Hazora · Library
UN/NA 1831 · Sulfuric acid, fuming
UN/NA 1831 · ERG 2024 · Guide 137
- UN/NA
- 1831
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1831 (Sulfuric acid, fuming) under Guide 137, titled “Substances - Water-Reactive - Corrosive”.
Material name
1831 on a placard, orange panel or shipping paper
It can stand for either of two ERG 2024 entries: “Sulfuric acid, fuming” and “Sulphuric acid, fuming”. Both use Guide 137, so the number alone is enough to find the guide. On a numbered orange panel, 1831 is the lower number (how to read an orange panel).
ERG 2024 markings for 1831
1831 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has an entry for it: “Sulfuric acid, fuming”. Hazora shows those distances in the app, not on this page. Its guide number 137 has no P.
Entries near 1831
By number (yellow pages): before 1831 come UN/NA 1828 Sulfur chlorides (Guide 137); UN/NA 1829 Sulfur trioxide, stabilized (Guide 137) and UN/NA 1830 Sulfuric acid (Guide 137); after it, UN/NA 1832 Sulfuric acid, spent (Guide 137); UN/NA 1833 Sulfurous acid (Guide 154) and UN/NA 1834 Sulfuryl chloride (Guide 137).
By name (blue pages): “Sulfuric acid, fuming” comes after Sulfuric acid (UN/NA 1830, Guide 137) and Sulfuric acid and hydrofluoric acid mixture (UN/NA 1786, Guide 157) and before Sulfuric acid, spent (UN/NA 1832, Guide 137) and Sulfuric acid, with more than 51% acid (UN/NA 1830, Guide 137).
By name (blue pages): “Sulphuric acid, fuming” comes after Sulphuric acid (UN/NA 1830, Guide 137) and Sulphuric acid and hydrofluoric acid mixture (UN/NA 1786, Guide 157) and before Sulphuric acid, spent (UN/NA 1832, Guide 137) and Sulphuric acid, with more than 51% acid (UN/NA 1830, Guide 137).
Other names starting with “Sulfuric”: Sulfuric acid, with not more than 51% acid (UN/NA 2796, Guide 157).
Guide 137 · Library
Guide 137 covers 32 UN/NA numbers. The 12 around 1831 in the guide’s number order: UN/NA 1810 Phosphorus oxychloride; UN/NA 1817 Pyrosulfuryl chloride; UN/NA 1827 Stannic chloride, anhydrous; UN/NA 1828 Sulfur chlorides; UN/NA 1829 Sulfur trioxide, stabilized; UN/NA 1830 Sulfuric acid; UN/NA 1832 Sulfuric acid, spent; UN/NA 1834 Sulfuryl chloride; UN/NA 1836 Thionyl chloride; UN/NA 1838 Titanium tetrachloride; UN/NA 1939 Phosphorus oxybromide, solid; UN/NA 2443 Vanadium oxytrichloride.
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.