A1 General requirements this method is not applicable to electroplated assemblies because it is difficult to ensure complete removal of the substrate coating. บันทึก: β-ray backscattering method is more suitable for routine determination of the data layer composition of electrical data assembly. If an arbitration analysis of the composition of the coating...
B0 Introduction B0.1 Conventional method All methods given in this Appendix may be considered to be of sufficient accuracy provided that specimens conforming to the methods specified in this Appendix are used correctly. The conventional test method chosen should be the one that yields the most reliable results expected, taking into account...
c1 friction test The test was carried out on a coating with an area of not more than 000mm2 on the main surface using the 10,000 method specified in GB/T5270. In a handle length of 60~100mm, the length of the masher is 30~50mm, the width is 5~10mm, and the knife edge is...
These guidelines draw the user's attention to: ก) If some properties of the tin-lead alloy are not known, it may lead to the incorrect use of this coating; ข) Properties and preparation of the substrate; ค) Electroplating practice. Performance of D1 coating ISO 2179-1986 Guidelines for Common National Standards and Specifications for Electroplating May lead to...
1 Range This standard specifies technical requirements and test methods for electroplating of intermetallic tin-nickel alloys consisting of approximately 65%(mass ratio) tin and 30%(mass ratio) nickel. This standard applies to electroplating of tin-nickel alloys on steel and other metal products, which can prevent corrosion of the base metal under different conditions of...
ไอเอสโอ 483:1988 is applicable to a small number of samples before the test of the shape adjustment or can be carried out in this small seal of the internal energy test, such as electrical performance test. The details are described below. 1 Scope of application This standard specifies guidelines for the construction...
1 Scope of application This standard specifies two empirical methods for quantifying the loss of plastic volume in the presence of activated carbon and under certain temperature and time conditions. วิธี ก: The sample is directly connected with the activity, especially suitable for materials that will flow at high temperatures and need...
This standard specifies a method for determining the tendency of a plasticizer to seep from the former to other plastics or materials when a plastic containing a plasticizer is in close contact with the latter. It is generally used to evaluate the tendency of plastics to lose their liquid components....
