Arti dan Tujuan
4.1 This guide provides a useful summary of procedures for selecting and using test coating powders and powder coatings. It is applicable to thermoplastic and thermoset coatings unless otherwise stated. By design, this guide is not intended to address test methods or procedures developed specifically for the functional powder coatings market, namely those coating powders used in pipes or reinforcing rebar (rebar). Information on current test procedures for coating powders and powder coatings for pipes and reinforced rebar can be obtained through their respective ASTM subcommittees A01.05 and D01.48.

4.2 The choice of the methodology to follow and the interpretation of the results needs to depend on the experience and requirements of each case, as well as the agreement between the buyer and the seller. It should be noted that many of the methods used to characterize paint powders, such as gel time (Section 16) and tilt flow (Section 17), are primarily used for the relative comparison of two paint powders, rather than giving test values that can be interpreted as good or bad. The interpretation of the test results will depend on the specific application in question and often also on the chemical nature of the coating powder used.

ASTM D3451-06-2017 Pengujian Powder Coating dan Powder Coating

Ruang lingkup
1.1 This guide covers the selection and use of procedures for testing paint powders and powder coatings. Meja 1 mencantumkan metode pengujian yang disertakan. If more than one test method is listed for the same feature, no attempt is made to show that one method is superior to the other. The choice of the method to follow needs to depend on the experience and requirements of each case, as well as the agreement between buyer and seller.

1.2 This guide also refers to methods developed specifically for the paint powder industry by the Powder Coating Association (PCI) and the International Standards Organization (ISO).

1.3 This guide describes the testing of paint powders by electrostatic spraying, fluidized bed, or any other applicable method.

ASTM D3451-06-2017 Pengujian Powder Coating dan Powder Coating

1.4 Nilai yang dinyatakan dalam satuan SI harus dianggap sebagai nilai standar. Satuan pengukuran lain tidak termasuk dalam standar ini.

1.5 Standar ini tidak dimaksudkan untuk mengatasi semua masalah keselamatan, jika ada, terkait dengan penggunaannya. Pengguna standar ini bertanggung jawab untuk menetapkan praktik keselamatan dan kesehatan yang sesuai dan menentukan penerapan pembatasan peraturan sebelum digunakan..

1.6 Standar internasional ini telah dikembangkan sesuai dengan prinsip-prinsip standardisasi yang diakui secara internasional yang ditetapkan dalam Keputusan Prinsip-Prinsip Pengembangan Standar Internasional, Pedoman dan Rekomendasi yang dikeluarkan oleh Komite Hambatan Teknis Perdagangan Organisasi Perdagangan Dunia.