ASTM E161-17(2021)

Podrobné informace

Označení: ASTM E161-17(2021)

Datum vydání: 01.09.2021

Stran: 4

Země: Americká technická norma

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Anotace

This specification covers the requirements for design and construction of electroformed sieves. These sieves are used to perform particle-size distribution analysis and in preparing narrowly designated particle-size fractions. They may also be used as reference standards when suitably calibrated. The material used in the manufacture of the sieve sheet shall be nickel or a metal suitable for electrodeposition in a firm crystalline structure. The sheet shall have square or round openings with straight uniform sides and smooth, flat surfaces except for a slight bevel along the edges of the openings. Frames for precision electroformed sieves shall be made from non-corrosive material such as brass or stainless steel, and constructed in such a manner as to be rigid.


Keywords:
electroformed sieve, micro sieve, opening, particle size, sieve, sieve analysis, test sieve,, ICS Number Code 25.220.20 (Surface treatment)