US$354.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 45856-2025: Vacuum technology - Vacuum gauges - Specifications, calibration and measurement uncertainties for Pirani gauges
Status: Valid
| Standard ID | USD | BUY PDF | Lead-Days | Standard Title (Description) | Status |
| GB/T 45856-2025 | 354 |
Add to Cart
|
4 days
|
Vacuum technology - Vacuum gauges - Specifications, calibration and measurement uncertainties for Pirani gauges
| Valid |
Basic data
Standard ID: GB/T 45856-2025 (GB/T45856-2025)
Description (Translated English): Vacuum technology - Vacuum gauges - Specifications, calibration and measurement uncertainties for Pirani gauges
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J78
Classification of International Standard: 23.160
Word Count Estimation: 18,170
Date of Issue: 2025-08-01
Date of Implementation: 2025-11-01
Issuing agency(ies): State Administration for Market Regulation, Standardization Administration of China
GB/T 45856-2025: Vacuum technology - Vacuum gauges - Specifications, calibration and measurement uncertainties for Pirani gauges
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT45856-2025
ICS 23.160
CCSJ78
National Standard of the People's Republic of China
Vacuum technology vacuum gauge Pirani vacuum gauge
Specifications, calibration and measurement uncertainty
(ISO 19685.2017, IDT)
Released on August 1, 2025
Implementation on November 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
3.1 Component Definition 1
3.2 Physical parameter definition 2
4 Symbols and abbreviations 3
5 Pirani vacuum gauge principle 3
6 Pirani vacuum gauge specifications 4
6.1 General Principles 4
6.2 Measurement Principle 4
6.3 Output Type 4
6.4 Output Range and Output Display Resolution 4
6.5 Measuring range and full scale 4
6.6 Expected measurement uncertainty 4
6.7 Materials exposed to gases 5
6.8 Connecting flange 5
6.9 Interface and Pin Connection 5
6.10 Warm-up time 5
6.11 Compatibility of vacuum gauge tube and control unit 5
6.12 Normal operating (environmental) conditions 5
6.13 Power Supply 5
6.14 Cable length 5
6.15 Maximum baking temperature 5
6.16 Dimensions of the regulator and control unit 5
6.17 Installation Direction 5
7 Additional (optional) specifications for Pirani vacuum gauges 5
7.1 Long-term instability 5
7.2 Relative sensitivity coefficient 6
7.3 Hysteresis 6
7.4 Response Time 6
7.5 Inspection records and calibration certificates 6
7.6 Configuration 6
7.7 Quality 6
7.8 Storage and transportation conditions 6
7.9 Photos 6
7.10 Maximum power consumption 6
7.11 Pressure set point 6
8 Calibration and other measurement steps 6
8.1 General 6
8.2 Calibration conditions 7
8.3 Installation and adjustment of calibration objects 7
8.4 Calibration 7
8.5 Measurement uncertainty during calibration 7
8.6 Calibration Certificate 8
8.7 Hysteresis Measurement Procedure 8
8.8 Response time measurement procedure 8
9 Measurement uncertainty in use 9
Appendix A (Informative) Typical Pirani Vacuum Gauges 10
Reference 11
Preface
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document is equivalent to ISO 19685.2017 "Vacuum technology - Vacuum gauges - Specifications, calibration and measurement uncertainty of Pirani gauges".
Spend".
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee on Vacuum Technology Standardization (SAC/TC18).
This document was drafted by. Lanzhou Institute of Space Technology Physics, Shanghai Institute of Basic Research of Space Technology, Shenyang Huizhen Vacuum Technology Co., Ltd.
Co., Ltd., Zibo Metrology Technology Research Institute, Hunan Weige Magnetic Fluid Co., Ltd., Anhui Wanyi Technology Co., Ltd., Zhejiang Weihang Vacuum
Technology Co., Ltd., China National Nuclear Corporation Seventh Research and Design Institute Co., Ltd., Xiangtan Hongda Vacuum Technology Co., Ltd., Shandong Jingrui Metrology and Testing Co., Ltd.
Co., Ltd., Shandong Mudong Vacuum Technology Co., Ltd., Ma Debao Vacuum Equipment Group Co., Ltd., Suzhou Chuhan Vacuum Technology Co., Ltd., Shenyang
Vacuum Technology Research Institute Co., Ltd.
The main drafters of this document are. Cheng Yongjun, Weng Jun, Zhao Lan, Sun Wenjun, Shen Huifeng, Dong Meng, Yu Haibao, Song Qingzhu, Song Jian, Song Xinyang,
Yan Jichun, Wang Gongfa, Wang Guodong, Huang Wenping, Lin Gangzhi, Li Zhengming, Wang Zisheng, Huang Le, Ren Huiming, Zhang Zhining, Li Changdong, Wang Yuxiang,
Zhang Baofu, Liu Hongxing, Chen Lian, Zhang Ruifang, Sun Donghua, Zong Suchen, and Wang Lingling.
introduction
For specific vacuum gauges for which no specific guidelines exist, ISO 3567 and ISO 27893 are used as basic standards and are also commonly used.
Detailed criteria for specific vacuum gauges will be given in subsequent technical documents.
This document is an extension of ISO 3567 and ISO 27893 when characterizing or calibrating Pirani vacuum gauges, or when using them as standard vacuum gauges.
Replenish.
Pirani vacuum gauges are widely used to measure medium vacuum pressure to atmospheric pressure. This document describes the Pirani vacuum gauges used to measure medium and low vacuum pressure.
Relevant parameters, calibration criteria and uncertainties for force and transmitted pressure range.
Vacuum technology vacuum gauge Pirani vacuum gauge
Specifications, calibration and measurement uncertainty
1 Scope
This document establishes the parameters of Pirani vacuum gauges, describes their calibration procedure, and specifies the measurement inconsistencies to be considered when using these gauges.
Certainty.
This document applies to Pirani vacuum gauges with an operating pressure range of 0.01Pa~150kPa.
This document supplements ISO 3567 and ISO 27893 when calibrating Pirani vacuum gauges and using them as reference standards.
Additionally, this document describes a method for characterizing the response time and hysteresis of Pirani vacuum gauges.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
with a reference gauge)
Note. GB/T 34873-2017 Vacuum gauge calibration by direct comparison with a standard vacuum gauge (ISO 3567.2011, IDT)
ISO 27893 Vacuum technology - Evaluation of the uncertainty of calibration results by direct comparison of vacuum gauges with standard vacuum gauges
Note. GB/T 34876-2017 Vacuum technology Vacuum gauge and standard vacuum gauge direct comparison calibration results uncertainty assessment (ISO 27893.2011,
IDT)
Note. GB/T 27025-2019 General requirements for the competence of testing and calibration laboratories (ISO /IEC 17025.2017, IDT)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Component Definition
3.1.1
A vacuum gauge that determines pressure by measuring the heat transfer between two fixed surfaces maintained at different temperatures.
NOTE. This type of vacuum gauge depends on the pressure-dependent heat conduction of the gas.
[Source. ISO 3529-3.2014, 2.4.2.2, modified – examples deleted]
3.1.2
Pirani vacuum gauge Piranigauge
The heating element is part of a Wheatstone bridge circuit, which provides energy to the element and measures the resistance or power dissipated by the element.
......
Tips & Frequently Asked Questions:
Question 1: How long will the true-PDF of GB/T 45856-2025_English be delivered?
Answer: Upon your order, we will start to translate GB/T 45856-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.
Question 2: Can I share the purchased PDF of GB/T 45856-2025_English with my colleagues?
Answer: Yes. The purchased PDF of GB/T 45856-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.
Question 3: Does the price include tax/VAT?
Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs):
List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?
Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
