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Heavy metal Testing
In recent years, heavy metal pollution incidents have occurred frequently. Heavy metal pollution is receiving increasing attention. So what are heavy metals? What are the hazards of heavy metals? What environmental standards are there for heavy metal pollution in various countries? Nowadays, heavy metal pollution has been awareness and concerned by governments, relevant groups and organizations in the world and many enterprises. Therefore, many relevant regulations have emerged, and relevant standards for heavy metals have been established.
What is heavy metal?
Heavy metals generally refer to metals with a density greater than 4.5g/cm, including lead, cadmium, chromium, nickel, cobalt, mercury, arsenic, antimony, copper, antimony, selenium, etc. Heavy metals in textiles, clothing and apparel products mainly come from dyes, auxiliaries and finishing agents used in dyeing and finishing processes.
What are the hazards of heavy metals?
Certain heavy metals are essential for life support at low doses, but when the concentration of heavy metals accumulates in the body to a certain threshold, it can be toxic or even life-threatening to humans.
| Standard | Items/ requirements |
| REACH | Total Lead 500mg/kg Total Cadmium 100mg/kg Nickel Release Body pierced articles: 0.2μg/cm2/week Direct and prolonged contact with the skin articles: 0.5μg/cm2/week |
| CPSIA （The Consumer Product Safety Improvement Act） | Total lead Substrate: 100mg/kg; Coating: 90mg/kg |
| California Proposition 65 (Prop 65) (Case No. RG-10-514803) |
Total Lead Substrate: 200mg/kg; Coating: 90mg/kg Total Cadmium 300mg/kg |
| CA65 AB1681 | Total Lead (1) Metal alloys (electroplated)< 60000ppm (2) Metal Alloys (unplated)< 15000ppm (3) Plastic / Rubber< 200ppm (4) Dye / surface coating< 600ppm (5) Materials not otherwise classified 600ppm Total Cadmium 300mg/kg |
| ASTM F2999 | Total Lead Except exemption materials: (1) Metal alloys (electroplated)< 60000ppm (2) Metal Alloys (unplated)< 15000ppm (3）Plastic / Rubber< 200ppm (4）Dye / surface coating< 600ppm (5）Materials not otherwise classified 600ppm Total Cadmium 15000mg/kg Soluble Cadmium Plastic small parts: 75ppm; Metal small parts: 200μg 7 Soluble heavy metals（Coating） Cd: 75ppm, Hg: 60ppm, Cr: 60ppm, As: 25ppm, Se: 500ppm, Sb: 60ppm, Ba: 1000ppm |
| ASTM F2923 | Total Cadmium Substrate: 100mg/kg；Coating: 90mg/kg Total Cadmium: 300mg/kg Soluble Cadmium Plastic small parts: 75ppm; Metal small parts: 200μg 7 Soluble heavy metals（Coating） Cd: 75ppm, Hg: 60ppm, Cr: 60ppm, As: 25ppm, Se: 500ppm, Sb: 60ppm, Ba: 1000ppm Nickel Release Body pierced articles: 0.2μg/cm2/week Direct and prolonged contact with the skin articles: 0.5μg/cm2/week |
| GB 28480 | Total Lead（Children jewelry） 300mg/kg Total Cadmium 100mg/kg Pb、As、Hg、Cr(VI) 1000ppm 8 Soluble heavy metals Pb: 90mg/kg Cd: 75mg/kg Hg: 60mg/kg Cr: 60mg/kg As: 25mg/kg Se: 500mg/kg Sb: 60mg/kg Ba: 1000mg/kg Nickel Release Body pierced articles: 0.2μg/cm2/week Direct and prolonged contact with the skin articles: 0.5μg/cm2/week |
| EN71-3 | 19 Soluble heavy metals AI、Sb、As、Ba、B、Cd、III、VI、Co、Cu、Pb、Mn、Hg、Ni、Se、Sr、Sn、Organic Tin、Zn |
| ASTM F963 | Total Lead Substrate: 100mg/kg; Coating: 90mg/kg 8 Soluble heavy metals Pb: 90mg/kg Cd: 75mg/kg Hg: 60mg/kg Cr: 60mg/kg As: 25mg/kg Se: 500mg/kg Sb: 60mg/kg Ba: 1000mg/k |
| GB 6675 | 8 Soluble heavy metals Pb: 90mg/kg Cd: 75mg/kg Hg: 60mg/kg Cr: 60mg/kg As: 25mg/kg Se: 500mg/kg Sb: 60mg/kg Ba: 1000mg/k |
| RoHS EU Directive | Pb: 1000 mg/kg Cd: 100mg/kg Hg: 1000mg/kg Cr(VI): 1000mg/kg PBBs: 1000mg/kg PBDEs: 1000mg/kg |
| 94/62/EC EU Packaging Directive | 4 Heavy metals The sum of total Cd、Pb、Hg and Cr(VI) is not exceed 100mg/kg |
| TPCH American Packaging Directive | 4 Heavy metals The sum of total Cd、Pb、Hg and Cr(VI) is not exceed 100mg/kg |
| Other regulations, directives or standards | ........ |