Abrasion Resistance by the Martindale Method. ASTM D Standard Test Method for Abrasion Resistance of Textile Fabrics (Martindale. Abrasion Tester. ASTM D Standard Test Method for Abrasion Resistance of Textile Fabrics ( Martindale Abrasion Tester Method). Products. MARTINDALE ABRASION AND. ASTM D(). Standard Test Method for Abrasion Resistance of Textile Fabrics (Martindale Abrasion Tester Method). standard by.
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State that the specimens were tested as directed in Test Method D Removing the silver covers held on by the black knobs. How the Test Works: Resistance to abrasion is evaluated by various means, including comparison to visual aids in the form of photographs or actual samples. Assemble the holder by: Push the green button to zstm the batch 3. Starting the abrasion tester 1.
The between-laboratory precision of this test method is poor and, because of the nature of abrasion testing itself, technicians frequently fail to obtain results in agreement on the same type of testing instrument, both within axtm between laboratories. The resistance of textile materials to abrasion as measured on a testing machine in the laboratory is generally only one of several factors contributing to wear performance or durability as experienced in the actual use of the material.
Observe and record the results after each batch of movements until you have Reached the desired number of movements total asttm The end point if reached for a woven when two or more yarns have broken, or for a knitted fabric when a hole appears.
Report the type of abradant and the mass of the weights used. Take care not to apply too much pressure on the cutting die as it will break the razor blades. Using the smallest cutting die, cut six circular specimens from the fabric to be tested with each specimen being 1. Add the required weight 9kpa for apparel, 12kPa for upholstery by resting the weights on the ends of the handles.
ASTM D – Test Method for Abrasion Resistance Martndale | Rycobel
Screw the handle back on. The face must sit flush and square inside the ring. Agreement between laboratories conducting this test is poor, but it is used widely, especially outside the United States. For the purposes of the Quality Assurance Class, you will be using Option 1. It is the responsibility of the user of this standard to establish appropriate safety and health practices asm determine the applicability of regulatory limitations prior to use. Fabrics of all types may be tested by ashm method, including woven, non-woven, and knit apparel fabrics, household fabrics, industrial fabrics, and floor coverings, but difficulties may arise with fabrics with a pile depth greater than 2mm.
The abradant must be changed accordingly at aetm intervals or checked periodically against a standard. The measurement of the relative amount of abrasion also may be affected by the method of evaluation and may be influenced by the judgment of the operator.
Martindale Type Fabric Abrasion (Abrader) Tester for ASTM D, ISO and ISO Testing
Set the counter system to record the desired movements using the third black button from the right. Avoid getting oil, water, grease, etc. As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are from a lot of material of the type in question.
Historical Version s – view previous versions of standard. The test specimens then should be assigned randomly in equal numbers to each laboratory for testing. It is not surprising, therefore, to find that there are many different types of abrasion testing machines, abradants, testing conditions, testing procedures, methods of evaluation of abrasion resistance, and interpretation of results. After the first batch is complete take specimen holders off of the machine and observe And record the results and changes in specimens.
Although this test method is not recommended for acceptance testing, it is useful because it is used widely, especially outside d9466 United States. While “abrasion resistance” and “durability” frequently are related, the relationship varies with different end uses, and different factors may be necessary in any calculation when trying to predict durability based on findings from specific abrasion tests.
Standard Test Method f Link to Active This link will always route to the current Active version of the standard. Put specimens back on the machine and continue with the test. Make all tests in the standard atmosphere for testing.
Fabrics of all types may be tested by this method but difficulties may arise with x4966 with a pile depth greater than 0. Preparation of Test Apparatus see manual 1. Loosening and lifting off the black knobs on top of the tester. F4966 the specimen holders out 3.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The end point is reached for a woven fabric when two or more awtm have broken, or for a knitted fabric when a hole appears.
The average results from atm two laboratories should sstm compared using Students t-test for unpaired data and an acceptable probability level chosen by the two parties before the testing is begun. Turn the power on. There are three options for testing abrasion resistance included in this method. Place the assembled holders into the machine, replacing silver caps and black knobs.
Remove the specimen holders from the Martindale tester by a. Describe the material or product sampled and the method of sampling used.
When using this equipment for scientific purposes, the fabric must be prepared according to ASTM D In general, they should not be relied upon for prediction of actual wear-life in specific-end uses unless there are data showing the specific relationship between laboratory abrasion tests and actual wear in the intended end-use.
With permanent abradants that use hardened metal or equivalent surfaces, it is assumed that the abradant will not change appreciably in a specific series of tests, but obviously similar abradants used in different laboratories will not likely change at the same rate due to differences in usage.
Competent statistical assistance is recommended for the investigation of bias.
If a astj is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results in light of the known bias. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. When cutting specimens, avoid wrinkles, folds or creases.
Placing the cut specimen with the technical face down into the gold ring.