SH/T 0657-2007 (English Version) PDF

Scope: 1.1 This standard specifies the method for determination of total nitrogen content in liquid petroleum hydrocarbons. This standard is suitable for the determination of naphtha, petroleum fractions and other oils with a boiling point range of 50 ℃ ~ 400 ℃, a viscosity range of about 0.2mm/s ~ 10mm/s at room temperature, and a total nitrogen content of 0.3mg/kg ~ 100mg/kg. Taste. 1.2 For samples with a total nitrogen content greater than 100 mg/kg in liquid petroleum hydrocarbons, the SH/T 0704 method is more applicable. Collaborative experimental studies between laboratories have shown that this method can also be applied to samples outside the range specified by the method by selecting an appropriate solvent to dilute the nitrogen content and viscosity range of the sample to the range specified by the method. However, the operator should check the solubility of the sample in the solvent and confirm that when the diluted sample is injected directly into the furnace with a syringe, the measurement results will not be lower due to pyrolysis of the sample or solvent in the needle tube. 1.3 This standard uses International System of Units [SI] units. 1.4 This standard covers certain hazardous materials, operations and equipment, but is not intended to provide recommendations on all safety issues related thereto. Therefore, users should establish appropriate safety and protective measures and determine the applicable management system before using this standard.

SH/T 0657-2007 Referenced Document

GB/T 1884 Crude petroleum and liquid petroleum products--Laboratory determination of density--Hydrometer method
GB/T 4756 Method for manual sampling of petroleum liquids*， 2015-12-31 Update
SH/T 0604 Crude petroleum and petroleum products.Determination of density.Oscillating U-tube Method
SH/T 0704 Standard test method for nitrogen in petroleum and petroleum products by boat-inlet chemiluminescence

2007 SH/T 0657-2007 Standard test method for trace nitrogen in liquid petroleum hydrocarbons by syringe/inlet oxidative combusaonand and chemiluminescence detection
1998 SH/T 0657-1998 Standard test method for trace nitrogen in liquid petroleum hydrocarbons by syringe/inlet oxidative combustion and chemiluminescence detection