NF T56-119*NF EN ISO 1923 (1995-07-01), IDT * DIN 53570 (1981-06), MOD * DIN EN ISO 1923 (1995-06), IDT * 94/300609 DC (1994-03-15), IDT * BS EN ISO 1923 (1995-07-15), IDT * BS 4370-1 (1988-02-29), NEQ * BS 4443-1 (1988-02-29), NEQ * GB/T 6342 (1996), IDT * EN ISO 1923 (1995-05), IDT * NF T56-119 (1983-09-01), IDT * NF T56-121 (1983-09-01), NEQ * JIS K 7248 (2005-10-20), IDT * SN EN ISO 1923 (1995), IDT * OENORM EN ISO 1923 (1995-09-01), IDT * OENORM EN 21923 (1994-05-01), IDT * PN-EN ISO 1923 (1999-10-22), IDT * SS-EN ISO 1923 (1995-06-30), IDT * UNE 53498 (1991-12-16), IDT * UNE-EN ISO 1923 (1996-08-12), IDT * TS 1856 (1987-09-03), IDT * DS/ISO 1923 (1982), IDT * NBN T 46-006 (1983), IDT * NEN-ISO 1923 (1982), IDT * NP-2122 (1983), IDT * UNI 6348 (1985), MOD * STN EN ISO 1923 (2001-10-01), IDT * CSN EN ISO 1923 (1997-02-01), IDT * DS/EN ISO 1923 (1995-10-12), IDT * NEN-EN-ISO 1923:1995 en (1995-06-01), IDT