Technical standards for quenching and cooling

1. International standards

　　ISO9950-1995. IndustrialQuenchingOils -determinationofCoolingCharacteristcs -alloyprobeTestMethod

2. Japanese Industrial Standard

　　JISK2242-1980 Heat Treatment Oil.

3. Domestic standards

　　The relevant standards and their attributes officially promulgated so far are as follows (in order of promulgation year).

(1) Product standard.

　　Ministry of Space Standard HB5415 -1988 Heat Treatment Quenching Oil.

　　Petrochemical industry standard SH0564-1993, Heat Treatment Oil.

　　Machinery industry standard JB/T6955-1993 "technical requirements for quenching media commonly used in heat treatment";

　　JB/T4393-1999 (instead of JB4393-1987) "polyvinyl alcohol synthetic quenching agent;

　　HJB/T10457-2004" technical conditions for liquid quenching cooling equipment ";

　　JB/T7530-1994" General technical conditions for heat treatment of argon, nitrogen and hydrogen "(applicable to heat treatment protection, cooling and other purposes).

(2) Method standard.

　　SH/T0219-1992 Determination of Thermal Oxidation Stability of Heat Treatment Oil.

　　SH/T0220-1992.

　　JB/T4392-1999 Determination of Properties of Water-Soluble Quenching Medium for Organic Matter (Substitute for JB/T4392-1987).

　　JB/T7951-1999 Test Method for Cooling Performance of Quenching Media (substitute for JB/T7951-1995).

　　JB/T7951-2004 Test Method for Nickel Alloy Probe for Determination of Cooling Performance of Industrial Quenching Oil (replaces JB/T7951-1999). This standard is equivalent to the ISO9950:1995 "Nickel alloy probe test method for determining the cooling performance of industrial quenching oil".