Modern brass door slide lock: 52,600 ppm Lead + 477 ppm Antimony.

Modern brass door slide lock

• Lead (Pb): 52,600 +/- 2,000 ppm
• Antimony (Sb): 477 +/- 161 ppm
• Selenium (Se): 18,800 +/- 900 ppm
• Tin (Sn): 22,000 +/- 600 ppm
• Zinc (Zn): 370,900 +/- 3,000 ppm
• Copper (Cu): 521,500 +/- 3,400 ppm
• Nickel (Ni): 2,044 +/- 238 ppm
• Iron (Fe): 8,513 +/- 537 ppm