GB/T 13277.9-2022 in English

VALID

Compressed air—Part 9：Test methods for liquid water content

Issued on:2022-12-30
Implemented on:2022-12-30
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $220.00
$214.00

Standard No:	GB/T 13277.9-2022
Document status:	VALID
Title in English:	Compressed air—Part 9：Test methods for liquid water content
Title in Chinese:	压缩空气第9部分：液态水含量测量方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-12-30
Implemented on:	2022-12-30
ICS Classification:	23.140-Compressors and pneumatic machines
Professional Classification:	GB-National Standard
Related Keywords:	liquid water content measurement method liquid water content liquid water content introduction liquid water compressed air
Related Topics:	liquid water content liquid water content water content liquid water content liquid Content linear several 9 Classification of liquid water standard liquid water content Air voc+ content air voc content vocair content air voc content compressed air Air content in liquid liquid stratified content Vapor measurement method Air content of various gases How to detect compressed air Air content test method in water air content in water Content measurement Trace water content in the air Measure content Air content detection method air moisture content air moisture content Content measurement GB/T 13277.9-2022 Gravimetric measurement of liquid content in gas Compressed air testing standards Compressed air moisture content Compressed air quality testing method Air moisture content measurement method Moisture content standard gas Electrochemical measurement methods include steady-state measurements and transient measurements Method for determination of gas content in liquids Compressed air quality detector calibration method Moisture content measurement method Liquid caustic soda content measurement method

《GB/T 13277.9-2022压缩空气第9部分：液态水含量测量方法》由TC145（全国压缩机标准化技术委员会）归口，TC145SC1（全国压缩机标准化技术委员会压缩气体净化设备分会）执行，主管部门为中国机械工业联合会。

Introduction

1. Standard Overview

GB/T13277.9-2022 "Compressed air - Part 9: Measurement method for liquid water content" is a national standard revised and formulated based on ISO85739:2004, which is applicable to the measurement of liquid water content in compressed air purification equipment. The standard specifies the test method, sampling technology, measurement method and result evaluation.

2. Comparison of standard frameworks

Standard dimensions	ISO85739:2004	GB/T13277.9-2022
Scope of application	Measurement of liquid water content in compressed air	Same as above, adapted to Chinese technical requirements
Measurement method	Gravimetric method and vaporization method	Add normative reference documents
Technical requirements	International general standards	Meet the needs of China's compressor industry

3. Technical Background and Evolution Analysis

The presence of liquid water in compressed air will affect the performance of the pneumatic system and the life of the equipment. With the development of compressed air purification technology, the standardization of measurement methods has become an industry necessity. The formulation of the GB/T13277 series of standards fills the gap in the field of compressed air pollutant detection in China. This revision focuses on optimizing the referenced documents and term definitions to make the standards more in line with China's actual applications.

4. Liquid Water Content Measurement Method

4.1 Gravimetric Method

The gravimetric method determines the liquid water content in compressed air by collecting condensate and measuring its mass. The specific steps include: sampling, filtering, separation, weighing and calculation.

Figure 1: Flow chart of gravimetric test equipment

4.2 Vaporization method

The vaporization method determines the content by converting liquid water into gaseous water and combining it with a humidity sensor to measure the change. This method is suitable for high humidity environments.

Figure 2: Flow chart of vaporization test equipment

5. Implementation suggestions

Choose a suitable measurement method:According to the working conditions of the compressed air and the range of liquid water content, the gravimetric method or vaporization method should be preferred.
Equipment calibration:Ensure that all measuring instruments are within the validity period of the calibration and are calibrated according to the manufacturer's requirements.
Sampling point optimization:Select representative sampling points to avoid pipeline contamination affecting the test results.
Data recording and analysis:Record test parameters and results strictly in accordance with standard requirements, and conduct deviation analysis to ensure measurement accuracy.

6. Economic and social benefits of standard implementation

The implementation of GB/T13277.9-2022 will improve the quality of compressed air purification equipment, reduce the failure rate of pneumatic systems, and promote energy conservation and consumption reduction. For enterprises, compliant measurements will improve product competitiveness and meet national environmental protection requirements.

More samples: JC/T 2453-2018 DL/T 5154-2012 NB/T 47013.2-2015

Sample only — not a preview of GB/T 13277.9-2022