nonleaded copper specification

[AB1953 Nonleaded Act connotation].

On September 20, 2006, California passed a new plumbing product law, AB1953 (also known as the California Lead Free Act), which went into effect on January 1, 2010, and all water fixtures used for direct human consumption or cooking are strictly regulated by AB1953.

All other end-use water fixtures, including kitchen faucets, bar faucets, bathroom basin faucets, drinking fountains, and valves and meters, must meet the lead content standard of 0.25% or less as required by the Act, regardless of whether they are installed for commercial or residential use. According to the current regulations, the lead-free standard is that the lead content in pipes and their supporting equipment shall not exceed 8%, and the lead content in water pipes and their supporting equipment shall not exceed 4%, which is in compliance with the regulations. However, the California AB 1953 Act adjusted the "lead-free" standard for products related to drinking water supply systems by adopting a weighted concentration control instead of a simple concentration control, which requires that the lead content of the parts in contact with water in a product must be less than 0.25% of the total lead content calculated as a percentage of the entire pumping area.

All other end-use water fixtures, including kitchen faucets, bar faucets, bathroom basin faucets, drinking fountains, and valves and meters, must meet the lead content standard of 0.25% or less as required by the Act, regardless of whether they are installed for commercial or residential use. Under current regulations, the lead-free standard is that the lead content in piping and ancillary equipment must not exceed 8%.

In the United States, the lead content in water pipes and their supporting equipment is not more than 4%, which is the requirement. However, the California AB 1953 Act adjusted the "lead-free" standard for products related to drinking water supply systems by adopting a weighted concentration control instead of a simple concentration control, which requires that the lead content of parts in contact with water in a product must be less than 0.25% of the total lead content calculated as a percentage of the entire waterway area.

The difference between AB1953 lead-free bill and NSF61 specification].

The AB1953 Lead Free Act is not intended to replace NSF 61, the standard for measuring the amount of lead and other heavy metals and organic substances that are released into water when a product is used. NSF has made a minor change to the listing and added a note stating "This product is also certified in accordance with NSF/ANSI Standard 61-Appendix G (lead content weighted average ≤ = 0.25%) and complies with AB 1953.

【About RoHS regulations】：

The EU market has implemented the RoHS Green Standard since July 1, 2006, which requires that the content of lead, mercury and hexavalent chromium in various materials used in electrical and electronic equipment be less than 0.1% (1000ppm) and the content of cadmium be less than 0.01% (100ppm). Electrical and electronic equipment that does not meet these standards will be banned from the EU market. For lead in copper alloys (including fast-cut brass), an exemption of less than 4% is currently provided. However, as alternative materials are developed and become more widely available, this exception will be removed. The maximum lead content in copper alloys subject to the exemption is 4%, which in layman's terms means that the maximum lead content in copper alloys is 40,000 ppm or less, which is fully RoHS compliant compared to low lead copper materials subject to the exclusion.