ASTM E595 Total Mass loss and Collected Volatile Condensable Materials
ASTM E595 measures the total mass loss (TML) and collected volatile condensable materials (CVCM) from outgassing in a vacuum environment. This standard assesses the appropriateness of materials for use in space and vacuum. The test employed a vacuum chamber, a controlled heating system, and collection plates to determine the material's outgassing properties. Test reports include results for total mass loss, water vapor recovery, and recovery of condensable volatile compounds. ASTM E595 assists manufacturers in evaluating risks of contamination, material stability, and compatibility with vacuum conditions.
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ASTM E595 Introduction
The ASTM E595 (Standard Test Method for Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment) test determines the amount of hazardous substances released from materials in a vacuum at an accelerated temperature. The volatile material contaminates sensitive surfaces and adversely affects the equipment’s overall performance when exposed to Hoover conditions. ASTM E595 describes polymers, adhesives, coatings, lubricants, sealants, insulation materials, and digital elements that are used in aerospace and vacuum carrier applications.
Get Certified ASTM E595 Testing for Reliable Vacuum Compatibility
The certification confirms that the material meets exhaust gas requirements for use in aerospace and/or vacuum systems. The certified check guarantees material reliability, reduces the hazard of infection, and is useful for the material’s overall performance over a long period of time under vacuum conditions
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ASTM E595 Testing
Expert Consultation
Testing Procedures and Requirements
First, the technician prepares the test specimen and weighs it to the correct amount. The technician then puts the specimen in a vacuum chamber with controlled temperatures. When heated in a vacuum, the material releases volatiles. A cooled collection plate traps the condensable vapors from the specimen. Finally, the technician determines the mass loss and collects the condensable materials after the test.
Specimen Setup
The specimen is placed under a specific vacuum and maintained at a specific vacuum level and temperature over a given period.
Calculation
During the test, the system gathers the outgassed materials on an appropriate collection surface. This surface collects material that comes off during the vacuum exposure. The technician then measures the mass of the specimen and the collection surface after the test to calculate the total mass loss and the mass of volatile condensable materials.
ASTM E595 Heating System
Scope of ASTM E595
Delivers a variety of measurements in a vacuum.
Compares the contamination risk of materials.
Supports materials testing for the aerospace and satellite industries.
Works with polymers, coatings, and electronic materials.
Helps with vacuum compatibility evaluation.
ASTM E595 Equipment and Sample Preparation
Samples and Specimen details
The technologists test materials used in spacecraft, satellites, optical instruments, and other vacuum-sensitive aerospace applications. Test samples are polymers, adhesives, sealants, coatings, elastomers, composites, lubricants, insulating materials, and electronic components. The samples are in their final form and are free of contamination that could affect outgassing measurements.
Specimen dimensions
Usually, the specimen size is 25.4 mm (1 inch) or 50.8 mm (2 inches) with a thickness of around 1 to 3 mm (0.04 to 0.12 inches).
Specimen preparation
Operators take and/or prepare samples of the material that represent the material, and clean them according to applicable procedures without changing the material composition. They treat the samples in controlled conditions, weigh them on a calibrated analytical balance, and then firmly load them into the test chamber for exposure to vacuum and temperature.
Use of ASTM E595
Tests if materials can withstand the vacuum
Helps to protect spacecraft from contamination control
Helps qualify aerospace materials
Helps to protect electronics and optical systems
Uses cool materials in vacuums
Why is outgassing important?
The significance of outgassing is that if a material is placed in a vacuum environment, it can emit volatile compounds that can contaminate adjacent surfaces. It degrades the performance of sensitive devices such as optical systems, sensors, and solar panels. ASTM E595 helps identify materials with low outgassing characteristics, ensuring reliability and cleanliness in aerospace and space applications.
What is total mass loss (TML)?
Total mass loss presents the percentage of material loss in a vacuum. High TML values indicate that many volatiles have been released and that the vacuum stability is poor.
Common Challenges and Troubleshooting
Technicians encounter sample contamination, volatile compounds, inaccurate weighing, and temperature fluctuations throughout the testing. These affect the outgassing size results. However, proper sample management, calibrated instruments, and controlled conditions enhance accuracy and repeatability.
ASTM E595 Testing Technique, Process, and Data Collection
The technician cleans and weighs the specimen before testing. The technician then drops the specimen into the vacuum chamber, which has a cooled collection plate. The system uses a vacuum and high temperature to encourage outgassing. The volatiles evaporate from the material and condense onto the collection plate. Lastly, the technician measures the mass changes and calculates TML, CVCM, and the water vapor regain.
Analysis Results and Interpretation
ASTM E595 measures total mass loss (TML) as well as collected volatile condensable materials (CVCM) and water vapor regain (WVR) in percent (or percentage (%). Low TML and CVCM values indicate good vacuum compatibility and a lower risk of contaminating the vacuum. High values indicate unsuitable materials for aerospace and vacuum applications.
Factors to Consider for ASTM E595 Testing
Speed: Efficient testing brings quicker aerospace material qualification.
Expertise: Skilled technicians provide accurate control of the vacuum and gravimetric analysis.
Cost: Optimized testing procedures reduce aerospace testing and development costs.
You can share your astm e595 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e595 test to various testing techniques.
How much do I need to pay for the astm e595 test?
Please contact us for a detailed quote for your astm e595 testing needs. Cost incurred to carry out different astm e595 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm e595?
The required number of samples or specimens should comply with the procedure given in the astm e595 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the astm e595 test?
MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm e595 test?
The turnaround time for astm e595 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the astm e595 tested?
You can share your astm e595 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e595 test to various testing techniques.
MaTestLab Inc. offers accessible, quick, and affordable material testing, product testing, and failure analysis services. We support your on-demand testing and expert consultation needs with the help of our extensive network of material testing laboratories situated in the US and other parts of the world.
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