ROHS Policy

SNS Cooling Technology Inc. meets the expectations of the ROHS directive set forth by WEEE, and we only use products and services which meet the ROHS requirement. The following elements are identified by WEEE as restricted material.

  1. Lead
  2. Mercury
  3. Cadmium
  4. Haxavalent Chromium (VI or Cr6+)
  5. Polybrominated Biphenyls (PBB*)
  6. Polybrominated Diphenyl Ether (PBDE*)

* PBB and PBDE are flame retardants used in some plastics.

SNS Cooling Technology Inc. meets the goals set by EC Directive on Waste Electrical and Electronic Equipment (WEEE) for ROHS materials.
Below is a table listed the ROHS restricted materials.


Substance ROHS LIMIT: MCV – Maximum Concentration Values
1. Lead (Pb) Lead (Pb) within components = < 0.10% = < 1000 PPM

refer ROHS exemption for lead below

2. Mercury (Hg) < 0.10% = < 1,000 PPM
3. Haxavalent Chromium (Cr VI) < 0.10% = < 1,000 PPM
4. Cadmium (Cd) < 0.01% = < 100 PPM
5. Poly brominated flame retardants (PBB) < 0.10% = < 1,000 PPM
6. Polybrominated Diphenyl Ethers (PBDE) < 0.10% = < 1,000 PPM


  • Lead as an alloying element in steel containing up to 0.35% lead by weight, aluminum containing up to 0.4% lead by weight and as a copper alloy containing up to 4% lead by weight.
  • Lead in high melting temperature type solders (i.e. lead based alloys containing 85% by weight or more lead)-lead in solders for servers, storage and storage array systems, network infrastructure equipment for switching, signaling, transmission as well as network management for telecommunications- lead in electronic ceramic parts (e.g. piezoelectric devices).
  • Hexavalent chromium as an anti-corrosion of the carbon steel cooling system in absorption refrigerators.

Please refer to the table below for a list of ROHS finishes offered by SNS Cooling Technology Inc.


Surface Finish ROHS Status Applicable standard
Wash YES Degrease Only
Black Anodize YES MIL-A-8625F
Clear Anodize YES MIL-A-8625F
Yellow Chromate NO MIL-DTL-5541F-TYPE 1
Trivalent Chromate YES MIL-DTL-5541F-TYPE 2
Electro Less Nickel plating YES ASTM-B733
Nickel Plating( Electro Deposited) YES SAE-AMS-QQ-N-290
Tin Plating YES Lead Free


In case of any questions or concerns with the ROHS policy of SNS Cooling Technology Inc. please email us at [email protected]