Hazora · Library
UN/NA 1298 · Trimethylchlorosilane
UN/NA 1298 · ERG 2024 · Guide 155
- UN/NA
- 1298
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1298 (Trimethylchlorosilane) under Guide 155, titled “Substances - Toxic and/or Corrosive (Flammable/Water-Sensitive)”.
Material name
1298 on a placard, orange panel or shipping paper
It points to the ERG 2024 entry “Trimethylchlorosilane” and to Guide 155. On a numbered orange panel, 1298 is the lower number (how to read an orange panel).
ERG 2024 markings for 1298
1298 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has an entry for it: “Trimethylchlorosilane (when spilled in water)”. Hazora shows those distances in the app, not on this page. “When spilled in water” means the material produces large amounts of toxic inhalation hazard (TIH) gases when spilled in water. Table 2 (Water-Reactive Materials Which Produce Toxic Gases) lists the gas produced: HCl (hydrogen chloride). Its guide number 155 has no P.
Entries near 1298
By number (yellow pages): before 1298 come UN/NA 1295 Trichlorosilane (Guide 139); UN/NA 1296 Triethylamine (Guide 132) and UN/NA 1297 Trimethylamine, aqueous solution (Guide 132); after it, UN/NA 1299 Turpentine (Guide 128); UN/NA 1300 Turpentine substitute (Guide 128) and UN/NA 1301 Vinyl acetate, stabilized (Guide 129P).
By name (blue pages): “Trimethylchlorosilane” comes after Trimethylamine, anhydrous (UN/NA 1083, Guide 118) and Trimethylamine, aqueous solution (UN/NA 1297, Guide 132) and before Trimethylcyclohexylamine (UN/NA 2326, Guide 153) and Trimethylhexamethylene diisocyanate (UN/NA 2328, Guide 156).
Guide 155 · Library
Guide 155 covers 44 UN/NA numbers. The 12 around 1298 in the guide’s number order: UN/NA 1162 Dimethyldichlorosilane; UN/NA 1181 Ethyl chloroacetate; UN/NA 1182 Ethyl chloroformate; UN/NA 1196 Ethyltrichlorosilane; UN/NA 1238 Methyl chloroformate; UN/NA 1250 Methyltrichlorosilane; UN/NA 1305 Vinyltrichlorosilane; UN/NA 1603 Ethyl bromoacetate; UN/NA 1717 Acetyl chloride; UN/NA 1722 Allyl chlorocarbonate; UN/NA 1724 Allyltrichlorosilane, stabilized; UN/NA 1747 Butyltrichlorosilane.
Source: ERG 2024 (U.S. DOT PHMSA, Transport Canada, SICT Mexico), for the initial phase of a transportation incident only. Hazora is not an official ERG publication and is not affiliated with or endorsed by these or any other government agencies.