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GB/T 21451.1-2015

Chinese Standard: 'GB/T 21451.1-2015'
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GB/T 21451.1-2015English379 Add to Cart Days<=4 Petroleum and liquid petroleum products -- Measurement of level and temperature in storage tanks by automatic methods -- Part 1: Measurement of level in atmospheric tanks Valid GB/T 21451.1-2015
GB/T 21451.1-2015Chinese24 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]

   

BASIC DATA
Standard ID GB/T 21451.1-2015 (GB/T21451.1-2015)
Description (Translated English) Petroleum and liquid petroleum products. Measurement of level and temperature in storage tanks by automatic methods. Part 1: Measurement of level in atmospheric tanks
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard E98
Classification of International Standard 75.180.30
Word Count Estimation 21,217
Date of Issue 2015-10-09
Date of Implementation 2016-03-01
Quoted Standard GB/T 13236; GB/T 13894; ISO 1998-1; ISO 1998-2; ISO 1998-3; ISO 1998-4; ISO 1998-5; ISO 1998-6; ISO 1998-7; ISO 1998-99
Adopted Standard ISO 4266-1-2002, MOD
Drafting Organization Ltd. China Petrochemical Research Institute of Petroleum
Administrative Organization National Standardization Technical Committee on products and lubricant oil (SAC/TC 280)
Regulation (derived from) National Standard Announcement 2015 No.31
Proposing organization National Standardization Technical Committee on products and lubricant oil (SAC/TC 280)
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This Standard specifies the storage tank at atmospheric pressure, accuracy Reid vapor pressure of less than 100 kPa of oil and oil products level measurement with immersion and non-immersion type automatic level gauge, installation, commissioning, calibration and testing guidelines. This Standard applies to level measurement and inventory management, custody transfer tank. This Standard does not apply to the installation of automatic level measurement gauge (ALG) frozen tank.

GB/T 21451.1-2015
(Petroleum and liquid petroleum product storage tank level and temperature in automatic measurement - Part 1. pressure tank level measurement)
ICS 75.180.30
E98
National Standards of People's Republic of China
Petroleum and liquid petroleum product storage tank level and
Automatic temperature measurement
Part 1. atmospheric tank level measurement
Part 1. Measurementoflevelinatmospherictanks
(ISO 4266-1.2002, MOD)
Issued on. 2015-10-09
2016-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Measure 2
5 Accuracy 3
6 ALG installation 4
Initial setting and initial inspection site 7 10
8 ALG post-test 15
9 and 15 receives data communications
References 17
Foreword
GB/T 21451 "Petroleum and liquid petroleum product storage tank liquid level measurement and automatic temperature" is divided into six parts.
--- Part 1. pressure tank level measurement;
--- Part 2. tanker tanks level measurement;
--- Part 3. Pressure tank level measurement;
--- Part 4. atmospheric tanks temperature measurement;
--- Part 5. tanker compartment temperature measurement;
--- Part 6. Pressure tank temperature measurement.
This section GB/T 21451 Part 1.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section uses redrafted Law Amendment uses ISO 4266-1.2002 "Petroleum and liquid petroleum product storage tank level and temperature automatically
Measurement - Part 1. atmospheric tank level measurement. "
This part of ISO 4266-1.2002 technical differences and their reasons are as follows.
--- Between paragraph 2 and paragraph 1 a paragraph. "This section applies to level measurement inventory management and custody transfer tanks.",
He stressed for inventory management and custody transfer measurement, consistent with other parts of ISO 4266;
--- On normative references, this part of GB/T 21451 of the technical differences have been adjusted in order to adapt our technology
Condition, adjust the focus reflected in Chapter 2, "Normative references", the specific adjustments are as follows.
• Modify with international standards of GB/T 13236 replaced by ISO 4512.2000 (see 7.2.3);
• increase the reference GB/T 13894 (see 4.3.7,7.2.2).
--- Modify the term "3.5 dipstick" English expressions and definitions to be consistent with GB/T 13236-2011, and the portion of the original definition
NOTE contents as a sub;
--- Modify the definition of the term "3.7 measurement reference point", with the GB/T 13236-2011 consistent;
--- Modify the term "high 3.12 empty" is defined, with the GB/T 13236-2011 consistent;
--- After 6.4.1 add "thereby avoiding or reducing the displacement of the liquid level and temperature changes caused by ALG installation point.", With strong
Of the important role of stabilizing tube;
--- 6.4.4 After the first phrase add "while at the side of the shade or in direct sunlight," to avoid due to the different thermal expansion
error;
--- Modify the order of 2, written in the middle of the section in Figure 2 on the previous Legend, prepared to adapt to the requirements of the standard;
--- 6.5.7 The increase in "illiquid when the oil tank, through grooves or through holes increase the number of columns, the width or diameter, shorten the adjacent
Spaced holes or slots, the oil will be easier to stabilize the free inflow or outflow tubing, thereby ensuring uniform and stable liquid tank liquid level in tube
Sex. "Avoid or reduce the liquid stable density stratification inside and outside of the different effects caused;
--- Increase 6.5.9 "When stable tube installed in the pipe against the manual metering or measurement position of the mouth, sounding reference plate is preferably connected directly to the
The stable liquid pipe, ensure that the installation location ALG relative height measured depth reference plate remains substantially unchanged. "Strengthening sounding board and reference
Stable tube integrated design, to meet the basic requirements for setting up and testing;
--- Will be the 7.2.2 ISO 4512 is amended as GB/T 13894, within the meaning of the content should be level measurement method, rather than level measurement set
Preparation of technical conditions, there is no formal international standards;
--- Add "7.2.5 hydrostatic influence," later in this chapter shall number to be changed accordingly, he stressed sounding reference point, and the measurement reference point
Affect ALG installation point shift their solutions;
--- 7.4.1 Delete the last first test than later, "or" two more than the actual should be carried out with "or" not
Suitable;
--- Will in 7.4.3.2 f) is amended as g), in order to meet the criteria to express the meaning;
--- The first sentence of the first paragraph of 8.4 "for custody transfer with ALG, the difference should be 7.4.3.3 Test as a post test to make tolerance
use. "Was changed to" for custody transfer with ALG, in 7.4.3.3 should test tolerance test tolerance use as a post. "In
In line with the actual situation.
This part made the following editorial changes.
--- 3.4 inject;
--- 3.11 inject;
--- Note 2 increase in 5.2;
--- Remove 5.3 Note 2, 3 becomes Note 2, Note 2 is incorporated Note 1, Note 1 to rewrite the content;
--- Increased 5.3 New Note 3;
--- Note the increase in 5.4.2;
--- Note the increase in 6.4.4;
--- Note the increase in 7.2.3;
--- Increase in 7.3.1,7.3.2,7.4.3.1 Note 2 and 7.4.3.2, respectively;
--- Note the increase in 7.4.3.3;
--- The References ISO 4268.2000 with our standard GB/T 8927-2008 instead of;
--- The reference ISO 7507 (all parts) instead of using our standard GB/T 13235 (all parts);
--- Increasing the GB/T 25964-2010 reference.
This part of the National Standardization Technical Committee on products and lubricant oil (SAC/TC280) and focal points.
This in part by the Chinese Research Institute of Petroleum Corp. petrochemical responsible for drafting, Beijing Great Wall Airlines Swiss tournament CONTROL TECHNOLOGY
Ltd., China Petroleum and Chemical Corporation Beijing Branch of oil, China Petroleum & Chemical Corporation Fujian Branch of oil Senate
Plus draft.
The main drafters of this section. Wei Jinxiang Dong sea breeze, the skullcap, Sun Yan, Zengfan Ming, Chen Hong.
Petroleum and liquid petroleum product storage tank level and
Automatic temperature measurement
Part 1. atmospheric tank level measurement
1 Scope
GB/T 21451 This section gives a storage tank at atmospheric pressure, Reid vapor pressure of less than 100kPa of petroleum and petroleum products level measurement
The accuracy of the amount used in immersion and non-immersion type automatic level gauge, installation, commissioning, calibration and testing guidelines.
This section applies to level measurement inventory management and custody transfer tank.
This section does not apply to installation of automatic level measurement gauge (ALG) frozen tank.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 13236 Petroleum and liquid petroleum product storage tank level measurement equipment manual (GB/T 13236-2011, ISO 4512.
2000, MOD)
GB/T 13894 Petroleum and liquid petroleum products - Measurement of liquid level (manual method)
ISO 1998 (all parts), petroleum industry term (Petroleumindustry-Terminology)
3 Terms and Definitions
As defined in ISO 1998 and the following terms and definitions apply to this document.
3.1
Anchor hammer anchorweight
Hanging in the guide line automatic gauge sensing element, the guide wire tensioning and straightening ballast.
3.2
Automatic level gauge automaticlevelgauge; ALG
Continuous measurement of liquid level in the tank (high real high or empty) instruments.
3.3
Real high dip; innage
Sounding the vertical distance between the reference point and the surface, that sounding reference point above the liquid level in the tank.
3.4
Sounding reference plate dippingdatumplate
Sounding reference point dippingdatumpoint
Sounding board dip-plate
In the measurement reference point directly below the horizontal metal plate to provide a fixed contact surface for the manual measurement of the liquid depth settings.
Related standard:   GB/T 21451.2-2019  GB/T 21451.5-2019
Related PDF sample:   GB/T 21451.2-2019  GB/T 21451.5-2019
   
 
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