This macroscopic method has very wide application. Selection of the type and concentration of the reagent, the temperature of the reaction and the conditions of surface preparation of the test piece make it possible to achieve the required aim. Specifies general, principle, reagents, test piece, procedure, preservation of test pieces and test report.
Số hiệu tiêu chuẩn
ISO 4969
Tên tiêu chuẩn
Steel; Macroscopic examination by etching with strong mineral acids
Ngày phát hành
1980-02-00
Tiêu chuẩn tương đương
BS 6533 (1984-09-28), NEQ * GB/T 226 (1991), NEQ * NF A05-152 (1984-09-01), IDT * JIS G 0553 (1996-10-20), MOD * JIS G 0553 (2008-03-20), MOD * TS 3849 (1982-12-14), IDT * NP-1925 (1982), IDT * UNI 3138 (1984), MOD
Thay thế bằng
ISO 4969 (2015-08)
Từ khóa
Chemical-resistance tests * Inorganic acids * Macroscopic examination * Metallography * Steels * Testing
.png)
.jpg){kind=logo}
.jpg){kind=logo}
-_-logo.png){kind=logo}
