Chemicals
Density at temperature, ullage and surge math, drum and IBC palletising, UN packaging code decoding, ISO tank heel calculation, IMDG segregation matrix.
- IMDG · UNLive
Dangerous goods classifier
IMDG class, packing group, EmS, packaging instructions, and segregation group for the most-traded chemical UN numbers.
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- Density · TempLive
Density at temperature calculator
Thermal expansion density correction with 8 chemical-trade presets (water, NaOH 50%, sulphuric 98%, HCl 32%, methanol, ethanol, citric 50%, diesel). Optional volume input gives mass at target temperature.
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- Drums · IBCLive
Pallets per container calculator for drums and IBCs
Container fit math for drums, IBCs, Euro/US pallets, FIBC big bags. 5 cargo presets x 4 container presets, returns count, binding constraint, total mass, floor utilisation.
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- UN packagingLive
UN packaging code decoder
UN packaging mark decoder: kind (drum/box/bag/IBC) + material (steel/plastic/fibreboard/paper) + category + X/Y/Z PG mark + density limit. Plus a 10-code common-codes reference and full kind/material tables.
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- Heel · IMDG 4.2Live
ISO tank heel calculation
Minimum residue (heel) by tank build and last cargo, with the cleaning trigger when next cargo is incompatible.
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- Ullage · alphaLive
Liquid expansion and ullage calculator
Tank load at different ambient temperatures, with the IMDG 4.2.1.9.5 reference temperature applied.
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- AICIS · 317 chemicalsProLive
AICIS chemical inventory checker
Search the Australian Industrial Chemicals Introduction Scheme (AICIS) Inventory by CAS number, chemical name, synonym, or common use. 317 industrial chemicals indexed across acids, bases, solvents, monomers, polymers, surfactants, intermediates, pigments and pharmaceutical actives. Each row links to the AICIS Inventory primary source.
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- Drums · IBC totesLive
Drum and tote weight calculator
Net and gross weight of a 55 gallon drum or a 275 or 330 gallon IBC tote from the product specific gravity, with editable tare weights from Schütz datasheets.
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- Gallons · Pounds · SGLive
Gallons to pounds calculator for any liquid
US gallons or liters to pounds or kilograms and back, by specific gravity from SDS Section 9. Shows lb per gallon, with the gallon and pound taken from NIST Handbook 44.
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- SG · Baumé · API · BrixLive
Specific gravity converter: lb/gal, Baumé, API, and Brix
SG to and from lb/gal, kg/m³, g/mL, degrees Baumé on the heavy and light scales from NBS Circular 59, API gravity, and approximate Brix from the NBS sucrose table.
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- ppm · mg/L · percentLive
Concentration converter: ppm to mg/L, ppb, and percent
ppm, ppb, percent w/w, mg/L, g/L, and percent w/v, with the solution SG carried through so ppm to mg/L stays right for acids, caustic, and brines.
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- C1V1 = C2V2 · RatioLive
Dilution calculator: C1V1 = C2V2 and 1:X ratios
Solve any one of C1, V1, C2, V2, or split a batch by a label ratio read either way, in gallons and fluid ounces or liters and mL.
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- Tons · Gallons · SGLive
Tons to gallons calculator for liquids
Short tons, metric tons, and long tons to US gallons or liters and back, by specific gravity, with the ton definitions from NIST Handbook 44.
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- cP · cSt · SUSLive
Viscosity converter: cP to cSt and SUS
Centipoise, mPa·s, Pa·s, centistokes, mm²/s, and Saybolt Universal Seconds, using density for cP to cSt and the ASTM D2161 equation for SUS.
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- Mesh · Micron · ASTM E11Live
Mesh to micron converter: ASTM E11 sieve sizes
Every numbered US standard sieve in ASTM E11, No. 3½ to No. 635, in µm, mm, and inches, plus the sieves either side of any particle size.
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- Molarity · w/wLive
Molarity calculator from grams or percent w/w
Molarity from grams, volume and molar mass, grams to weigh for a target, and percent w/w stock acids to molarity using density, with a dilution volume.
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- Molar mass · IUPACLive
Molar mass calculator with IUPAC atomic weights
Parses formulas like Ca(OH)2, K4[Fe(CN)6] and CuSO4·5H2O against the IUPAC 2024 abridged standard atomic weights, with element mass percent and grams to moles.
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- Blending · AlligationLive
Blending calculator for mixing two concentrations
Alligation method for mixing two strengths, or a concentrate with water, to a target percent by weight or by volume, with the amount of each stream.
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- Bulk density · FillLive
Bulk density calculator for bags and containers
Bulk density in lb/ft3, kg/m3 and g/mL from a data sheet or a weighed sample, and how many lb or kg fit in a bag, big bag or container volume.
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- Units · NIST SP 811Live
Plant unit converter: psi to bar, gpm, °F to °C
Pressure in psi, bar, kPa and MPa, flow in US gpm, m3/h and L/min, and temperature in °F, °C and K on one page, using NIST SP 811 factors.
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- Tank volume · DipLive
Tank volume calculator with gallons per inch
Vertical and horizontal cylinder tank volume and partial fill from liquid height, in US gallons or liters, with ullage, gallons per inch and a gauge table.
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- Acid · Base · StoichiometryLive
Neutralization calculator: how much base neutralizes an acid
Moles and mass of NaOH, lime, soda ash, or acid needed to neutralize a tank, from mass or volume with % w/w, SG, or molarity, by reaction stoichiometry.
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- MKT · USP <1079> · °C or °FLive
Mean kinetic temperature calculator (MKT)
Paste temperature logger readings in °C or °F and get the MKT by the USP formula with ΔH/R of 10,000 K, next to the plain average and your limit.
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- GHS Rev. 10 · Pictograms · H and PLive
GHS label maker with pictograms and H and P statements
Build a printable GHS chemical label with the nine pictograms, the signal word, and hazard and precautionary statements in the UN GHS Rev. 10 wording.
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- NFPA 704 · Fire diamond · SVGLive
NFPA 704 diamond maker (fire diamond generator)
Pick health, flammability, and instability ratings from 0 to 4 and a special hazard, read what each level means, and download the fire diamond as SVG or PNG.
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- NOAA CAMEO reactive groupsLive
Chemical storage compatibility chart and checker
Add two or more chemicals by name or CAS number, or pick their reactive groups, to see which pairs NOAA CAMEO Chemicals rates incompatible or caution, with the hazard and the gases a mix can give off.
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- 29 CFR 1910.1200 · 49 CFR 173.120Live
Flammable liquid classifier by flash point
Flash point and initial boiling point give the OSHA and GHS flammable liquid category 1 to 4, the DOT Class 3 packing group or combustible liquid status, and the NFPA 30 class IA to IIIB, in °F and °C.
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- ASTM D1209 · D1544 · D156Live
Color scale converter (APHA, Pt-Co, Hazen, Gardner, Saybolt)
APHA, Pt-Co and Hazen are one scale. The tool places a COA color reading against the published APHA 500 to Gardner anchor, says when Saybolt cannot be converted, and checks the reading against your spec limit.
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Sourzi shows what official files say. It is not customs or legal advice. For a binding answer, ask a licensed customs broker, a CBP ruling or an Australian Border Force Tariff Advice.
File dates and links are on Data sources.