“a maximum concentration value of 0,1 % by weight in homogeneous materials for lead, mercury, hexavalent chromium, polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE)”----《2005/618/EC》 按我的理解,PBB和PBDE的含量应分别在0,1 %以下,但我看到有些公司的符合性声明中是PBB+PBDE<0,1 %,请问是我的英语太差还是那些公司理解错误?