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standard gas calibration gas mixtures introduction analysis mixed gas gas cylinder valve materials transportation gas cylinder pressure ≤ evaporation pressure regulator unified data service platform oil processing machinery wooden parts scopethis standard
GB/T 38527-2020 in English

GB/T 38527-2020 in English

VALID

Technologic rules for calibration gas mixtures

  • Issued on:2020-03-06
  • Implemented on:2021-02-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $100.00
$97.00
Standard No: GB/T 38527-2020
Document status: VALID
Title in English: Technologic rules for calibration gas mixtures
Title in Chinese: 校准混合气体技术通则
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2020-03-06
Implemented on: 2021-02-01
Professional Classification: GB-National Standard
Related Keywords: standard gas
calibration gas mixtures introduction analysis
mixed gas
gas cylinder valve materials
transportation gas cylinder pressure ≤
Related Topics: mixed composition
mixed composition
mixed standard gas
mixed standard gas
g5 mixed gas
Multi-gas calibrator
calibration gas
Gas Calibration Box
Calibration Gases vs Calibration Gases
gas technology
gas technology
body technology
mixed gas
gas film technology
gas technology
Heyuan Gas
mixed metal gas
GBT38527
GB/T 38527-2020
Standard gas mixer
Nitrogen gas calibration
Hydrogen gas calibration
Heat sealing machine calibration
mixed gas

《GB/T 38527-2020校准混合气体技术通则》由TC206(全国气体标准化技术委员会)归口,TC206SC1(全国气体标准化技术委员会气体分析分会)执行,主管部门为中国石油和化学工业联合会。


Introduction

Analysis of the core content of the standard

GB/T 38527-2020 specifies the technical requirements for the entire process of calibration mixed gas from preparation to use, with the focus on:

Technical links Key requirements Reference standards
Preparation method 7 dynamic volume methods + weighing method + static volume method GB/T 5274.1-5275.11
Safety control Three-level classification of corrosiveness/flammability/toxicity GB/T 34710.1-3
Packaging and transportation Gas cylinder pressure ≤ nominal working pressure GB/T 34526+TSG23

Key points of preparation technology

Take the preparation of Carbon monoxide standard gas in nitrogen as an example:

  1. Raw material purity analysis: The oxygen content in nitrogen needs to be tested <0.001%
  2. Preparation by weighing method: The relative uncertainty should be <0.5%
  3. Uniformity verification: The difference in detection values under different pressures is <1%

Implementation suggestions

Selection strategies for different application scenarios:

Application scenarios Recommended methods Uncertainty requirements
Environmental monitoring Dynamic permeation method <2%
Metrology verification Weighing method <0.3%
Industrial process control Static volume method <5%

Standard Evolution Analysis

Main improvements compared to the old version of the standard:

  • Three new dynamic preparation methods, including electrochemical generation method, were added
  • Specify that the standard material certificate must comply with the requirements of JJF1186
  • Strengthen the compatibility test requirements for gas cylinder valve materials

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