Specifications of a method for the determination of the indentation hardness of plastics by means of the Rockwell hardness tester using the Rockwell M, L and R hardness scales. The Rockwell hardness number is derived from the net increase in depth of impression as the load on an indentor is increased from a fixed minor load to a major load and then returned to the same minor load. For materials having high creep and recovery, the time-factors involved in application of the major and minor loads have a considerable effect on the results of the measurements.
Số hiệu tiêu chuẩn
ISO 2039-2
Tên tiêu chuẩn
Plastics; Determination of hardness; Part 2 : Rockwell hardness
Ngày phát hành
1987-07-00
Tiêu chuẩn tương đương
NF T51-024-2*NF ISO 2039-2 (1994-06-01), IDT *
NF T51-024-2*NF EN ISO 2039-2 (1999-09-01), IDT * DIN EN ISO 2039-2 (2000-01), IDT * BS EN ISO 2039-2 (1992-02-28), IDT * BS 2782 PART 3 METHOD 365C (1992), IDT * GB/T 3398.2 (2008), IDT * EN ISO 2039-2 (1999-06), IDT * prEN ISO 2039-2 (1998-09), IDT * UNI 4278 (1989), IDT * JIS K 7202 (1995-05-01), MOD * JIS K 7202-2 (2001-02-20), IDT * JIS K 7202-2 (2000-09), IDT * SN EN ISO 2039-2 (1999-12), IDT * OENORM EN ISO 2039-2 (1999-12-01), IDT * OENORM EN ISO 2039-2 (1999-01-01), IDT * PN-EN ISO 2039-2 (2002-01-28), IDT * SS-EN ISO 2039-2 (1999-06-18), IDT * UNE-EN ISO 2039-2 (2000-07-24), IDT * GOST 24622 (1991), IDT * TS 9406 (1991-05-21), IDT * TS 9406 EN ISO 2039-2 (2004-04-06), IDT * NEN-ISO 2039-2 (1990), IDT * STN EN ISO 2039-2 (2001-09-01), IDT * CSN EN ISO 2039-2 (2000-04-01), IDT * DS/EN ISO 2039-2 (1999-12-08), IDT * NEN-EN-ISO 2039-2:1999 en (1999-06-01), IDT * NEN-ISO 2039-2:1990 en (1990-02-01), IDT
Từ khóa
Determination * Ebonite * Hardness * Hardness measurement * Indentation tests * Material testing machines * Mechanical testing * Plastics * Resistances to indentation * Rockwell hardness * Rockwell hardness measurement * Testing