GB/T 35995-2018 in English

VALID

Carbon monoxide

Issued on:2018-03-15
Implemented on:2018-10-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $220.00
$214.00

Standard No:	GB/T 35995-2018
Document status:	VALID
Superseded by:	GB/T 35995-2026 Carbon monoxide
Superseded on:	2027-02-01
Title in English:	Carbon monoxide
Title in Chinese:	一氧化碳
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2018-03-15
Implemented on:	2018-10-01
ICS Classification:	71.100.20-Gases for industrial application
Chinese Classification:	G86-Industrial gas and chemical gas
Professional Classification:	GB-National Standard
Related Keywords:	35995-2018 carbon monoxide carbon monoxide carbon monoxide introduction interpretation % carbon monoxide domestic carbon monoxide product standardization
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《GB/T 35995-2018一氧化碳》由TC206（全国气体标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。

Introduction

Interpretation of GB/T 35995-2018 National Standard of the People's Republic of China

GB/T 35995-2018 Carbon Monoxide is a standard formulated for the technical requirements, inspection rules and safety specifications of carbon monoxide in the industrial and scientific research fields, aiming to ensure product quality and guarantee safety in use. This article will conduct a comprehensive analysis from the aspects of standard framework comparison, technical requirements analysis, and detection method interpretation, and put forward implementation suggestions.

1. Comparison of standard frameworks

Standard dimensions	GB/T 35995—2018	International comparison	Industry reference
Technical indicators	Purity range: 99.0%~99.998%	ISO 16732-1: 99.5%~99.9%	N/A
Impurity control	Impurity content such as hydrogen and oxygen ≤500 ppm	ASTM D1287: ≤1000 ppm	N/A
Detection method	Gas chromatography (GB/T 8984) + electrolysis (GB/T 5832.1)	NIST CRM 86A: Chromatographic analysis	N/A
Safety requirements	Explosion limit range: 12.5%~74.2%	UN/SCC 899-2: 10%~60%	N/A

II. Interpretation of technical requirements

Carbon monoxide purity level:

99.0%: Suitable for general industrial use
99.5%: Suitable for metallurgical industry with higher requirements
99.99%: Suitable for scientific research and standard sample preparation
99.998%: Suitable for ultra-pure application fields

Impurity control focus:

Hydrogen content (H₂) ≤500 ppm
Oxygen + Argon (O₂+Ar) ≤200 ppm
Nitrogen (N₂) ≤10 ppm

III. Detection method and test steps

Detection principle:

Impurity components are separated by thermal conductivity detector gas chromatography (TCD)
The content of each impurity is quantitatively analyzed by external standard method

Actual application case:

A company used a gas chromatograph (with TCD) to detect 99.5% carbon monoxide. The results showed that the H₂ content was 300 ppm and the O₂+Ar content was 120 ppm. According to standard requirements, further dilution or purification is required to achieve a higher purity level.

IV. Implementation Suggestions

Enterprise level:

Establish an internal quality control system to ensure that each batch of products meets the requirements of GB/T 35995
Regularly calibrate the testing equipment to improve the measurement accuracy

Safety measures:

Equipped with a carbon monoxide alarm device to monitor the gas concentration in the working environment
Operators must wear personal protective equipment and receive relevant training

Packaging and transportation:

Prioritize the use of aluminum alloy cylinders, and strictly control the filling pressure ≤ 50% of the nominal working pressure
Store in a cool and ventilated place, away from fire and oxidants

V. Standard significance and future development

GB/T The formulation of 35995-2018 fills the gap in the field of domestic carbon monoxide product standardization and provides a scientific basis for product quality control. With the development of industrial technology, the standard may be further optimized in terms of purity level and detection method in the future to meet the needs of higher precision and advanced fields.

More samples: JC/T 2453-2018 JGJ 94-2008 GB 18306-2015

Sample only — not a preview of GB/T 35995-2018

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