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Auto-Ignition Temperature |SigmaHSE

The autoignition temperature or kindling point of a substance is the lowest temperature at which it spontaneously ignites in normal atmosphere without an external source of ignition, such as a flame or spark. 

https://sigma-hse.com/thermal-stability-and-gas-and-vapour-testing/auto-ignition-temperature

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Burning Behaviour | Sigma-HSE

Burning Behaviour is conducted to assess the behaviour (severity) of combustion propagation through a material deposit on being ignited by an external ignition source. https://sigma-hse.com/dust-and-powder/burning-behaviour

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The air over layer test is conducted to establish the onset temperature of exothermic activity of thin layers of material when exposed to elevated atmospheric temperatures. https://sigma-hse.com/thermal-stability-and-gas-and-vapour-testing/air-over-layer

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Burning Behaviour is conducted to assess the behaviour (severity) of combustion propagation through a material deposit on being ignited by an external ignition source.The test is conducted to assess the behaviour (severity) of combustion propagation through a material deposit on being ignited by an external ignition source.

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The limiting oxygen concentration test is conducted to determine the minimum quantity of oxygen, within an atmosphere, that will enable a powder dispersed in air, as a dust cloud to ignite. https://sigma-hse.com/dust-and-powder/limited-oxygen-concentration-loc

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MINIMUM EXPLOSIVE CONCENTRATION (MEC)| Sigma-HSE

The Minimum Explosive Oxygen Concentration in the Airborne Dust of Fossil Fuels This test is conducted to determine the minimum quantity of powder dispersed in air, as a dust cloud that will ignite. https://sigma-hse.com/dust-and-powder/minimum-explosive-concentration-mec

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Dust explosions are a serious hazard in process industries.Explosion events can cause loss of land, labor, capital and in the very worst cases,life. https://sigma-hse.com/dust-and-powder/explosion-severity-pmax-kst

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Additional Tests Available at our Environmental Laboratory (ELab) UK.Our environmental laboratory, ELAB, specialises in the testing for contamination in soil, water and leachate samples. https://sigma-hse.com/additional-tests-available/elab

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Our training courses are based on years of experience from our Senior Engineers and are delivered by speakers. https://sigma-hse.com/training

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MINIMUM IGNITION ENERGY (MIE) | Sigma-HSE | Flammability

The MInimum Ignition Energy (MIE) test is conducted to determine the lowest spark energy that will ignite a powder when dispersed in air, as a dust cloud.An inductive generated spark is selected for mechanical (friction, impact and grinding) or electrical (wire short, electrical contact) spark incendivity analysis.

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Air Over Layer | Sigma-HSE

The air over layer test is conducted to establish the onset temperature of exothermic activity of thin layers of material when exposed to elevated atmospheric temperatures. https://sigma-hse.com/thermal-stability-and-gas-and-vapour-testing/air-over-layer

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MINIMUM IGNITION ENERGY (MIE) | Sigma-HSE | Flammability

The MInimum Ignition Energy (MIE) test is conducted to determine the lowest spark energy that will ignite a powder when dispersed in air, as a dust cloud.An inductive generated spark is selected for mechanical (friction, impact and grinding) or electrical (wire short, electrical contact) spark incendivity analysis.

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The aerated bulk powder diffusion cell test is conducted to establish the onset temperature of exothermic activity of a material when exposed to elevated atmospheric temperatures. https://sigma-hse.com/thermal-stability-and-gas-and-vapour-testing/aerated-bulk-powder-diffusion-cell

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DSEAR Assessment Sigma-HSE Flammability

We specialise in DSEAR Assessment Experts in generating clear and precise reports with the most suitable Basis of Safety for each relevant operation. 

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Charge Relaxation Time for Powders |Sigma-HSE| electrostatic

The Charge Relaxation Time compliments the Powder Volume Resistivity measurement as it indicates how long a material can retain its electrostatic charge. The Charge Relaxation Time compliments the Powder Volume Resistivity measurement as it indicates how long a material can retain its electrostatic charge.

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The Minimum Ignition Temperature (MIT) test is conducted to determine the lowest temperature at which a hot surface will ignite a powder when dispersed in air, as a dust cloud. https://sigma-hse.com/dust-and-powder/minimum-ignition-temperature-mit

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The test is conducted primarily for the purposes of transportation. Mixtures of a reference oxidiser (potassium bromate) / cellulose (fuel) and mixtures of the substance and cellulose (fuel) to be tested are prepared in specified ratios. https://sigma-hse.com/transportation-classification-testing-un-adr-clp/oxidising-solids