If you don't know about it, California does have a ROHS law. Some examples:
--------------------------------------------------------------------- California's Legislature modeled the California RoHS Law after the European Union's (EU's) Directive 2002/95/EC which bans certain hazardous substances from electrical and electronic equipment sold in the EU. The California RoHS law required DTSC to adopt regulations prohibiting a covered electronic device from being sold or offered for sale in California if that device is prohibited from being sold or offered for sale in the EU due to the presence of lead, mercury, cadmium, or hexavalent chromium above certain maximum concentration values (MCVs). DTSC's California RoHS regulations took effect January 1, 2007.
The maximum concentration values (MCV) under California's RoHS Regulation are the same as those that apply to the European Union's RoHS Directive. For lead, mercury, and hexavalent chromium the MCV is 0.1% by weight. The MCV for cadmium is 0.01% by weight. In contrast to the EU, California does not restrict PBB and PBDE. The presence of restricted substances is measured for each homogeneous material contained within the device, not for the device as a whole.
The California legislation is modeled after the EU Directive but covers a narrower scope, limiting the content of only four metals (lead, cadmium, mercury and hexavelent chromium). California RoHS also limits the scope of product affected to "covered electronic devices" including LCD's, CRTs and the like. The maximum concentration limits for the restricted metals under CA RoHS are
0.1% by weight for lead, mercury and hexavalent chromium and is 0.01% by weight for cadmium. The state regulation affects anyone who sells, or offers for sale, the prohibited items; including manufacturers, distributors, wholesalers and retailers.Covered Electronic Devices What is a "Covered Electronic Device"?
Flat screen television
A covered electronic device is a video display device with a screen greater than four inches, measured diagonally, which DTSC has identified in regulation as a device that is presumed to be hazardous waste when discarded.
A video display device is an electronic device with an output surface that displays, or is capable of displaying, moving graphical images or a visual representation of image sequences or pictures, showing a number of quickly changing images on a screen in fast succession, to create the illusion of motion. This definition includes, if applicable, any device that is an integral part of the display, in that it cannot easily remove it from the display. A video display device may use, but is not limited to, a cathode ray tube (CRT), liquid crystal display (LCD), gas plasma, digital light processing or other image projection technology.
-See Public Resources Code section 42463 for complete definitions
-See DTSC's Electronic Waste (E-waste) web site for additional information
Current List of Covered Electronic Devices
DTSC has identified and listed nine categories of covered electronic devices in its regulations. The list of devices includes:
Television Cathode ray tube containing devices (CRT devices) Cathode ray tubes (CRTs) Computer monitors containing CRTs Laptop computers with liquid crystal display (LCD) Flat screen televisionLCD containing desktop monitors LaptopTelevisions containing CRTs Televisions containing LCD screens Plasma televisions Portable DVD players with LCD screens
You can find the current list at California Code of Regulations, title 22, chapter 11, appendix X, subdivision (c):
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You might be able to get away with using lead solder in the 0.1% by weight rule. I guess you'd have to weigh the pcb before adding solder paste, then find the weight after soldering to get the amount of SnPb. 37% of the difference gives you the amount of lead.
Then add the finished weight of the chassis including mounting bolts, feet, connectors, handles, etc.
I wonder if Europe has the same rule.