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Standard Practice for Determining Limits of Flammability of Chemicals at Elevated Temperature and Pressure
STANDARD published on 1.8.2011
Designation standards: ASTM E918-83(2011)
Note: WITHDRAWN
Publication date standards: 1.8.2011
SKU: NS-48471
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Ignitability and burning behaviour of materials and productsProducts of the chemical industry in general
Keywords:
Chemicals (fire/flammability testing), Gaseous fuels, Flammability--chemicals, Gases, Heating tests--chemicals/materials, Ignition--chemicals, Joint seals/sealants, Pressure testing--chemicals, Temperature tests--chemicals, Vapor phase analysis/processing--samples, ICS Number Code 13.220.40 (Ignitability and burning behaviour of materials and products), 71.100.01 (Products of the chemical industry in general)
Significance and Use | ||||
Knowledge of flammable limits at elevated temperatures and pressures is needed for safe and economical operation of some chemical processes. This information may be needed in order to start up a reactor without passing through a flammable range, to operate the reactor safely and economically, or to store or ship the product safely. Limits of flammability data obtained in relatively clean vessels must be carefully interpreted and may not always be applicable to industrial conditions. Surface effects due to carbon deposits and other materials can significantly affect limits of flammability, especially in the fuel-rich region. Refer to Bulletin 503 and Bulletin 627. |
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1. Scope | ||||
1.1 This practice covers the determination of the lower and upper concentration limits of flammability of combustible vapor-oxidant mixtures at temperatures up to 200°C and initial pressures up to as much as 1.38 MPa (200 psia). This practice is limited to mixtures which would have explosion pressures less than 13.79 MPa (2000 psia). 1.2 This practice should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use. 1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||
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