PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and uncertainties, the certificate is the only official source.
- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only
- Detail
- Certificate
- Report of Investigation
- MSDS
- Data Files
- Questionnaire
- Certified values are normal font
- Reference values are italicized
- Values in parentheses are for information only
**Refer to certificate to ascertain if the value reported represents total iron or species-specific iron.