GB/T 18255-2022 in English

VALID

Method for measuring distillation range of coking viscous oil products

Issued on:2022-04-15
Implemented on:2022-11-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $220.00
$214.00

Standard No:	GB/T 18255-2022
Document status:	VALID
Title in English:	Method for measuring distillation range of coking viscous oil products
Title in Chinese:	焦化粘油类产品馏程的测定方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-04-15
Implemented on:	2022-11-01
Superseding:	GB/T 18255-2000 Coking viscous oil products--Determination of distillation range
ICS Classification:	71.080-Organic chemicals
Professional Classification:	GB-National Standard
Related Keywords:	distillation range viscous oil products introductionstandard technology evolution distillation apparatus diagramspecifications air pressure compensation verification cycledew point correction factor accuracy temperature correction systemcompleteness improvement
Related Topics:	Distillation range Method of measuring fractions coking oil distillation distillate+ Distillation Distillation range determination method Distillation range determination method GB/T 18255 GB/t+18255 product distillation range tar method GBT18255 GB/T 18255-2000 GB/T 18255-2022 Distillation range (°C) GB/T 18255-2022 Determination method of national standard distillation range Petroleum product distillation range meter calibration Product distillation range determination method method of determining or calculating distillation range Determination method of petroleum coke bonding index Determination method of petroleum coke adhesion Crude oil distillation range determination method Method for determination of distillation range of petroleum products Determination of the degree of sulfonation of oils

《GB/T 18255-2022焦化粘油类产品馏程的测定方法》由TC469（全国煤化工标准化技术委员会）归口，TC469SC3（全国煤化工标准化技术委员会炼焦化学分会）执行，主管部门为国家标准化管理委员会。

Introduction

Standard technology evolution and core changes

Comparison dimensions	2000 version	2022 version
Equipment specifications	Unspecified lower diameter measuring cylinder standards	Added 5.2 accuracy requirements
Moisture control	Only dehydration process	Introduction of GB/T2288 measurement standard
Safety specifications	27 descriptions	Expansion of 4 risk warnings

Distillation unit optimization analysis

2022 version addedFigure 5 Distillation apparatus diagramSpecifications:

The condenser tilt angle is accurate to 30°±2°
Air flow control is improved to ±5%L/min accuracy
The heat source remote control interface supports digital management

Operation instructions:Initial calibration must be completed before 82℃, and reheating is required if the error exceeds ±1.5℃

Key instrument configuration instructions

Equipment name	Technical parameters	Quality control points
COK23C thermometer	Range 0 Field1923573836 ℃	Daily calibration temperature difference should be <0.5℃
Electronic balance	Accuracy 0.1g	Antistatic floating operating table

Evolution of temperature correction system

Completeness improvement of formulas (1)-(4):

Added air pressure compensation verification cycle
Dew point correction factor accuracy improved to 0.001 standard
Time decay compensation parameter expanded cubic equation

Application case:Comparison data of a testing center shows that the error of the new correction system has decreased by 32%

Compliance implementation suggestions

Nine-step quality control process of the demonstration laboratory:

Step 1→Humidity verification<28%

Five-day proofreading [n≥5] data deviation<1%

More samples: DL/T 368-2010 JJG 21-2008 DL/T 5154-2012

Sample only — not a preview of GB/T 18255-2022

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