Current Category: CN-JJFSH - Metrological Technical Specifications JJF (Petrochemical Industry)
This specification is applicable to the calibration of nitrogen dioxide gas detection alarms with a measurement range not exceeding 1,000 μmol/mol.
This specification is applicable to the calibration of open-path infrared combustible gas detectors (methane) with a measurement range of (0~5) LEL·m (transmission and reception at both ends of the cross-beam), and other linear beam combustible gas detectors using the principle of spectral absorption can refer to this specification.
This specification is applicable to the calibration of the cetane number tester for compression-ignition engines.
This specification is applicable to the calibration of petroleum product nitrogen analyzers based on the principle of chemiluminescence.
This specification is applicable to the calibration of constant strain type rubber compression and flexure testing machines.
This specification is applicable to the calibration of acetone gas detection alarms based on electrochemical principles, with a measurement upper limit not exceeding 500μmol/mol.
This specification is applicable to the calibration of electrochemical hydrogen phosphide gas detection alarms with a measurement upper limit of no more than 100 μmol/mol.
This specification is applicable to the calibration of incubators with temperature control, tray speed control, and carbon dioxide concentration control (if such a function is available). Other test box equipment with similar functions can refer to this specification for calibration.
This specification is applicable to the calibration of dry heat shrinkage testers. For dry heat shrinkage testers used to measure the dry heat shrinkage performance of impregnated yarns, ropes, etc., this specification can be used as a reference for implementation.
This specification is applicable to the calibration of tubular conveyor belt testing machines used to test the lateral stiffness and flexural fatigue performance of tubular conveyor belts.
This specification is applicable to the calibration of lubricating grease and petroleum grease consistency cone penetration testers.
This standard applies to the calibration of ethanol gas detection alarms with a measurement upper limit of no more than 500μmol/mol.