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Material Database:
SRM 1635a - Trace Elements in Coal, (Subbitumimous)
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| Type |
Certified reference material |
| Producer |
National Institute of Standards and Technology (NIST)
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| Status |
Available |
| Material |
Powder |
| Reference |
SRM 1635a |
| Catalog (Web) |
https://www-s.nist.gov/srmors/view_detail.cfm?srm=1635a |
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Description
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This Standard Reference Material (SRM) is intended primarily for the evaluation of techniques used in the analysis of coals and materials of a similar matrix. A unit of SRM 1635a consists of 50 g of subbituminous coal that was ground to pass a 250 µm (60 mesh) sieve, homogenized, bottled under an argon atmosphere, and sealed in an aluminized bag.
keywords: environmental materials , geological materials , coal , trace elements , heavy metals
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Package |
50g bottle
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Parameter
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| Analyte | Antimony | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.251 ± 0.03 | |
| Analyte | Arsenic | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.860 ± 0.01 | |
| Analyte | Barium | | Specification | total element concentration | | Parameter | Certified value | | Unit | wt.% | | Result | 0.03578 ± 0.0009 | |
| Analyte | Chromium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 3.56 ± 0.18 | |
| Analyte | Cobalt | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 2.004 ± 0.04 | |
| Analyte | Copper | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 11.42 ± 0.74 | |
| Analyte | Iron | | Specification | total element concentration | | Parameter | Certified value | | Unit | wt. % | | Result | 0.2472 ± 0.002 | |
| Analyte | Lead | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 2.85 ± 0.5 | |
| Analyte | Manganese | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 6.69 ± 0.14 | |
| Analyte | Mercury | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.0836 ± 0.006 | |
| Analyte | Nickel | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 5.37 ± 0.30 | |
| Analyte | Rubidium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 1.226 ± 0.043 | |
| Analyte | Selenium | | Specification | ThO2 | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.662 ± 0.09 | |
| Analyte | Sodium | | Specification | total element concentration | | Parameter | Certified value | | Unit | wt.% | | Result | .1031 ± 0.0078 | |
| Analyte | Strontium | | Specification | total element concentration | | Parameter | Certified value | | Unit | wt.% | | Result | 0.0160 ± 0.001 | |
| Analyte | Thorium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 1.299 ± 0.05 | |
| Analyte | Uranium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.4792 ± 0.009 | |
| Analyte | Vanadium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 13.34 ± 0.59 | |
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