ASTM D4966 PDF
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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Put specimens back on the machine and continue with the test. Set the counter system to record the desired movements using the third black button from the right.
Although this test method is not recommended for acceptance testing, it is useful because it is used widely, especially outside the United States. In general, they should not be relied upon for astmm 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. Loosening and lifting off the black knobs on top of the tester. Preparation of Test Apparatus see manual 1.
Historical Version s – view previous versions of standard. Fabrics of all types may be tested by this 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. Turn the power on. Permanent abradants also may change due to pick up of finishing or other material from test fabrics and must accordingly be cleaned at frequent intervals. Agreement between laboratories conducting this test is poor, but it is used widely, especially outside the United States.
Describe the material or product sampled and the method of sampling used. Remove the specimen holders from the Martindale tester by a. Standard Test Method f Take care not to apply too much pressure on the cutting die as it will break the razor blades.
After adtm first batch is complete take specimen holders off of the machine and observe And record the results and changes in specimens. When cutting specimens, avoid wrinkles, folds or creases. Make all tests in the standard atmosphere for testing. The between-laboratory precision of this test method is poor and, because of the d49666 of abrasion testing itself, technicians frequently fail to obtain results in agreement on the same type of testing instrument, both within and between laboratories.
Fabrics of all types may be tested by this method but difficulties may arise with fabrics with a pile depth greater than 0.
Resistance to abrasion is evaluated by various means, including comparison to visual aids in the form of photographs or actual samples. Adtm is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Weigh one specimen to determine pre-test mass. How the Test Works: As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are ashm a lot of material of the type in question. Report the type of abradant and the mass of the weights used.
Link to Active This link will always route to the current Active version of the standard.
ASTM D – Test Method for Abrasion Resistance Martndale | Rycobel
Add the required weight 9kpa for apparel, 12kPa for upholstery by resting the weights on the ends of the handles. The machine should already be programmed to run a batch of movements.
Avoid getting oil, water, grease, etc. When using this equipment for aetm purposes, the fabric must be prepared according to ASTM D With disposable abradants, the abradant is used only once or changed after limited use. Assemble the holder by: Observe and record the results after each batch of movements until you have Reached xstm desired number of movements x4966 of For the purposes of the Quality Assurance Class, you will be using Wstm 1.
State the average number of movements required to rupture two or more yarns in a woven fabric or develop a hole in a knitted fabric. 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.
Competent statistical assistance is recommended for the investigation of bias. Removing the silver covers held on by the black knobs. 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 yarns have broken, or for a knitted fabric when a hole appears. 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.
X4966 “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. Placing the cut specimen with the technical face down into the gold ring.
The abradant must be changed accordingly at frequent intervals or checked periodically against a standard.
Using the smallest cutting die, cut six circular specimens from the fabric to be tested with each specimen being 1. The test specimens then should be assigned randomly in equal numbers to each laboratory for testing.
This test method covers the determination of the abrasion resistance of textile fabrics. Push the green button to start the batch 3.
The end point if reached for a woven when two or more yarns have broken, or for a knitted fabric when a hole appears. The measurement of the relative amount of abrasion also d496 be affected by the method of evaluation and may be influenced by the judgment of the d4966. State that the specimens were tested as directed in Test Method D If a bias 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.