SIST ISO 4269:2006 PDF

Name: SIST ISO 4269:2006 — Petroleum and liquid petroleum products -- Tank calibration by liquid measurement -- Incremental method using volumetric meters
SKU: SIST ISO 4269:2006
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Petroleum and liquid petroleum products -- Tank calibration by liquid measurement -- Incremental method using volumetric meters

Название (английский):

SIST ISO 4269:2006

Petroleum and liquid petroleum products -- Tank calibration by liquid measurement -- Incremental method using volumetric meters

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 31
Дата публикации:: 1 февраля 2006 г.
ICS:: 75.180.30
Технический комитет:: NAD - Petroleum products, lubricants and related products

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Описание (английский):

This International Standard specifies a method for the calibration of tanks by addition of batches of liquid. The liquid is used as a volume-transfer medium, measured accurately by means of a meter. This International Standard is not applicable to the calibration of reference measuring instruments, proving tanks, or meter provers. NOTE Applicable standards are given in the bibliography.

Abstract

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Overview

ISO 4269:2001 specifies an incremental tank calibration method using volumetric meters for petroleum and liquid petroleum products. The method calibrates tank capacity by adding successive batches of liquid (water or suitable petroleum product) as a volume-transfer medium, with the delivered volume measured accurately by a volumetric meter. This International Standard is intended for practical field calibration of storage tanks, not for calibrating reference measuring instruments, proving tanks, or meter provers.

Key topics and requirements

Method: Incremental (batch) filling of tanks with liquid measured by a volumetric meter to produce tank capacity tables.

Meter types: Positive displacement or turbine meters only; meters with temperature compensators are excluded.

Meter performance:

Meter factor or K-factor curve required for the liquid, viscosity and temperature ranges used.
Positive displacement meters: factor must not deviate by more than ±0.20% between 10% and 100% of rated flow.
Turbine meters: K-factor must not deviate by more than ±0.20% over 10–100% flow; a back pressure >100 kPa gauge is recommended to prevent cavitation.
Proving repeatability: five consecutive proving runs within ±0.025% of the average after corrections.

Ancillary equipment and layout: thermowell adjacent to the meter, air/vapour separator, flow limiter, pre-set or shut‑off device, pressure gauge(s), strainer, surge suppressor, syphon breaker, weir and viewing glass where applicable.

Safety and precautions: control of ignition sources, bonding of hoses, control of pumping speeds, prevention of free fall/splashing, and keeping liquid velocity low (document advises maintaining line velocity below ~1 m/s until filling pipe submerged). Avoid air ingress; fill lines and meter prior to calibration.

Corrections and calculations: guidance on temperature corrections (Annex A), corrections to observed volumes, calculation requirements for tank capacity tables and data recording (Annex B informational).

Applications and users

ISO 4269 is used for accurate calibration of storage tanks with irregular shapes, tanks with complex bottoms, small horizontal cylinders, and ship/barge tanks. Typical users include:

Tank farm operators and terminal engineers

Calibration and metrology laboratories

Petroleum distribution and retail site operators

Meter manufacturers and service providers

Regulatory/inspection bodies overseeing custody or inventory measurement

This standard supports reliable inventory control, custody transfer accuracy and verification of tank volume tables used in petroleum handling operations.

Related standards

Standards referenced in ISO 4269 include: ISO 7507 series (tank calibration/strapping), ISO 2714/2715 (meter systems), ISO 4268 (temperature measurement), ISO 91 petroleum measurement tables, ISO 9770 (compressibility), and IEC 60079-10 (hazardous areas). These documents provide complementary requirements for meter proving, temperature/pressure correction and safety.

SIST ISO 4269:2006 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

ISO 4269:2001

Petroleum and liquid petroleum products — Tank calibration by liquid measurement — Incremental method using v…

SIST ISO 7507-2:2023

Petroleum and liquid petroleum products - Calibration of vertical cylindrical tanks - Part 2: Optical-referen…

ISO 4268:2000

Petroleum and liquid petroleum products — Temperature measurements — Manual methods

ISO 9:1995/Amd 1:2024

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ISO 9770:1989

Crude petroleum and petroleum products — Compressibility factors for hydrocarbons in the range 638 kg/m3 to 1…

IEC 60079-10-1:2015/COR1:2015

Corrigendum 1 - Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres