ASTM D3466-06(2023) PDF
Standard Test Method for Ignition Temperature of Granular Activated Carbon
Standard Test Method for Ignition Temperature of Granular Activated Carbon
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 1 декабря 2023 г.
- Издание:
- D3466
- ICS:
- 75.160.10
SIGNIFICANCE AND USE 5.1 Activated carbons used in gas-phase adsorption may be subjected to heating, either from heat applied externally to the carbon bed, or heat generated by radioactive4 contaminants, or by the adsorption process itself. If the application of heat is sudden, or if no ample means to conduct the heat from the carbon bed exists, the carbon bed may ignite. This test method provides a controlled laboratory test to determine the temperatures at which such ignition occurs. As stated in 1.2, this does not necessarily give the temperature at which ignition will occur under a specific bed operating condition. This test method does, however, allow some ranking of carbons with regard to ignition temperature, and is a useful quality control method for unused carbons. SCOPE 1.1 This test method covers the determination of reference ignition temperature of granular activated carbon in flowing air. This test method provides a basis for comparing the ignition characteristics of different carbons, or the change in ignition characteristics of the same carbon after a period of service. 1.2 The ignition temperature, as determined by this test method, cannot be interpreted as the probable ignition temperature of the same carbon under the operating conditions of a specific application unless those conditions are essentially the same as those in this test method.2 If it is desired to determine the ignition temperature of the carbon under a specific set of operating conditions, the test may be modified to simulate such conditions, taking into consideration the following variables: (1) air flow rate; (2) moisture content of the carbon; (3) bed depth; (4) relative humidity of the air stream; (5) heating rate; (6) contaminants (for example, hydrocarbons, etc.) in the air stream; and (7) contaminants that may have been adsorbed by the carbon under prior service conditions. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Abstract
Overview
ASTM D3466-06(2023): Standard Test Method for Ignition Temperature of Granular Activated Carbon establishes a laboratory protocol for determining the reference ignition temperature of granular activated carbon in a flowing air environment. Developed by ASTM International, this standard is essential for assessing safety and quality in applications where activated carbon is used, particularly for gas-phase adsorption processes. Ignition temperature is a critical parameter in managing fire risks associated with the use of granular activated carbon, which may be subject to internal or external heat sources.
Key Topics
- Ignition Temperature Determination Provides a controlled method to identify the temperature at which a sample of granular activated carbon ignites in a laboratory setting.
- Comparative Evaluation Facilitates comparing ignition characteristics between different types of activated carbon, or evaluating changes in a single carbon sample after use.
- Influencing Variables
Highlights operational factors that can affect the ignition temperature, including:
- Air flow rate
- Carbon moisture content
- Bed depth
- Relative humidity
- Heating rate
- Presence of contaminants in the air or adsorbed on the carbon
- Quality Control Useful as a reproducible quality control tool for unused activated carbons, providing data to rank materials by ignition susceptibility.
Applications
ASTM D3466-06(2023) is valuable for:
- Process Safety Management Industries using granular activated carbon in air purification, chemical processing, or hazardous material management can assess baseline ignition points and implement appropriate safety procedures.
- Product Quality Verification Manufacturers and suppliers use this standard as part of quality assurance protocols to ensure product consistency and compliance with safety guidelines.
- Comparative Research and Development Enables researchers to rank and select activated carbons for specific gas-phase adsorption applications, based on their ignition profiles.
- Regulatory and Environmental Compliance Assists end-users in conforming with safety, environmental, and facility management standards related to combustibility and handling of activated carbon.
Important Considerations: The test method provides reference data under controlled laboratory conditions. The actual ignition temperature in operational use may differ unless real-world conditions closely match those in the test. Users may adapt the test protocol to simulate specific conditions, considering key operational variables mentioned above.
Related Standards
- ASTM D2652: Terminology Relating to Activated Carbon
- ASTM D2854: Test Method for Apparent Density of Activated Carbon
- ASTM D3195/D3195M: Practice for Rotameter Calibration
- ASTM E11: Specification for Woven Wire Test Sieve Cloth and Test Sieves
- ASTM E220: Test Method for Calibration of Thermocouples by Comparison Techniques
- ASTM E300: Practice for Sampling Industrial Chemicals
Practical Value
Adopting ASTM D3466-06(2023) ensures reliable and repeatable determination of ignition temperature for granular activated carbon, supporting workplace safety, material selection, and regulatory compliance. This standard is particularly relevant for industries focused on environmental safety, chemical processing, air filtration, and any application where the thermal stability of activated carbon is a critical concern.
Keywords: ASTM D3466, ignition temperature, granular activated carbon, gas-phase adsorption, safety, quality control, laboratory testing, industrial standards
Технические детали
- Технический комитет
- D28 - Activated Carbon
- SKU
- ASTM D3466-06(2023)
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