No, not closely related.
SS-00259 is Sony's Hazardous Substance Control Standard, in other words, if you supply Sony directly or indirectly, you have to test according to this standard, and there are a lot of substances controlled in this standard. There are heavy metal content, and organic compounds and so on.
ROHS is only the simplest of the EU's hazardous substances control regulations, containing six.
Expanded information:
Six Categories of Hazardous Substances:
RoHS is aimed at all electrical and electronic products that may contain any of the above six hazardous substances during the manufacturing process as well as in the raw materials, which mainly include: White goods such as refrigerators and washing machines.
Microwave ovens, air conditioners, vacuum cleaners, water heaters, etc., black home appliances, such as audio, video products, DVDs, CDs, TV receivers, IT products, digital products, communication products, etc.; power tools, electric and electronic toys, medical and electrical equipment.
1, lead (Pb) Examples of the use of the substance: solder, glass, PVC stabilizer.
2, Mercury (Hg) (mercury) Examples of the use of the substance: thermostats, sensors, switches and relays, light bulbs.
3, Cadmium (Cd <gé>) Examples of the use of the substance: switches, springs, connectors, housings and PCBs, contacts, batteries.
4., Hexavalent chromium (Cr 6+ <gè>) Examples of the use of the substance: metal anti-corrosion coatings.
5., Polybrominated biphenyls (PBBS) Examples of the use of the substance: Flame retardants, PCBs, connectors, and plastic housings.
6, polybrominated diphenyl ethers (PBDE) Examples of the use of the substance: flame retardants, PCB, connectors, plastic shells.
Baidu Encyclopedia-RoHS