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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Preparation of Test Apparatus see manual 1. Report the type of abradant and the mass of the weights used.

Using the smallest cutting die, cut six circular specimens from the fabric to be tested with each specimen being 1.

Describe the material or product sampled and the method of sampling used. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier d49666 agree to interpret future test results in light of the known bias.

It 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. Put specimens back on the machine and continue with the test. When cutting specimens, avoid wrinkles, folds or creases.

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.

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For the purposes of the Quality Assurance Class, you will be using Option 1.

Abrasion Resistance of Textile Fabrics Using Martindale

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. Historical Version s – view previous versions of standard.

Abrasion resistance is measured by subjecting the specimen to rubbing motion in the form of a geometric figure.

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. The machine should already be ast to run a batch of movements. Place the assembled holders into the machine, replacing silver caps and black knobs.

Remove the specimen holders from the Martindale tester by a. Resistance to abrasion is evaluated by various means, including comparison to visual aids in the form of photographs or actual samples. When d466 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.

Push the green button to start the batch 3. Starting the abrasion tester 1. 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. The average results from the two laboratories should be compared using Students t-test for unpaired data and an d466 probability level chosen by the zstm parties before the testing is begun.

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Turn the power on. The abradant must be changed accordingly at frequent intervals or checked periodically against a standard.

Martindale Type Fabric Abrasion (Abrader) Tester for ASTM D, ISO and ISO Testing

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. Make all tests in the standard atmosphere for testing. The end point if reached for a woven when two or more yarns have broken, or for a knitted fabric when a hole appears.

Removing the silver covers held on by the black knobs. Take care not to apply too much pressure on the cutting die as it will break the razor blades. With disposable abradants, the abradant is used only once or changed after limited use. Agreement between laboratories conducting this test is poor, but it is used widely, especially outside the United States.

ASTM D Test Method for Abrasion Resistance of Textile Fabrics

Loosening and lifting off the black knobs on top of the tester. Lifting the specimen holders out 3. Competent statistical assistance is recommended for the investigation of bias.