The prescribed apparatus shall not be used for materials having gauge vapour pressures higher than 1,4 MPa (absolute vapour pressure 1,5 MPa) at the test temperature. Alternative calibration procedures are described, but only the one using a certified hydrometer is suitable for the determination of density to be used in calculations of qualities for custody transfer or fiscal purposes.
Số hiệu tiêu chuẩn
ISO 3993
Tên tiêu chuẩn
Liquefied petroleum gas and light hydrocarbons; Determination of density or relative density; Pressure hydrometer method
Ngày phát hành
1984-08-00
Tiêu chuẩn tương đương
NF M41-008*NF EN ISO 3993 (1995-12-01), IDT * DIN 12804 (1975-04), MOD * DIN EN ISO 3993 (1995-11), IDT * NBN ISO 3993 (1992), IDT * BS EN ISO 3993 (1996-02-15), IDT * BS 6665 (1985-12-31), IDT * EN ISO 3993 (1995-08), IDT * prEN ISO 3993 (1994-11), IDT * NF M41-008 (1979-07-01), MOD * JIS K 2240 (1991-05-01), MOD * JIS K 2240 (2007-03-20), MOD * JIS K 2240 (2013-03-21), MOD * SN EN ISO 3993 (1996), IDT * OENORM EN ISO 3993 (1996-03-01), IDT * OENORM EN ISO 3993 (1995-02-01), IDT * PN-EN ISO 3993 (2000-07-03), IDT * SS-EN ISO 3993 (1995-12-08), IDT * UNE-EN ISO 3993 (1996-06-19), IDT * GOST ISO 3993 (2013), IDT * STN EN ISO 3993 (1999-08-01), IDT * CSN EN ISO 3993 (1998-06-01), IDT * DS/EN ISO 3993 (1996-07-04), IDT * NEN-EN-ISO 3993:1996 en (1996-02-01), IDT
Từ khóa
Definitions * Density * Density measurement * Determination * Hydrocarbons * Hydrometer method * Hydrometers * Light hydrocarbons * Liquefied petroleum gas * Liquid fuels * Petroleum products * Physical testing * Pressure * Relative density * Test equipment * Testing * Vapour pressure