GB/T 30431-2020 in English

VALID

Gas chromatography for laboratory

Issued on:2020-06-02
Implemented on:2020-12-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $300.00
$291.00

Standard No:	GB/T 30431-2020
Document status:	VALID
Title in English:	Gas chromatography for laboratory
Title in Chinese:	实验室气相色谱仪
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2020-06-02
Implemented on:	2020-12-01
Superseding:	GB/T 30431-2013 Gas Chromatograph for Laboratory
ICS Classification:	17.180.99-Other standards related to optics and optical measurements
Chinese Classification:	N52-chromatograph
Professional Classification:	GB-National Standard
Related Keywords:	changes temperature uniformity temperature gradient temperature uniformity test method optimization -20℃~55℃ temperature cycle test ecd detection limit test uniformity test needs limit safety standard
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《GB/T 30431-2020实验室气相色谱仪》由TC124（全国工业过程测量控制和自动化标准化技术委员会）归口，TC124SC6（全国工业过程测量控制和自动化标准化技术委员会分析仪器分会）执行，主管部门为中国机械工业联合会。

Introduction

Interpretation of the core content of the standard

Technical indicators	GB/T30431-2013	GB/T30431-2020	Explanation of changes
Temperature uniformity	Temperature gradient	Temperature uniformity	Test method optimization, more accurate indicators
Capillary split ratio	Unspecified range	5:1~100:1	New specific technical requirements
Safety requirements	Contact current 0.5mA	Add fault condition 3.5mA limit	Safety standard upgrade

Key indicators of detector system

The standard puts forward clear performance requirements for five detectors, including TCD and FID:

TCD detection limit: ≤0.2mV (noise), sensitivity ≥2000mV·mL/mg
FID linear range: ≥10⁶, better than ECD's 10³
Start-up time: TCD/ECD≤4h, FID/FPD/NPD≤2h

Implementation suggestions

Key points of acceptance test:

The column box temperature uniformity test needs to arrange 5 temperature measurement points according to the standard diagram
The ECD detection limit test must use γ-666/isooctane standard solution
The transportation test needs to include a -20℃~55℃ temperature cycle test

More samples: JC/T 2453-2018 QC/T 942-2021 YD/T 3934-2021

Sample only — not a preview of GB/T 30431-2020

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