Hazora · Library
UN/NA 1295 · Trichlorosilane
UN/NA 1295 · ERG 2024 · Guide 139
- UN/NA
- 1295
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1295 (Trichlorosilane) under Guide 139, titled “Substances - Water-Reactive (Emitting Flammable And Toxic Gases)”.
Material name
1295 on a placard, orange panel or shipping paper
It points to the ERG 2024 entry “Trichlorosilane” and to Guide 139. On a numbered orange panel, 1295 is the lower number (how to read an orange panel).
ERG 2024 markings for 1295
1295 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has an entry for it: “Trichlorosilane (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 139 has no P.
Entries near 1295
By number (yellow pages): before 1295 come UN/NA 1292 Ethyl silicate (Guide 129); UN/NA 1293 Tinctures, medicinal (Guide 127) and UN/NA 1294 Toluene (Guide 130); after it, UN/NA 1296 Triethylamine (Guide 132); UN/NA 1297 Trimethylamine, aqueous solution (Guide 132) and UN/NA 1298 Trimethylchlorosilane (Guide 155).
By name (blue pages): “Trichlorosilane” comes after Trichloroethylene (UN/NA 1710, Guide 160) and Trichloroisocyanuric acid, dry (UN/NA 2468, Guide 140) and before Tricresyl phosphate (UN/NA 2574, Guide 151) and Triethyl phosphite (UN/NA 2323, Guide 130).
Guide 139 · Library
Guide 139 covers 29 UN/NA numbers. The 12 around 1295 in the guide’s number order: UN/NA 1183 Ethyldichlorosilane; UN/NA 1242 Methyldichlorosilane; UN/NA 1339 Phosphorus heptasulfide, free from yellow and white phosphorus; UN/NA 1340 Phosphorus pentasulfide, free from yellow and white phosphorus; UN/NA 1341 Phosphorus sesquisulfide, free from yellow and white phosphorus; UN/NA 1343 Phosphorus trisulfide, free from yellow and white phosphorus; UN/NA 1360 Calcium phosphide; UN/NA 1390 Alkali metal amides; UN/NA 3130 Water-reactive liquid, poisonous, n.o.s.; UN/NA 3134 Water-reactive solid, poisonous, n.o.s.; UN/NA 3385 Poisonous by inhalation liquid, water-reactive, n.o.s. (Inhalation Hazard Zone A); UN/NA 3386 Poisonous by inhalation liquid, water-reactive, n.o.s. (Inhalation Hazard Zone B).
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.