Tiêu chuẩn quốc tế

Số hiệu

Standard Number

ASTM B490-09
Năm ban hành 2009

Publication date

Tình trạng A - Còn hiệu lực

Status

Tên tiếng Anh

Title in English

Standard Practice for Micrometer Bend Test for Ductility of Electrodeposits
Chỉ số phân loại Quốc tế (ICS)

By field

17.040 - Ðo tuyến tính và góc. Ðo bề mặt
17.040.20 - Tính chất bề mặt
25.220 - Xử lý bề mặt và mạ
25.220.40 - Lớp mạ kim loại
Số trang

Page

2
Giá:

Price

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Scope of standard

1.1 This practice describes a procedure for measuring the ductility of electrodeposited foils. 1.2 This practice is suitable only for the evaluation of electrodeposits having low ductility. 1.3 The obtained ductility values must only be considered semi-quantitative because this test has a significant operator dependence. 1.4 This practice is best used for in-house process control where measurements are always made by the same operator. A change in ductility value can be used as an indication of possible changes in the electroplating solution. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address the safety problems, if any, associated with its use. 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.