Instrumentation Symbols (P&ID)
ISA-5.1 instrument bubble shapes, line types, and tag letter meanings for reading and marking up P&IDs.
Open Instrumentation Symbols →— Chemical Reference Material
Solution Concentration Reference
Concentration unit definitions, common concentrated reagent assay/density/molarity, and a pH quick reference.
Open Solution Concentration Reference →Fluid & Steam Properties
Abridged saturated steam table, water properties vs. temperature, and common process fluid density/viscosity.
Open Fluid & Steam Properties →Chemical Properties
Molar mass, Antoine vapor-pressure constants, normal boiling point, enthalpy of formation, critical constants, and pKa and pKw tables.
Open Chemical Properties →Flammability & Exposure Limits
Flammability limits, flash points, NIOSH RELs and IDLH values, and OSHA PELs for common process chemicals in one filterable table.
Open Flammability & Exposure Limits →Heat Transfer Coefficients
Typical overall U and convection h ranges, fouling factors, thermal conductivity and emissivity, in SI and US units.
Open Heat Transfer Coefficients →Constants & Gas Properties
Exact SI constants, the gas constant R in ten unit systems, ideal-gas properties, critical constants and atomic weights.
Open Constants & Gas Properties →Elastomer Chemical Compatibility
Parker O-Ring Handbook ratings for 2,000+ fluids against 18 seal elastomers, with the recommended compound and temperature ranges.
Open Elastomer Chemical Compatibility →