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GB/T 4756-2015: Method for manual sampling of petroleum liquids
Status: Valid GB/T 4756: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4756-2015 | English | 1239 |
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Method for manual sampling of petroleum liquids
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GB/T 4756-2015
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| GB/T 4756-1998 | English | RFQ |
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Petroleum liquids. Manual sampling
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GB/T 4756-1998
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| GB/T 4756-1984 | English | RFQ |
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Petroleum and its liquid products--Manual sampling
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GB/T 4756-1984
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PDF similar to GB/T 4756-2015
Basic data | Standard ID | GB/T 4756-2015 (GB/T4756-2015) | | Description (Translated English) | Method for manual sampling of petroleum liquids | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E30 | | Classification of International Standard | 75.080 | | Word Count Estimation | 59,558 | | Date of Issue | 2015-12-31 | | Date of Implementation | 2016-06-01 | | Older Standard (superseded by this standard) | GB/T 4756-1998 | | Quoted Standard | GB/T 2828.1-2012; GB/T 8929; GB/T 11146; GB/T 27867; ISO 1998-1; ISO 1998-2; ISO 1998-3; ISO 1998-4;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 3170-2004, MOD | | Regulation (derived from) | State Standard Announcement 2015 No.43 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies a manual sampling method for the collection of liquid or semi-liquid hydrocarbons, tank residues and sediment samples from fixed tanks, rail tankers, tankers, ships, buckets, listening, pumping liquid lines or tankers. This standard is applicable to the sampling of petroleum products, crude oil and intermediate products which are stored in the tank at atmospheric pressure or near normal pressure or transported by pipelines and stored and transported in the range of normal temperature to 200 �� in liquid form. This standard does not apply to the sampling of special petroleum products belonging to other standard subjects such as electrical insulating oil (IEC 60475), liquefied petroleum gas (SH/T 0233), liquefied natural gas (GB/T 20603) and gaseous natural gas (GB/T 13609). This standard covers the existing sampling methods and the type of equipment being used | GB/T 4756-2015: Method for manual sampling of petroleum liquids---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Method for manual sampling of petroleum liquids
ICS 75.080
E30
National Standards of People's Republic of China
Replacing GB/T 4756-1998
Petroleum liquid manual sampling method
(ISO 3170.2004, Petroleumliquids-Manualsampling, MOD)
Issued on. 2015-12-31
2016-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
Introduction Ⅴ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Principle 5
5 device 6
5.1 General 6
5.2 Tank sampler 6
5.3 barrel heard like 20
5.4 Pipeline Sampler 21
5.5 sample receiver and the sample container 21
5.6 container closure 23
5.7 sample cooler 23
6 Safety Precautions 23
7 uniform sampling of petroleum liquids 23
7.1 Introduction 23
7.2 Preventive Measures 24
7.3 sampling tank 26
7.4 sampling line 30
7.5 tanker (oil gun) sampling 34
8 samples of crude oil and other petroleum liquids uneven 34
8.1 General 34
8.2 Method 35
9 Sample deployment 36
9.1 General 36
9.2 of 37 samples were
9.3 check the effect of stirring 38
40 9.4 Sample Transfer
Sampling 10 tank residues/deposits 40
Sampling 40 11 Packaging
11.1 Packaging sampling statistical point of view 40
11.2 Packaging sampling 44
Appendix A (informative) Safety precautions Guide 45
Annex B (informative) commercial tanker manual sampling 47
Annex C (informative) collected samples of petrol and oil gun use extension tube 49
References 51
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 4756-1998 "petroleum liquid manual sampling method", compared with the GB/T 4756-1998, the main technical change
as follows.
--- Increase in the range from fuel oil gun manual sampling the contents (see Chapter 1, 1998 version 1.1);
--- Expand the scope of products to be sampled will be sampled product in liquid form to upper temperature limit of 100 ℃ storage by modifying the
200 ℃, removed about product RVP regulations (see Chapter 1, 1998 version 1.2);
--- Streamlining the contents of the range, the composition of which remove manual sampling methods, provisions to reduce or eliminate loss of light components tips sampling
The method of using undue influence, and a statement of the purpose of sampling to determine the criteria contained in the liquid level is uneven, collection methods sediments
(See Chapter 1, 1998 edition of 1.3,1.4,1.5,1.6,1.7 and 1.8);
--- Increasing the GB/T 2828.1-2012, GB/T 11146, GB/T 27867 and ISO 1998 (all parts) as a normative reference
File, delete the GB/T 1884, GB/T 6533 (see Chapter 2);
--- Delete the terms and definitions of the "competent person", "pipeline", "Packaging", "dissolved water" and "free water" totaling five terms (see
1998 edition 3.1,3.4,3.9.3,3.11.1 and 3.11.3);
--- Increase "autosampler" in the terminology and definitions, the term "bottom water samples", "closed sampling", "bowl-like", "drain-like", "floating roof-like", "fat
Class-like "," open sampling "," portable sampling device, "" limited sampling "and" measures to control "," sewage pond-like "," side pot-like "," test
Kind "," steam stop valve "and" sample interval "total 16 terms (see 3.3,3.6,3.7,3.9,3.10,3.11,3.12,3.17,3.19,
3.22,3.30,3.32,3.34,3.35,3.40 and 3.41);
--- Added "restricted and closed system sampler" and instructions (see 5.2.7) in the device;
--- Added "variable volume sample receiver" and instructions (see 5.5) in the device;
--- Increase the liquid depth corresponding to the minimum number of sample points (Table 1) (see 7.1) in a homogeneous liquid petroleum sampling methods;
--- Increasing the stop valve installed vapor tank sampling (see 7.3.1.4) in a homogeneous liquid petroleum sampling methods;
--- Increasing the pressure tank with a sampling valve sampling point (see 7.3.1.5) in a homogeneous liquid petroleum sampling methods;
--- Uniform petroleum liquid sampling methods to revise and improve the manual sampling line, it provides a high vapor pressure liquid sampling point
Three methods and sample deployment methods (see 7.4,1998 version 7.5);
--- Increased tanker (oil gun) sampling method (see 7.5) in a homogeneous liquid petroleum sampling methods;
--- Increasing the sampling line content (see 8.2.2) in crude oil and other liquid non-uniform sampling method;
--- Revise and improve the method of homogenizing the sample, increasing the sample receiving type and homogenization temperature rise limits, improve the mixing effect
Test methods and decision indicators (see 9.2);
--- Modify the structure of the standard preparation of the sample tank residues/sediments as a special chapter (see Chapter 10, 1998 edition
7.3.5);
--- Modify the structure of the standard preparation of the package alone as a sample chapter (see Chapter 11, 1998 version 7.4).
This standard uses redrafted law revision using ISO 3170.2004 "Liquid petroleum manual sampling method."
This standard and ISO 3170.2004 technical differences and their reasons are as follows.
--- Increase the sample from the refueling gun oil content in the range of the first paragraph, this standard specifies explicitly be taken from the fuel oil gun
Such methods;
--- For the scope of paragraph 3 related to international standards of other special oil sampling, where there are the corresponding national standards and industry standards, are
Adjusted accordingly, in order to facilitate the use of standard user with "SH/T 0233" instead of "ISO 4257"; with
"GB/T 20603" instead of "ISO 8943"; with "GB/T 13609" instead of "ISO 10715";
Love --- on normative references, this standard has been adjusted technical differences, in order to adapt to China's technical conditions, adjustment
Focus is reflected in the status of Chapter 2, "Normative references", the specific adjustments are as follows.
● equivalents adoption of international standards GB/T 2828.1-2012 instead of ISO 2859-1.1999 (see Chapter 11);
● equivalents adoption of international standards GB/T 27867 replaced by ISO 3171. 1988 (see 4.3,5.4 and Chapter 8);
● increase cited GB/T 8929 and GB/T 11146 (see Chapter 9).
--- Cancellation 7.3.1.1.7 paragraph 4, as part of the contents of this section and related content are contradictory, but in its next stage before "certain cases
Row sampler shall viscosity liquid depth and adjust the size of the oil-filled pores limit, then the routine samples collected operational requirements. "In order to protect
Useful stay delete content segment;
--- For tankers constructed by a plurality of compartments, increase the sample compartment contents of the selected rule in 7.3.2.1, a user-friendly in the impossible
All cabins case of sampling, scientific sampling to determine the minimum number of compartments, but not so excessive downsampling behalf
Table sex;
--- Cancellation contents of the original 7.4.1, 7.4.1 will be headlined by "non-uniform liquid" to "General", and section 7.4 of the suspension as
7.4.1 content to suit the requirements of the preparation of standards;
--- Uniform liquid line manual sampling, for the transfer of bulk oil pipeline, increasing the number of samples and press oil press oil
Sampling between the technical content (see 7.4.2), an increase of manual sampling pipeline operability;
--- In the last increase of 7.5 "detailed information on commercial fuel oil sampling gun can be found in Appendices B and C.", and further fine
Sampling of tanker technical content reinforcing tanker sampling operability;
--- For bulk transfer of crude oil by pipeline and other petroleum liquids unevenly, increasing the pipeline when using manual sampling sampling equipment
Selection, installation and operation of the measures to be taken on the sample (see 8.2.2.1), thereby maximizing oil and other non
Uniform oil pipeline manually sampled representation;
--- The 9.3.4.12 changed to "mixing system for testing, measuring water content should not go by centrifugation.", In order to adapt our standards
Preparation requirements;
--- Delete all "patents" related terms, to comply with the requirements of the standard preparation;
--- Remove all pressure data in brackets behind the bar units represented by the contents of the units of measurement in line with our habits.
The editorial changes made the following standard.
--- Delete the note range, with "NOTE. This standard may also apply to most non-corrosive liquid chemical products sampling, but it should be strictly
These liquid chemical products comply with the corresponding security measures. "instead;
--- Increase under the term "acceptable quality level of 3.1" is defined as "Note. This standard is equivalent to the acceptable quality level
GB/T 2828.1-2012 reception quality limit. ";
--- Increase the informative Appendix B, gives a commercial tanker specific sampling method;
--- Increase the informative appendix C, provides the technical requirements and methods of use of the gasoline samples collected oil gun elongated tube;
--- In the literature, where there is a corresponding international standards our standards, modifications to our standards.
Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents.
This standard by the National Standardization Technical Committee on products and lubricant oil (SAC/TC280) proposed.
This standard by the National Petroleum products Petroleum measurement of static and light hydrocarbons and lubricants Technical Committee of Standardization Technical Committee (SAC /
TC280/SC2) centralized.
The standard by the China Research Institute of Petroleum Corp. petrochemical responsible for drafting, China Petroleum & Chemical Corporation
Luoyang Petrochemical Engineering Company participated in the drafting.
The main drafters of this standard. Wei Jinxiang, Liu Fengyang.
This standard was first released in November 1984, in June 1998 the first amendment, this is the second revision.
Introduction
This standard is intended to standardize the reservoir container or oil pipelines in liquid/semi-liquid hydrocarbon manual sampling. If the hydrocarbon sampling
Having a non-uniform properties, showed the presence of significantly different in composition, or contain sediment and water samples are collected by hand may not have
Representative, but non-uniform thereby assess the extent and calculated mass numbers.
The method specified in this standard can reduce and eliminate the loss of light components in the sample. This loss can occur in the deployment or transfer of the sample
Between, thus the sample is not representative of the bulk oil.
This standard is intended to provide samples of the following purposes.
a) to determine the parameters of liquid/hydrocarbons;
b) determining the water content;
c) identify other impurities do not belong to the transfer of liquids.
If used in a), b), c) the sampling method for three purposes conflicting, it would take were collected with a suitable sample.
Uneven liquid sampling methods specified in this standard can be used to assess the degree of unevenness, and count the number of quality.
This standard also includes a gas tank under pressure of an inert liquid hydrocarbon tanks with vapor sampling method and system to take control of volatile
Inject.
This standard can be used with the GB/T 27867 combination "petroleum liquids pipeline automatic sampling."
Petroleum liquid manual sampling method
1 Scope
This standard specifies from fixed tanks, rail tank cars, tank cars, ships, barrels, listen, pumped liquid pipelines or refueling gun oil or liquid collection
Semi-liquid hydrocarbons, tank residues and sediment samples manual sampling method.
This standard applies to storage at or near atmospheric tank or pipeline transportation, in the range of room temperature to 200 ℃ in liquid form
Type storage and transportation of petroleum products, crude oil and intermediate products sampled.
This standard does not apply to objects belonging to other Standard sampling of special petroleum products, such as electrical insulating oils (IEC 60475), liquefied
LPG (SH/T 0233), liquefied natural gas (GB/T 20603) and gaseous natural gas (GB/T 13609).
This standard includes existing sampling methods and the type of equipment being used. For the subsequent emergence of new equipment, as long as in accordance with this standard
Requirements and methods of sampling, it can also be used in the present standard.
NOTE. This standard may also apply to most non-corrosive sampling liquid chemical products, but should strictly observe liquid chemical products corresponding security measures.
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 2828.1-2012 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch test sample
Programme (ISO 2859-1.1999, IDT)
GB/T 8929 Determination of water content of crude oil distillation method (GB/T 8929-2006, ISO 9029.1990, MOD)
GB/T 11146 Determination of water content of crude oil Karl Fischer coulometric titration method (GB/T 11146-2009, ISO 10337.1997,
MOD)
GB/T 27867 liquid petroleum pipeline automatic sampling method (GB/T 27867-2011, ISO 3171. 1988, IDT)
ISO 1998 (all parts), petroleum industry term (Petroleumindustry-Terminology)
3 Terms and Definitions
ISO 1998 (all parts), and the definition of the following terms and definitions apply to this document. For ease of use, repeat the following list
ISO 1998 (all parts) of certain terms and definitions.
3.1
Acceptable Quality Level acceptablequalitylevel; AQL
The maximum defective percent (or the maximum number of defects per one hundred products). When used for sampling and testing, the maximum percentage as a defective
Averaging satisfactory results are obtained.
NOTE. The standard acceptable level of quality equivalent to the GB/T 2828.1-2012 acceptance quality limit.
3.2
Full Layer Sample al-levelssample
Sampler in one direction only through the entire height of the liquid in addition to the free water accumulation during sample fluid samples obtained through.
3.3
Autosampler automaticsampler
The liquid flowing from the pipeline automatic extraction means a representative sample to be used.
NOTE. autosampler tubes usually by a sample, taking the sample, a joint controller, flow measurement device and a sample receiver.
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