A、≤40×10-6 B、≤100×10-6 C、≤40×10-2 D、≤100×10-2
A、≤0.001% B、≤0.01% C、≤0.1% D、≤0.5%
A、≥90.0% B、≥98.0% C、≥99.0% D、≥99.99%