NB/SH/T 0230-2019 in English

VALID

Determination of composition in Vquefied petroleum gases勿gas chromatography

Issued on:2019-06-04
Implemented on:2019-10-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $220.00
$214.00

Standard No:	NB/SH/T 0230-2019
Document status:	VALID
Title in English:	Determination of composition in Vquefied petroleum gases勿gas chromatography
Title in Chinese:	液化石油气组成的测定气相色谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2019-06-04
Implemented on:	2019-10-01
Superseding:	SH/T 0230-1992 Determination method for composition of liquefied petroleum gas (chromatography method )
Professional Classification:	NB-Energy
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hn-200ds gas chromatograph composition Advantages of Gas Chromatography Composition and classification of chromatographic systems Petroleum chromatography components Gas chromatography separation gasification temperature is too low liquid chromatography test pta Crude oil standard gas chromatography gas chromatography Implementation of gas chromatograph detection of liquefied gas Gas chromatography normalization method standard curve Gas phase composition trace analysis method Standard ranges in liquefied gas analytical chromatography Petrochemical Laboratory Gas Chromatography Sampling Methods Commonly used mobile phase degassing methods for liquid phases How to test whether gas chromatograph ignition is successful The purpose and method of gas chromatography column color aging How to select stationary solutions for gas chromatographs Preparation of gas chromatography standard curve solution Petroleum benzene composition analysis Liquefied gas analysis gas chromatography standard sample Gas chromatographic determination method for the composition of coked oil products Gas chromatograph liquid preparation method Gas Chromatography Standard Solution Preparation Determination method of nitrogen gas chromatography Gas chromatography standard solution preparation Standard gases for oil chromatography How to determine success of liquid chromatography method Commonly used qualitative methods in gas chromatography How to prepare standard solutions for gas chromatography Gas chromatography standard solution concentration The role and method of liquid chromatography degassing NB/SH/T09132015 nb/t10320-2019 sh/t 0230 2019 sh/t3018-2019 nb/t 10158-2019 Gas chromatography standard solution preparation nb/t 10372-2019 nb/t 10175-2019 sh/t 0230 sh/t0230 nb/sh/t 0230-2019 nb/t 10205-2019 nb/t 10289 - 2019 sh/t3205-2019 oil change chromatography liquid chromatography electron gas nb/sh/t 2408 nb/t 10287-2019 nb/t 10288-2019 nb/t10634-2019 Determination method of petrochemical components Standard solution addition method for gas chromatography Ammonia gas phase determination method nb/t 10292-2019 nb/t 10133-2019 nb/t10181-2019

Introduction

Analysis of the core content of the standard

Technical elements	1992 edition	2019 edition	Improvement significance
Scope of application	C₁-C₅ pure hydrocarbons	Pure hydrocarbons + oxygen-containing compounds (dimethyl ether, etc.)	Adapt to the detection needs of new fuels
Injection method	Water bath vaporization	Liquid valve/flash evaporator	Improve injection accuracy
Chromatographic system	Single column and single valve	Dual system configuration	Achieve full component analysis

Key technological breakthroughs

The standard innovatively adopts a combination of Al₂O₃ capillary column and Lowox polar column:

System 1: 30m Al₂O₃ column to achieve complete separation of C₁-C₅ hydrocarbons
System 2: Add 10m Lowox column, can detect dimethyl ether (1-40%), methanol (0.01-1%) and other oxygen-containing compounds

Implementation points

Quality control requirements

Calibration samples must be prepared in accordance with the weighing method of GB/T 5274
Liquid valve injection RSD <3%, flash evaporator injection RSD <4%
Calibration curve for oxygen-containing compounds R²≥0.990

Safety precautions

When detecting samples containing dimethyl ether, it is necessary to use inertized cylinders to avoid the risk of leakage due to swelling of rubber seals.

Application Scenario Analysis

Detection Type	Typical Components	Related Standards
Automotive LPG	C₃-C₄ Hydrocarbons	GB 19159
Blended Dimethyl Ether	Dimethyl Ether + Hydrocarbons	GB 11174
MTBE Process Gas	Methanol/MTBE+C₄	Process Control

More samples: GB 18306-2015 DL/T 5154-2012 JGJ 94-2008

Sample only — not a preview of NB/SH/T 0230-2019

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