ASTM D2061Fig.9 Test Fikstürü

Açıklama

ASTM D2061 – Standard Test Methods for Strength Tests for Zippers

ASTM D2061 covers the determination of the strengths for zipper and zipper parts. All methods are not suitable for use with all kinds of zipper.

---

ASTM D2061 / HOLDING STRENGTHS OF SEPARABLE UNITS

These test methods cover the determination of the holding strengths of separable units of zipper and parts thereof.

---

ASTM D2061 / Summary of Test Methods

The strength of attachment of the separable unit components is determined by three test methods that simulate important stresses encountered in end use of zippers

---

ASTM D2061 / Significance and Use

Separable Pin, Pull-off—This test method may be used to determine separable pin attachment strength which measures the ability of the separable pin to resist

displacement on the tape bead when a longitudinal force is applied.

---

ASTM D2061 / Apparatus

Testing Machine,

Separable Pin Fixture, as shown in Fig. 9 for holding the separable pin in the pull-off test.

---

ASTM D2061 / Procedure

Separable Pin, Pull-Off—Separate the two stringers and, adjacent to the separable pin, remove one or more elements from the stringer.

Secure the separable pin fixture (Fig. 9) in the upper clamp of the testing machine.

Then seat the separable pin on the fixture notch as shown in Fig. 9.

With a distance of approximately 76 mm (3 in.) between the seated end of the pin and the top of the lower clamp, secure the stringer in the lower clamp.

Apply an increasing load until the separable pin pulls off, until the tape breaks, or until failure of some other kind occurs.

Record the nature of the failure and the load at failure to the nearest 2.2 N (0.5 lbf) for values under 222 N (50 lbf) and to the nearest 4.4 N (1 lbf) for values 222 N and over.

*** Before conducting ASTM D2061 , it is important to read the entire specification. Standards can be obtained from appropriate standard authorities.

 

***PARSROS  offers several types of grips and fixtures which will enable you to perform a variety of tests

  that are accurate and repeatable.