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Standard Materials
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Designation
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Type
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Unit Form
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Value Assignments (from ACG)
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Origin
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Availability
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Comments
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|---|---|---|---|---|---|---|
| RM 8562 | Isotope Reference Material | Gaseous CO2 in breakseal | delta C-13 (R), delta O-18 (R) | Mantle gas | SRMP and IAEA | |
| RM 8563 | Isotope Reference Material | Gaseous CO2 in breakseal | delta C-13 (R), delta O-18 (R) | Petroleum | ||
| RM 8564 | Isotope Reference Material | Gaseous CO2 in breakseal | delta C-13 (R), delta O-18 (R) | Corn | ||
| IAEA-NGS 1 | Isotope Intercomparison Material | Natural Gas (>80% CH4) in pressurized cylinder | delta C-13 and H-2 of hydrocarbons (I) | Coal |
RM status
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| IAEA-NGS 2 | Isotope Intercomparison Material | Natural Gas (>50% CH4) in pressurized cylinder | delta C-13 and H-2 of hydrocarbons (I) | Petroleum | ||
| IAEA-NGS 3 | Isotope Intercomparison Material | Natural Gas (>95% CH4) in pressurized cylinder | delta C-13 and H-2 of hydrocarbons (I) | Landfill | ||
| SRM 1649a | Standard Reference Material | Urban dust in vial | delta C-13 and C-14 of speciated carbon (R) | Wash. D.C. | SRMP | Certified for organic compounds; collected in 1970s; seived |
| RM 8785 | Standard Reference Material | Urban dust on quartz media | delta C-13 and C-14 of speciated carbon | Wash. D.C. | SRMP | Comprised of SRM 1649a, size-segregated to PM2.5 |
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This
page last updated on March 15, 2006 by the Webmaster
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