Hazora · Library
UN/NA 1829 · Sulfur trioxide, stabilized
UN/NA 1829 · ERG 2024 · Guide 137
- UN/NA
- 1829
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1829 (Sulfur trioxide, stabilized) under Guide 137, titled “Substances - Water-Reactive - Corrosive”.
Material name
1829 on a placard, orange panel or shipping paper
It can stand for either of two ERG 2024 entries: “Sulfur trioxide, stabilized” and “Sulphur trioxide, stabilized”. Both use Guide 137, so the number alone is enough to find the guide. On a numbered orange panel, 1829 is the lower number (how to read an orange panel).
ERG 2024 markings for 1829
1829 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has an entry for it: “Sulfur trioxide, stabilized”. Hazora shows those distances in the app, not on this page. Its guide number 137 has no P.
Entries near 1829
By number (yellow pages): before 1829 come UN/NA 1826 Nitrating acid mixture, spent, with more than 50% nitric acid (Guide 157); UN/NA 1827 Stannic chloride, anhydrous (Guide 137) and UN/NA 1828 Sulfur chlorides (Guide 137); after it, UN/NA 1830 Sulfuric acid (Guide 137); UN/NA 1831 Sulfuric acid, fuming (Guide 137) and UN/NA 1832 Sulfuric acid, spent (Guide 137).
By name (blue pages): “Sulfur trioxide, stabilized” comes after Sulfur hexafluoride (UN/NA 1080, Guide 126) and Sulfur tetrafluoride (UN/NA 2418, Guide 125) and before Sulfur, molten (UN/NA 2448, Guide 133) and Sulfuric acid (UN/NA 1830, Guide 137).
By name (blue pages): “Sulphur trioxide, stabilized” comes after Sulphur hexafluoride (UN/NA 1080, Guide 126) and Sulphur tetrafluoride (UN/NA 2418, Guide 125) and before Sulphur, molten (UN/NA 2448, Guide 133) and Sulphuric acid (UN/NA 1830, Guide 137).
Other names starting with “Sulfur”: Sulfur (UN/NA 1350, Guide 133) and Sulfur dioxide (UN/NA 1079, Guide 125).
Guide 137 · Library
Guide 137 covers 32 UN/NA numbers. The 12 around 1829 in the guide’s number order: UN/NA 1808 Phosphorus tribromide; UN/NA 1809 Phosphorus trichloride; UN/NA 1810 Phosphorus oxychloride; UN/NA 1817 Pyrosulfuryl chloride; UN/NA 1827 Stannic chloride, anhydrous; UN/NA 1828 Sulfur chlorides; UN/NA 1830 Sulfuric acid; UN/NA 1831 Sulfuric acid, fuming; UN/NA 1832 Sulfuric acid, spent; UN/NA 1834 Sulfuryl chloride; UN/NA 1836 Thionyl chloride; UN/NA 1838 Titanium tetrachloride.
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.