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ASTM-E1226:2009 Edition

ASTM-E1226:2009 Edition

$44.96

E1226-09 Standard Test Method for Pressure and Rate of Pressure Rise for Combustible Dusts

Published By Publication Date Number of Pages
ASTM 2009 11
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1.1 This test method is designed to determine the deflagration parameters of a combustible dust-air mixture within a near-spherical closed vessel of 20 L or greater volume. The parameters measured are the maximum pressure and the maximum rate of pressure rise.

1.2 Data obtained from this test method provide a relative measure of deflagration characteristics. The data have also been shown to be applicable to the design of protective measures, such as deflagration venting (1).

1.3 This test method should be used to measure and describe the properties of materials 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 that takes into account all of the factors that are pertinent to an assessment of the fire hazard of a particular end use.

Note 1Historically, the evaluation of the deflagration parameters of maximum pressure and maximum rate of pressure rise has been done using a 1.2-L Hartmann Apparatus. Test Method E789 , which describes this method, has been withdrawn. The use of data obtained from the test method in the design of explosion protection systems is not recommended.

1.4 This standard does not purport to address all of the safety concerns, if any, 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.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
2 Terminology
Summary of Test Method
FIG. 1
FIG. 2
3 Significance and Use
Interferences
Apparatus
Safety Precautions
Sampling, Test Specimens, and Test Units
4 Calibration and Standardization
Procedure
5 Calculation
Report
Precision and Bias
Keywords
FIG. 3
6 X1. SIWEK 20-L APPARATUS
X1.1
X1.2
X1.3
X1.4
X1.5
X1.6
FIG. X1.1
FIG. X1.2
7 FIG. X1.3
FIG. X1.4
8 X1.7
X1.8
X1.9
FIG. X1.5
9 X1.10
X1.11
X1.12
TABLE X1.1
FIG. X1.6
10 TABLE X1.2
FIG. X1.7
TABLE X1.3
11 X2. OTHER DUST EXPLOSIBILITY TEST CHAMBERS HAVING A VOLUME OF AT LEAST 20 L
X2.1
X2.2
REFERENCES

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