Purity (American Society for Testing and Materials (ASTM) standard test methods: D1348 and D3516)

• 99.9% Nano-silver

Heavy metal residual in nano-silver yarn (ASTM)

• Arsenic (As) <0.06ppm
• Cadmium (Cd) <0.05ppm
• Mercury (Hg) <0.05ppm
• Lead (Pb) 0.3ppm

Test trace, please refer to Nano-silver page