| Glue P.V.A. | A | A | A | B | A | A | B | A | B | A | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Glycerine | A | A | A | A | A | A | A | B | A | A | A |
| Glycolic Acid | A | A | A | A | A/70 | A/70 | |||||
| Glycols | A | A | A | A | A | A | B | B | B | A | A |
| Gold Monocyanide | A | A | A | A | D | A | |||||
| Grape Juice | A | A | A | A | B | D | A | A | |||
| Grapefruit Oil | D | D | A | D | A | ||||||
| Grease | B | D | A | D | A | A |
A | A | A | ||
| Green Sulfate Liqour | A | A | A |
A | A | A | A | ||||
| Halowax Oil | D | D | D | D | A | A | |||||
| Heptanal | A | D | A | A | A | A | A | ||||
| Heptane | C | B | A | A | A | A | A | A | C/170 | A | |
| Hexane | C | B | A | D | A | A | A | A | A | C/170 | A |
| N-Hexaldehyde | D | A | D | B | C | A | A | A | A | ||
| Hexalin (Cyclohexanol) | A | B | C | A | A | ||||||
| N-Hexene-1 | D | B | A | D | A | A | A | ||||
| Hexyl Alcohol (1-Hexanol) | B | A | C | A | A | A | A | A | |||
| Hexylene Glycol (Brake Fluid) | A | A | C | A | A | A | A | A | |||
| Honey | A | A | A | A | A | A | A | A | |||
| Hydraulic Oils (Petroleum) | D | B |
A | C | A | A | A | A | A | D | |
| Hydraulic Oils (Synthetic) | D | C | A | A | A | A | D | ||||
| Hydrazine | A | B | B | A | A | A | C | A | A/70 | B/120 | |
| Hydrobromic Acid | A | D | D | A | A | A | D | D | D | B | A |
| Hydrochloric Acid 20% | A | D | C | A | A | A | D | D | D |
A | A |
| Hydrochloric Acid 37%(Hot) | A | D | D | C | A | A | D | D | D | A | |
| Hydrochloric Acid 37%(Cold) | A | D | C | B | A | A | D | D | D | A | A |
| Hydrocyanic Acid | A | B | C | B | A | A | A | A | A | A | |
| Hydrogen Flouride-Anhydrous | C | D | C | A | A | D | D | A | |||
| Hydroflouric Acid (20%) | A | C | D | C | A | A | D | D | D | A | A |
| Hydroflouric Acid (50%) | A | C | D | A | A | A | D | D | D | B/72 | A |
| Hydroflouric Acid (75%) | D | D | C | A | A | D | D | D | B/72 | A | |
| Hydroflouric Acid (Conc.)(Hot) | D | D | B | A | D | D | D | D | A | ||
| Hydroflouric Acid(Conc.)(Cold) | B | B | D | A | A | D | D | D | D | A | |
| Hydrofluosilicic Acid (20%) | A | B | B | B | A | A | D | D | D | A | A |


