National Plumbing Code of Canada. They have been tested compliance with ASME A112.19.2-2013/CSA B45.1-13 including Update No.1 dated October 2013.

Our low flush 1.28 US gallons per flush toilets are certified under file 8865 EPA WaterSense High Efficiency Toilets. Products are compliant with the EPA WaterSense Specification for Tank-Type Toilets (Version 1.2, 06-02-2014 edition).

We also have a growing number of NSF61 & 372 tested & compliant products tested through NSF International who are based in Ann Arbor, Michigan.

Additional US listings include EPA WaterSense, CEC, DOE and in Massachusetts, our Kitchen and bathroom products are listed with the Office of Consumer Affairs & Business Regulation (OCABR) Division of Professional Licensure approved plumbing products.


The plumbing regulations in Australia require WaterMark certification for all plumbing products to prove compliance with the design, materials and construction requirements of the Australian tapware and sanitaryware standards. Without WaterMark certified products, it is illegal for a plumber to sign-off a project and issue a compliance certificate.

Perrin & Rowe products manufactured in compliance with the WaterMark requirements are engraved or marked with the WaterMark certification marking. By purchasing from our Australian distributor, you will ensure that you are buying product, which fits the local plumbing (requiring no additional adapters or converters for installation), meets WELS and WaterMark certifications and plumbing standards for that country.

Our Watermark Certificate of Conformity – level 1, WMKA 02818 is issued by SAI-Global which certifies that our tapware is evaluated to AS/NZS 3718:2005 and our showers to standard AS/NZS 3662:2005.

Australian Certification Services list our toilets and bidets under WaterMark level 1, certificate #23127. These products meet with the requirements of the following standards: AS 1172.1:2005 Water closets (WC) Part 1: Pans, AS 1172.2:1999 Amendment 1 2001 Amendment 2 2005 Water closet (WC) pans of 6/3 litre capacity or proven equivalent Part 2: Cistern, and AS 3494:1994 bidettes and bidets.

The English Tapware Company, our Australian distributor, provide more information on their website: click here.