MaTestLab > Test Standards > ASTM C1651 Measurement of Roll Wave Optical Distortion in Heat-Treated Flat Glass
Last updated 14th March 2025
ASTM C1651 Measurement of Roll Wave Optical Distortion in Heat-Treated Flat Glass
ASTM C1651 is a standard method to determine roll wave optical distortion in heat-treated flat glass. The visual appearance and optical quality of the glass are affected by the roll waves occurring during the heat treatment process. The results are crucial for measuring and evaluating these distortions in various lab settings and are used to enhance various industrial applications.
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ASTM C1651 Introduction
ASTM C1651 is an important test method to quantify roll wave optical distortions in heat-treated flat glass to assess its quality and durability. In this method, the internal defects in the materials caused by roll wave optical distortions are detected. The wavy patterns diminish the aesthetic appeal and optical clarity of heat-treated flat glass. The manufacturers benefit from the findings while making decisions regarding material selection and design. MatestLab is one of the best testing service providers, with the best network of testing laboratories in the USA, to carry out ASTM C1651 tests for our clients. ASTM C1651 is used for reliability checks, performance evaluation, and specification purposes.
ASTM C1651 Test Method
The method proceeds as follows:
Service Name
Remarks
ASTM C1651 Testing
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Optical Measurement
ASTM C1651 involves placing the prepared samples on a stable surface and measuring distortion with a target positioned behind the glass. The autocollimator observes and quantifies the roll wave distortion patterns visible through the glass.
Data Analysis and Reporting
Multiple measurements and analyses of the magnitude and distribution of roll wave optical distortion capture the full extent of the distortion.
C1651 Equipment and Sample Preparation
Specimen Details
The ASTM C1651 specimens used are heat-treated flat glass samples, including tempered glass and heat-strengthened glass.
Specimen dimensions
The acceptable specimen size varies with the testing requirements.
Specimen Preparation
The ASTM C1651 specimens are cleaned and prepared as per requirements.
C1651 Results and Interpretation
The results obtained from the ASTM C1651 test method help determine the magnitude and distribution of roll wave optical distortion in heat-treated flat glass products to optimize their production processes and minimize distortions, enhancing their visual quality. These findings aid in quality control, performance evaluation, and research.
Tests Related to ASTM C1651
ASTM C1651 is similar to other standard methods, such as ASTM E903 and ASTM C1048, used for measuring light transmittance and haze in transparent materials and dimensional tolerances and flatness requirements for architectural glass, respectively.
Use of C1651 in Various Industries
It is widely performed in the automotive, architectural, and aerospace industries related to assessing the optical quality of heat-treated flat glasses so that they are eligible enough for strict visual standards with regard to safety along with functionality in windshields, building facades, and aircraft windows.
Materials Commonly Tested with C1651
It tests heat-strengthened and tempered flat glass, which is widely used in automotive windshields, architectural glazing, and safety-critical applications. This test ensures optical clarity under specific heating and cooling treatments, minimizing roll wave distortion.
Common Challenges and Troubleshooting in C1651 Testing
Equipment misalignment, lighting conditions, and operator errors are among the challenges faced by testing. Troubleshooting involves adhering to parameters, calibrating instruments, training personnel, and addressing environmental factors like vibrations and uncontrolled light sources.
Safety and Best Practices in C1651 Testing
The standard requires careful handling of glass samples, wearing PPE, and maintaining a clean and stable work environment to prevent breakage and injury and reduce risks and improve the reliability of the test.
Importance of C1651
It is a very important standard that determines roll wave distortion in heat-treated flat glass to ensure optical quality, safety, and performance, foster consumer trust, and encourage industry compliance with optical and safety regulations.
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FAQ's
Where can I get the astm c1651 tested?
You can share your astm c1651 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 c1651 test to various testing techniques.
How much do I need to pay for the astm c1651 test?
Please contact us for a detailed quote for your astm c1651 testing needs. Cost incurred to carry out different astm c1651 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 c1651?
The required number of samples or specimens should comply with the procedure given in the astm c1651 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 c1651 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 c1651 test?
The turnaround time for astm c1651 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 c1651 tested?
You can share your astm c1651 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 c1651 test to various testing techniques.
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