ICS

75.180.30

CCS

E30

中華人民共和國國家標準

GB/T45373—2025

石油和液體石油產品罐內密度直接

測量諧振筒密度計法

Petroleumandliquidpetroleumproducts—Directmeasurementofdensityin

tanks—Resonancecylinderdensitometermethods

2025-02-28發布2025-09-01實施

國家市場監督管理總局發布

國家標準化管理委員會

GB/T45373—2025

目次

前言

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Ⅲ

1

范圍

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1

2

規范性引用文件

······················································································

1

3

術語和定義

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1

4

原理

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3

5

保障措施

······························································································

3

5.1

安全保障

·························································································

3

5.2

準確度保障

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4

6

便攜式電子密度計（PED）

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5

6.1

通用要求

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5

6.2

準確度和分辨力

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5

6.3

PED的選用

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6

7

油罐自動密度計（ATD）

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8

7.1

通則

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8

7.2

準確度

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8

7.3

設備選型

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9

7.4

安裝與使用

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10

7.5

校準和現場檢驗

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11

7.6

數據傳輸

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13

8

測量方法

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13

8.1

通用要求

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13

8.2

立式罐

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13

8.3

臥式圓筒罐

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14

8.4

鐵路罐車和汽車罐車

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14

8.5

油船艙

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14

9

讀數、計算與報告

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14

參考文獻

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16

Ⅰ

GB/T45373—2025

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結構和起草規則》的規

定起草。

請注意本文件的某些內容可能涉及專利。本文件的發布機構不承擔識別專利的責任。

本文件由全國石油產品和潤滑劑標準化技術委員會（SAC/TC280）提出并歸口。

本文件起草單位：中石化石油化工科學研究院有限公司、中國石化銷售股份有限公司浙江石油分公

司、中國石油化工股份有限公司鎮海煉化分公司、中國檢驗認證集團山東有限公司、青島澳邦量器有限

責任公司、北京均友欣業科技有限公司、北京瑞賽長城航空測控技術有限公司。

本文件主要起草人：魏進祥、孫巖、曹磊、滕志芳、劉沖偉、張善友、范明軍、張勁廣。

Ⅲ

GB/T45373—2025

石油和液體石油產品罐內密度直接

測量諧振筒密度計法

1范圍

本文件規定了通過諧振筒密度計直接測量罐內油品密度對準確度、測量條件和測量方法的一般要

求，并按便攜式電子密度計和油罐自動密度計兩種設備形式規定了測量步驟和/或安裝要求以及校準和

檢驗方法。

本文件適用于常壓罐內雷德蒸氣壓小于100kPa并具有足夠流動性的單相液體石油及其產品，其他

符合要求的類似產品參照執行。

本文件適用于在庫存和交接計量中測量密度。

本文件不適用于在帶壓罐和冷凍罐內測量密度。

注1：對可測量密度的多功能電子計量裝置，當基于諧振筒密度計的相同原理時，密度測量部分等同于諧振筒

密度計。

注2：諧振筒密度計一般適用于未結蠟的低黏度液體石油產品，對于黏稠的液體原油和石油產品，如原油、潤滑油

和殘渣燃料油等，可能難以使用。制造商通常在使用手冊上給出了其適用液體的最大黏度。

2規范性引用文件

下列文件中的內容通過文中的規范性引用而構成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用

于本文件。

GB/T1884原油和液體石油產品密度實驗室測定法（密度計法）

GB/T1885石油計量表

GB/T475