ASTM-E2021:2009 Edition

$40.63

E2021-09 Standard Test Method for Hot-Surface Ignition Temperature of Dust Layers

Published By	Publication Date	Number of Pages
ASTM	2009	10

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Category: ASTM

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Description

ASTM E2021-09

Historical Standard: Standard Test Method for Hot-Surface Ignition Temperature of Dust Layers

ASTM E2021

Scope

1.1 This test method covers a laboratory procedure to determine the hot-surface ignition temperature of dust layers, that is, measuring the minimum temperature at which a dust layer will self-heat. The test consists of a dust layer heated on a hot plate. ^,

1.2 Data obtained from this test method provide a relative measure of the hot-surface ignition temperature of a dust layer.

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 hazard risk of materials, products, or assemblies under actual fire conditions. However, results of this test method 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 risk of a particular end use product.

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. Specific precautionary statements are given in Section 8.

Keywords

dust layer ignition; hot surface ignition; ignition temperature; Dust; Dust layers; Hot-surface testing/evaluation; Ignition

ICS Code

ICS Number Code 13.230 (Explosion protection)

DOI: 10.1520/E2021-09

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Limitations and Interferences Apparatus FIG. 1
3	Hazards Sampling and Test Specimens Calibration and Standardization FIG. 2
4	Procedure FIG. 3
5	Report FIG. 4
6	Precision and Bias Keywords X1. APPLICATION OF RESULTS X1.1 X2. HOT-SURFACE LAYER IGNITION TEMPERATURE APPARATUS X2.1 Construction of Heater Surface FIG. X2.1
7	FIG. X2.2
8	X2.2 Measurement of Temperature Distribution on Heated Metal Surface X2.3 Measuring Thermocouple X3. TYPICAL TEST DATA FOR DETERMINING THE HOT-SURFACE IGNITION TEMPERATURE OF A DUST LAYER X3.1 FIG. X2.3
9	REFERENCES TABLE X3.1 FIG. X3.1