ASTM C1274 Determination of ceramic surface area through physical adsorption
The standard ASTM C1274 determines the ceramic surface area through physical adsorption. The process involves IUPAC-based standards of Brunauer, Emmett, and Teller (BET) standards. ASTM C1274 outlines techniques that are used in commercial adsorption and desorption instruments. The results are reported in SI units.
The ASTM C1274 standard is suitable for measuring surface areas of enhanced ceramic powders up to 0.05 m2 (if krypton at 77.35 K is used as an adsorbent in combination with nitrogen). Both – suppliers and customers – of advanced ceramics can use this standard method for material improvement and comparison, product characterization, design data, quality control, and engineering/manufacturing specifications.
In ASTM C1274, frequently used absorbent materials are used. The argon adsorptive material has a temperature of 77.35 K with 0.138 nm2 area, Nitrogen at 77.35 K with the cross-sectional area of 0.162 nm2, and Krypton at 77.35 K with 0.202 nm2 of the cross-sectional area. The manometric apparatus is used in volumetric tests. The outgassing techniques and temperatures must not cause any change in the powder sample’s constitution, form, or surface morphology. Before determining an adsorption equilibrium, start removing any physically adsorbed contaminants from the specimen surface. Many ceramic materials may be appropriately outgassed within a few hours at reasonably extreme temperatures (200 to 300 °C). Different ceramic materials have different outgassing temperatures. Quartz at 200 °C attain outgassing condition in 3 minutes, silica takes 3 minutes at 200 °C, and alumina takes 3 minutes at 300 °C.
Specimen Size :
The ASTM C1274 test method evaluates ceramic materials, primarily silicon compounds like silicon nitride, silicon carbide, kaolin, etc.
The ASTM C1274 standards are based on the BET (Brunauer, Emmett, and Teller) method.
The monolayer capacity is calculated by: Nm=Vm/Mv=Wm/Mad
Where Nm = monolayer capacity.
Wm = monolayer capacity of the gas.
Mv = molar volume.
Mad = molar mass of adsorbate.
Vm = monolayer capacity of the sample.
The standard ASTM C1274 determines the ceramic surface area through physical adsorption.
ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 test is a standard test method for the analysis of sulfochromate etch solutions used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
ASTM G65 measures the resistance of metallic materials to abrasion using the dry sand/rubber wheel apparatus. The quality, durability, and toughness of the sample are determined using this test. Metallic materials are ranked in their resistance to scratching abrasion under a controlled environment.
ASTM E2141 test methods provide accelerated aging and monitoring of the performance of time-dependent electrochromic devices (ECD) integrated in insulating glass units (IGU). This test helps to understand the relative serviceability of electrochromic glazings applied on ECD.
ASTM C724 test method is used in analyzing the quality and ease of maintenance of a ceramic decoration on architectural-type glass. This test method is useful in the acknowledgment of technical standards.
Send us a request
Process for testing
You share material and testing requirements with us
We ensure your sample pick-up in an ensured manner
We deliver test report to your inbox
Just share your testing requirements and leave the rest on us!
Free, no-obligation consultation
Quick turnaround time
Let us combine our capabilities to achieve success!!