Professional Services / Environmental Services
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1008-09, 10th Floor, Mercantile House, K.G. Marg, Connaught Place, Delhi, New Delhi
Tel: 01143565446
Sigma-HSE Process Safety Management provides competence development and training in all process safety areas. Learn more about our service! For any queries and questions contact our Business Development Team at +91 11 4356 5446 or write to us on safety-india@sigma-hse.com... read more
Tel: 01143565446
Sigma-HSE Process Safety Management provides competence development and training in all process safety areas. Learn more about our service! For any queries and questions contact our Business Development Team at +91 11 4356 5446 or write to us on safety-india@sigma-hse.com... read more
1008-09, 10th Floor, Mercantile House, K.G. Marg, Connaught Place, Delhi, New Delhi
Tel: 01143565446
The test is conducted primarily for the purposes of transportation. A powder strip is formed using a triangular cross sectioned mould onto a heat resistant non-porous plate. Using a butane flame one end of the strip is ignited and the initially the time taken to burn over a marked 200 mm length is recorded. If the time taken is equal to or less than 120 s then further trials are conducted over fresh powder strips and the burning rate over a length of 100 mm measured. If the time taken is equal to or less than 45 s (2.2 mm.s-1)... read more
Tel: 01143565446
The test is conducted primarily for the purposes of transportation. A powder strip is formed using a triangular cross sectioned mould onto a heat resistant non-porous plate. Using a butane flame one end of the strip is ignited and the initially the time taken to burn over a marked 200 mm length is recorded. If the time taken is equal to or less than 120 s then further trials are conducted over fresh powder strips and the burning rate over a length of 100 mm measured. If the time taken is equal to or less than 45 s (2.2 mm.s-1)... read more
1008-09, 10th Floor, Mercantile House, K.G. Marg, Connaught Place, Delhi, New Delhi
Tel: 01143565446
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. Using a conical funnel the mixtures are formed into a truncated conical pile covering a looped ignition wire resting on the low heat conducting plate. Power is applied to the ignition wire and is maintained for the duration of the test. The recorded burning time is taken from when the power is switched on to when the main reaction (e.g. flame incandescence or glowing... read more
Tel: 01143565446
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. Using a conical funnel the mixtures are formed into a truncated conical pile covering a looped ignition wire resting on the low heat conducting plate. Power is applied to the ignition wire and is maintained for the duration of the test. The recorded burning time is taken from when the power is switched on to when the main reaction (e.g. flame incandescence or glowing... read more
1st Floor Bishops Court 17a The Broadway, Hatfield
Tel: 0330 223 6960
As energy consultants we take an integrated approach to the areas of renewables and other low-carbon energy technologies. We can therefore help you through the entire planning process from energy and sustainability statements SAP calculations energy reports local policies air permeability tests and much more. Working with over 200 homeowners builders architects and large construction and engineering groups mean we have the breadth of knowledge in how to service a range of building projects from residential to commercial.... read more
Tel: 0330 223 6960
As energy consultants we take an integrated approach to the areas of renewables and other low-carbon energy technologies. We can therefore help you through the entire planning process from energy and sustainability statements SAP calculations energy reports local policies air permeability tests and much more. Working with over 200 homeowners builders architects and large construction and engineering groups mean we have the breadth of knowledge in how to service a range of building projects from residential to commercial.... read more
1008-09, 10th Floor, Mercantile House, K.G. Marg, Connaught Place, Delhi, New Delhi
Tel: 01143565446
The test is conducted to establish whether a liquid will allow electrical charge to migrate through it or not and therefore its ability to accumulate and retain charge. The liquid to be tested is slowly charged into a cylindrical measuring test cell comprising of an inner pole and a concentric outer electrode. A voltage is applied and current is measured from one electrode to the other. Using current value measured a liquid conductivity is calculated using the test cells constant determined from its geometry. The test allows for correct handling procedures to be established. A material with a low conductivity... read more
Tel: 01143565446
The test is conducted to establish whether a liquid will allow electrical charge to migrate through it or not and therefore its ability to accumulate and retain charge. The liquid to be tested is slowly charged into a cylindrical measuring test cell comprising of an inner pole and a concentric outer electrode. A voltage is applied and current is measured from one electrode to the other. Using current value measured a liquid conductivity is calculated using the test cells constant determined from its geometry. The test allows for correct handling procedures to be established. A material with a low conductivity... read more
1008-09, 10th Floor, Mercantile House, K.G. Marg, Connaught Place, Delhi, New Delhi
Tel: 01143565446
The Charge Relaxation Time compliments the Powder Volume Resistivity measurement as it indicates how long a material can retain its electrostatic charge. This is especially important with materials that are found to be insulating so as to minimise the risk from electrostatic spark discharges. Again the tests are performed at two relative humidity’s. This test data is useful for operations that involve powder movement or storage such as pneumatic conveying blending milling big bag storage etc.... read more
Tel: 01143565446
The Charge Relaxation Time compliments the Powder Volume Resistivity measurement as it indicates how long a material can retain its electrostatic charge. This is especially important with materials that are found to be insulating so as to minimise the risk from electrostatic spark discharges. Again the tests are performed at two relative humidity’s. This test data is useful for operations that involve powder movement or storage such as pneumatic conveying blending milling big bag storage etc.... read more
Subhas Nagar PO: Nilgunj Bazar, Barasat
Tel: +91 33 7112 2800
Edward Food Research and Analysis Centre (EFRAC) ISO/IEC 17025:2005 accreditation Laboratory from NABL one of the largest integrated food testing and research facilities in India. EFRAC's strength lies with 260+ Skilled Manpower 80+ Trained Scientists 32 Govt. Approved Signatories and having more than 1400+ Clients with most sophisticated equipment and modern technology EFRAC is touching new heights.... read more
Tel: +91 33 7112 2800
Edward Food Research and Analysis Centre (EFRAC) ISO/IEC 17025:2005 accreditation Laboratory from NABL one of the largest integrated food testing and research facilities in India. EFRAC's strength lies with 260+ Skilled Manpower 80+ Trained Scientists 32 Govt. Approved Signatories and having more than 1400+ Clients with most sophisticated equipment and modern technology EFRAC is touching new heights.... read more
1008-09, 10th Floor, Mercantile House, K.G. Marg, Connaught Place, Delhi, New Delhi
Tel: 01143565446
The test is performed at two controlled relative humidity conditions an upper humidity of 50% and a lower humidity of 15% in order to see the changes in resistivity as humidity falls. In pharmaceutical production many of the processes operate at low humidity. The resistivity value will determine whether a material is conductive static dissipative or insulating. With the latter case care must be taken during movement of the powder to minimise charge accumulation which could increase the risk from electrostatic spark discharges.... read more
Tel: 01143565446
The test is performed at two controlled relative humidity conditions an upper humidity of 50% and a lower humidity of 15% in order to see the changes in resistivity as humidity falls. In pharmaceutical production many of the processes operate at low humidity. The resistivity value will determine whether a material is conductive static dissipative or insulating. With the latter case care must be taken during movement of the powder to minimise charge accumulation which could increase the risk from electrostatic spark discharges.... read more
1008-09, 10th Floor, Mercantile House, K.G. Marg, Connaught Place, Delhi, New Delhi
Tel: 01143565446
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. Working through a range of powder concentrations the powder is dispersed into a 20L explosion vessel (sphere) using dry compressed air and nitrogen. Using partial pressures the oxygen content within the sphere at the time of ignition can be controlled. These suspended dust clouds are then exposed to a large 2 kJ chemical ignition source and any ignition and following explosion is monitored measured and recorded. The oxygen concentration... read more
Tel: 01143565446
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. Working through a range of powder concentrations the powder is dispersed into a 20L explosion vessel (sphere) using dry compressed air and nitrogen. Using partial pressures the oxygen content within the sphere at the time of ignition can be controlled. These suspended dust clouds are then exposed to a large 2 kJ chemical ignition source and any ignition and following explosion is monitored measured and recorded. The oxygen concentration... read more
1008-09, 10th Floor, Mercantile House, K.G. Marg, Connaught Place, Delhi, New Delhi
Tel: 01143565446
This test is conducted to determine the lower and upper concentration limits of flammability of chemicals having sufficient vapour pressure to form flammable mixtures in air at atmospheric pressure at a specific test temperature. The test can be conducted on vaporised liquids and gaseous materials. Refrigerant gases are tested to ASHRAE 34 using the method detailed within ASTM E681 with specific ignition criteria and air moisture content. LOWER FLAMMABLE LIMIT OR LOWER EXPLOSIVE LIMIT (LFL / LEL) Lower limit of flammability or lower flammable limit (LFL)—the minimum concentration of a combustible substance that is capable of propagating a flame in... read more
Tel: 01143565446
This test is conducted to determine the lower and upper concentration limits of flammability of chemicals having sufficient vapour pressure to form flammable mixtures in air at atmospheric pressure at a specific test temperature. The test can be conducted on vaporised liquids and gaseous materials. Refrigerant gases are tested to ASHRAE 34 using the method detailed within ASTM E681 with specific ignition criteria and air moisture content. LOWER FLAMMABLE LIMIT OR LOWER EXPLOSIVE LIMIT (LFL / LEL) Lower limit of flammability or lower flammable limit (LFL)—the minimum concentration of a combustible substance that is capable of propagating a flame in... read more
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