This certificate is designed in accordance with ISO 17034 and ISO Guide 31. This reference material (RM) was designed,produced and verified in accordance with ISO/IEC 17025, ISO 17034 and a registered quality management system ISO 9001.
| CERTIFIED | ||||
| Component No. (组分数) | Component (组分) | CAS No. | Concentration (μ驳/尘尝) (浓度) | Relative Expanded Uncertainty(%) (k=2) (相对扩展不确定度) |
| 1 | 2,4,4'-Trichlorobiphenyl-d4 (2,4,4'-叁氯联苯-诲4) | 1219799-32-2 | 100 | 3 |
| 2 | 2,3,4,4',5-Pentachlorobiphenyl-d4 (2,3,4,4',5-五氯联苯-诲4) | 1219799-24-2 | 100 | 3 |
