| Chemical | Method Number | Method Name | Compounds |
|---|---|---|---|
| Heptanal | 2539 | ALDEHYDES, SCREENING | |
| n Heptane | 2549 | VOLATILE ORGANIC CPDS (Screening) | |
| n Heptane | 1500 | HYDROCARBONS, BP 36 126 C | 1500cpds |
| Herbicides (Air Sampling) | 5602 | CHLORINATED AND ORGANONITORGEN HERBICIDES (AIR SAMPLING) | |
| Herbicides (Hand Wash) | 9200 | CHLORINATED AND ORGANONITORGEN HERBICIDES (HAND WASH) | |
| Herbicides (Patch) | 9201 | CHLORINATED AND ORGANONITORGEN HERBICIDES (PATCH) | |
| Hexachloro 1,3 cyclopentadiene | 2518 | HEXACHLORO 1,3 CYCLOPENTADIENE | |
| Hexachlorobutadiene | 2543 | HEXACHLOROBUTADIENE | |
| Hexachloroethane | 1003 | HYDROCARBONS, HALOGENATED | 1003cpds |
| Hexamethylene diisocyanate | 5522 | ISOCYANATES | |
| Hexamethylene diisocyanate | 5521 | ISOCYANATES, MONOMERIC | |
| Hexanal | 2539 | ALDEHYDES, SCREENING | |
| Hexanal | 2549 | VOLATILE ORGANIC CPDS (Screening) | |
| n Hexane | 1500 | HYDROCARBONS, BP 36 126 C | 1500cpds |
| n Hexane | 2549 | VOLATILE ORGANIC CPDS (Screening) | |
| 2 Hexanone | 1300 | KETONES I | 1300cpds |
| Hydrazine | 3503 | HYDRAZINE | |
| Hydrogen bromide | 7903 | ACIDS, INORGANIC | 7903cpds |
| Hydrogen chloride | 7903 | ACIDS, INORGANIC | 7903cpds |
| Hydrogen cyanide | 6010 | HYDROGEN CYANIDE | |
| Hydrogen cyanide | 7904 | CYANIDES, AEROSOL & GAS | |
| Hydrogen flouride | 7903 | ACIDS, INORGANIC | 7903cpds |
| Hydrogen flouride | 7902 | FLUORIDES, AEROSOL & GAS | |
| Hydrogen flouride | 7906 | FLUORIDES by IC | |
| Hydrogen sulfide | 6013 | HYDROGEN SULFIDE | |
| Hydroquinone | 5004 | HYDROQUINONE |
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