ISO 12917-2:2002 PDF

Petroleum and liquid petroleum products — Calibration of horizontal cylindrical tanks — Part 2: Internal electro-optical distance-ranging method

Название (английский):

ISO 12917-2:2002

Petroleum and liquid petroleum products — Calibration of horizontal cylindrical tanks — Part 2: Internal electro-optical distance-ranging method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 14
Дата публикации:: 3 октября 2002 г.
Издание:: ISO IS 12917 edition 1 version 1
ICS:: 75.180.30

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Описание (английский):

ISO 12917-2:2002 specifies a method for the calibration of horizontal cylindrical tanks having diameters greater than 2 m by means of internal measurements using an electro-optical distance-ranging instrument, and for the subsequent compilation of tank-capacity tables. This method is known as the internal electro-optical distance-ranging (EODR) method. ISO 12917-2:2002 is applicable to tanks inclined by up to 10 % from the horizontal, provided a correction is applied for the measured tilt.

Технические детали

Технический комитет: ISO/TC 28/SC 2 - Measurement of petroleum and related products
SKU: ISO 12917-2:2002

Abstract

Overview

ISO 12917-2:2002 specifies the internal electro-optical distance-ranging (EODR) method for calibration of horizontal cylindrical tanks used for petroleum and liquid petroleum products. It applies to tanks with diameters greater than 2 m and covers internal measurement procedures, equipment requirements, data recording and the compilation of tank-capacity tables. The method is applicable to tanks inclined up to 10 % from horizontal (with a correction for measured tilt).

Key topics and technical requirements

Measurement method: Internal electro-optical distance-ranging (EODR) using an electro-optical distance-ranging instrument to record slope distance, horizontal and vertical angles to target points.
Equipment specifications:
- Angle measurement: resolution/gradation ≤ 0.002 gon; repeatability ≤ ±0.005 gon.
- Distance measurement: resolution ≤ ±1 mm; repeatability ≤ ±2 mm.
- Low-power laser emitter compliant with IEC 60825-1 for target positioning.
- Stadia bar (typically 2 m) with dimensional stability within ±0.02 mm.
- Stable tripod and auxiliary steadying devices (e.g., magnetic bearers).
Target point selection:
- No target points within 300 mm of weld seams or stiffeners.
- Cylindrical courses: minimum 16 points per course for tanks

Overview

Key topics and technical requirements

Measurement method: Internal electro-optical distance-ranging (EODR) using an electro-optical distance-ranging instrument to record slope distance, horizontal and vertical angles to target points.
Equipment specifications:
- Angle measurement: resolution/gradation ≤ 0.002 gon; repeatability ≤ ±0.005 gon.
- Distance measurement: resolution ≤ ±1 mm; repeatability ≤ ±2 mm.
- Low-power laser emitter compliant with IEC 60825-1 for target positioning.
- Stadia bar (typically 2 m) with dimensional stability within ±0.02 mm.
- Stable tripod and auxiliary steadying devices (e.g., magnetic bearers).
Target point selection:
- No target points within 300 mm of weld seams or stiffeners.
- Cylindrical courses: minimum 16 points per course for tanks

ISO 12917-2:2002 PDF

Технические детали

Abstract

Overview

Key topics and technical requirements

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Abstract

Overview

Key topics and technical requirements

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