ASTM E793−06 Enthalpies of Fusion and Crystallization by Differential Scanning Calorimetry
E793 – 06 uses differential scanning calorimetry to determine the enthalpy (heat) of fusion (melting) and crystallization (DSC). It is used on solid materials in the form of granules or any constructed shape from which an acceptable specimen can be cut, as well as liquid samples that crystallize within the instrument's range. SI units are used as standard.
Scope:
E793 – 06 is useful for quality control, specification acceptance, and research. Differential scanning calorimetry is a quick way to determine the enthalpy changes that accompany first-order material transitions.
Procedure
The temperature region of fusion or crystallization is reached by heating a test specimen at a regulated rate in a controlled environment. The heat flow associated with the endothermic process of fusion is measured and integrated over time. It is thus possible to acquire absolute figures for the enthalpy of fusion or relative values for comparative reasons.
Specimen size
Heat the specimen at 10°C/min through the melting
Weigh 1 to 15 mg of the specimen to an accuracy of +/−0.1% into a clean, dry specimen capsule.
Data
H= EH0/W
H = enthalpy of fusion (or crystallization) of the sample in J/g,
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 is a standard test method for the analysis of sulfochromate etches solution 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
STEP 01
You share material and testing requirements with us
STEP 02
We ensure your sample pick-up in an ensured manner
STEP 03
We deliver test report to your inbox
Just share your testing requirements and leave the rest on us!
Free, no-obligation consultation
Guaranteed confidentiality
Quick turnaround time
Hassle-free process
Let us combine our capabilities to achieve success!!