| Chemical | Method Number | Method Name | Compounds |
|---|---|---|---|
| Indeno[1,2,3-cd]pyrene | 5506 | POLYNUCLEAR AROMATIC HYDROCARBONS by HPLC | 5506cpds |
| Indeno[1,2,3-cd]pyrene | 5515 | POLYNUCLEAR AROMATIC HYDROCARBONS by GC | |
| Indium | 7303 | ELEMENTS by ICP (Hot Block/HCl/HNO3 Digestion) | |
| Iodine | 6005 | IODINE | |
| Iron | 7300 | ELEMENTS by ICP (Nitric/Perchloric Acid Ashing) | 7300cpds |
| Iron | 7301 | ELEMENTS by ICP (Aqua Regia Ashing) | |
| Iron | 7303 | ELEMENTS by ICP (Hot Block/HCl/HNO3 Digestion) | |
| Iron | 9102 | ELEMENTS ON WIPES | |
| Isoamyl acetate | 1450 | ESTERS I | 1450cpds |
| Isoamyl alcohol | 1402 | ALCOHOLS III | 1402cpds |
| Isoamyl alcohol | 1405 | ALCOHOLS COMBINED | |
| Isobutyl acetate | 1450 | ESTERS I | 1450cpds |
| Isobutyl alcohol | 1401 | ALCOHOLS II | 1401cpds |
| Isobutyl alcohol | 1405 | ALCOHOLS COMBINED | |
| Isobutyraldehyde | 2539 | ALDEHYDES, SCREENING | |
| Isocyanates | 5521 | ISOCYANATES, MONOMERIC | |
| Isocyanates | 5522 | ISOCYANATES | |
| Isocyanates | 5525 | ISOCYANATES, TOTAL (MAP) | |
| Isophorone | 2508 | ISOPHORONE | |
| Isophorone | 2556 | ISOPHORONE | |
| Isophorone diisocyanate | 5525 | ISOCYANATES, TOTAL (MAP) | |
| Isopropyl acetate | 1454 | ISOPROPYL ACETATE | |
| Isopropyl acetate | 1460 | ISOPROPYL ACETATE | |
| Isopropyl alcohol | 2549 | VOLATILE ORGANIC COMPOUNDS (Screening) | |
| Isopropyl alcohol | 1400 | ALCOHOLS I | 1400cpds |
| Isopropyl ether | 1618 | ISOPROPYL ETHER | |
| Isopropyl glycidyl ether | 1620 | ISOPROPYL GLYCIDYL ETHER | |
| Isovaleraldehyde | 2018 | ALIPHATIC ALDEHYDES | |
| Isovaleraldehyde | 2539 | ALDEHYDES, SCREENING |
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