Sludge, acid
Sludge (possibly from Middle English slutch 'mud, mire', or some dialect related to slush) is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, wastewater treatment or on-site sanitation systems. It can be produced as a settled suspension obtained from conventional drinking water treatment, as sewage sludge from wastewater treatment processes or as fecal sludge from pit latrines and septic tanks. The term is also sometimes used as a generic term for solids separated from suspension in a liquid; this soupy material usually contains significant quantities of interstitial water (between the solid particles). Sludge can consist of a variety of particles, such as animal manure Wikipedia
Hazardous Materials Table
Source:
49 CFR §172 (15 June 2026)
(3) Hazard class 8 Corrosive liquids |
UN 1906 |
II |
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×Note:Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs. | A3 | For combination packagings, if glass inner packagings (including ampoules) are used, they must be packed with absorbent material in tightly closed rigid and leakproof receptacles before packing in outer packagings. Browse special provision A3 |
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| A7 | |
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| B2 | |
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| IB2 | <sub>Authorized IBCs:</sub> Metal (31A, 31B and 31N); Rigid plastics (31H1 and 31H2); Composite (31HZ1). <sub>Additional Requirement:</sub> Only liquids with a vapor pressure less than or equal to 110 kPa at 50 °C (1.1 bar at 122 °F), or 130 kPa at 55 °C (1.3 bar at 131 °F) are authorized. Browse special provision IB2 |
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| N34 | Aluminum construction materials are not authorized for any part of a packaging which is normally in contact with the hazardous material. Browse special provision N34 |
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| T8 | | Minimum test pressure (bar) | 4 |
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| Minimum shell thickness | § 178.274(d)(2) |
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| Pressure-relief requirements | Normal |
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| Bottom opening requirements | Prohibited |
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Browse special provision T8 |
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| TP2 | a. The maximum degree of filling must not exceed the degree of filling determined by the following:  Where: t<sub>r</sub> is the maximum mean bulk temperature during transport, t<sub>f</sub> is the temperature in degrees celsius of the liquid during filling, and α is the mean coefficient of cubical expansion of the liquid between the mean temperature of the liquid during filling (t<sub>f</sub>) and the maximum mean bulk temperature during transportation (t<sub>r</sub>) both in degrees celsius. b. For liquids transported under ambient conditions α may be calculated using the formula:  Where: d<sub>15</sub> and d<sub>50</sub> are the densities (in units of mass per unit volume) of the liquid at 15 °C (59 °F) and 50 °C (122 °F), respectively. Browse special provision TP2 |
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| TP28 | A portable tank having a minimum test pressure of 2.65 bar (265 kPa) may be used provided the calculated test pressure is 2.65 bar or less based on the MAWP of the hazardous material, as defined in § 178.275 of this subchapter, where the test pressure is 1.5 times the MAWP. Browse special provision TP28 |
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| (9A) Passenger aircraft/rail | Forbidden |
| (9B) Cargo aircraft only | 30 L |
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| (10A) Location | C Stowage category “C” means the material must be stowed “on deck only” on a cargo vessel or on a passenger vessel. Source: 49 CFR §172.101(k) |
| (10B) Other | |
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Segregation chart for load, transport, and storage
This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.
Hinweis: In der Kompatibilitätstabelle sind Stoffe der Gefahrenklasse 8 nur dann zu berücksichtigen, wenn der Stoff flüssig ist. Derzeit kann
HazMat Tool nicht prüfen, ob der Stoff flüssig ist. Dies wird daher hier angenommen. Siehe
PHMSA Interpretation #09-0252.
Full segregation table for class 8 · Browse UN entries for this class
![Prohibited]() |
Must not be loaded, transported, or stored together in the same vehicle or facility. |
![Permitted]() |
May be loaded, transported, or stored together. |
![Restricted]() |
May be loaded, transported, or stored together only with restrictions. |