U.S Brass Alloy Standard ASTM
1. Chenyee _ China Free Cutting Brass
2. Chenyee _ China Forgng Brass
3. Chenyee _ C36000
4. Chenyee _ C37700
5. Chenyee _ C46400 & C46500
6. Chenyee _ C84400
7. Chenyee _ C87850
8. Chenyee _ C99700
9. Chenyee _ C6802

Europe Brass Alloy Standard EN12164
1. Chenyee _ China Free Cutting Brass
2. Chenyee _ China Forgng Brass
3. Chenyee _ CW614N
4. Chenyee _ CW617N
5. Chenyee _ CW602N
6. Chenyee _ DZR

Why Lead Free ?

Califonia and Vermont have passed new law requiring dramatic reduction of lead content in potable water system. Maryland has a lead free inititative under way and lawsuit are pending in Washington D.C. regarding lead levels in drinking water. Nationwide legislation on this vital matter will likely follow in near future. With focus intensifying on the issue, more attention will given to lead free water systems for all public facillities, schools, restaurants, and even private facillities and home.

CHENYEE have always met ot exceeded federal and state level requirepments for potable water. These standards are unmatched this industry. White we suport the new lead free initiative, we feel that out exisiting plumbing products are safe, and still will be offered to the states that have yet to enact the new lead free effot.

* It should be noted that lead free brass does not mean " completely void of lead". Safe levels have been established at " not more than a weight average of 0.25% of plumbing fixtures, valves, fittings and pipes. *

DZR Brass

5.8.1 Dezincification resistance

5.8.1.1 Sampling
Three test specimens selected at random shall be conditioned to standard laboratory conditions of 73 ± 3.6o F (23 ± 2o C) prior to testing.

5.8.1.2 Testing
Test specimens shall be tested according to ISO 6509 “Corrosion of metal and alloys – Determination of dezincification resistance of brass”.

5.8.1.2 Requirements
The maximum depth of dezincification shall not exceed 200 μm. Failure of one of the three specimens tested is cause for retest of three additional specimens.
Failure of one specimen in the retest shall constitute failure in the test.? 2013 NSF NSF/ANSI 14 – 2012

SCC

5.8.2 Stress corrosion resistance

5.8.2.1 SamplingThree test specimens selected at random shall be conditioned to standard laboratory conditions prior to testing.

5.8.2.2 Testing
Test specimens shall be tested according to ASTM B858 “Standard Test Method for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking
in Copper Alloys” or ISO 6957 “Copper alloys – Ammonia test for stress corrosion resistance” in a test solution of pH 9.5.

5.8.2.3 Requirements
There shall be no evidence of cracking when viewed with a microscope with a minimum magnification of 10X. Failure of one of the three specimens tested is cause
for retest of three additional specimens. Failure of one specimen in the retest shall constitute failure in the test.

General Tolerane ISO2768-1