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GB/T 37163-2018Hydraulic fluid power -- Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle (English PDF)

液压传动采用遮光原理的自动颗粒计数法测定液样颗粒污染度

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

December 28, 2018

Implementation date

July 1, 2019

Scope

GB/T 37163-2018 is the English-translated version of 液压传动采用遮光原理的自动颗粒计数法测定液样颗粒污染度.

GB/T 37163-2018 is the Chinese standard "Hydraulic fluid power -- Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle".

Its scope clause reads: This standard specifies the operating procedures for the determination of transparent, uniform, single-phase liquid-like particle contamination using an automatic particle counter using the shading principle.

The methods described in this standard are applicable to monitoring. a) the cleanliness of the hydraulic system; b) the rinsing process; c) Auxiliary equipment and test benches.

This standard also applies to the monitoring of other liquids (eg lubricants, fuels, treatment fluids). Note 1. The surveyor needs to ensure that the original liquid sample or the particles in the liquid sample are uniformly suspended after dilution with a diluent in order to reduce the coincidence error.

Note 2. The fluid interface will produce a photoresist and give an error signal, which may cause the automatic particle counter to count down. Its clauses include terms and definitions.

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Document preview — GB/T 37163-2018

National Standard of the People's Republic of China

ICS: 23.100.60
Classification: J 20

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Materials and equipment
5 diluent
6 Pre-test requirements and procedures
7 Automatic particle counting program
8 Test report
9 Labeling instructions
Appendix A (informative) Suitable dilutions
Appendix C (normative appendix) Automatic particle counter statistical method
Appendix D (informative appendix) Particle contamination report format measured by automatic particle counter

1 Scope

This standard specifies the operating procedures for the determination of transparent, uniform, single-phase liquid-like particle contamination using an automatic particle counter using the shading principle.

The methods described in this standard are applicable to monitoring.

a) the cleanliness of the hydraulic system;

b) the rinsing process;

c) Auxiliary equipment and test benches.

This standard also applies to the monitoring of other liquids (eg lubricants, fuels, treatment fluids).

Note 1. The surveyor needs to ensure that the original liquid sample or the particles in the liquid sample are uniformly suspended after dilution with a diluent in order to reduce the coincidence error.

Note 2. The fluid interface will produce a photoresist and give an error signal, which may cause the automatic particle counter to count down.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 14039 hydraulic transmission oil solid particle pollution level code (GB/T 14039-2002, ISO 4406.1999,

MOD)

GB/T 17446 fluid drive system and component vocabulary (GB/T 17446-2012, ISO 5598.2008, IDT)

GB/T 17484 Identification and control of purification methods for hydraulic oil sampling containers (GB/T 17484-1998, idtISO 3722.

1976)

GB/T 18854 Hydraulic Transmission Liquid Automatic Particle Counter Calibration (GB/T 18854-2015, ISO 11171.2010,

MOD)

JJG196-2006 Common Glass Measuring Instrument Verification Procedure

3 Terms and definitions

The following terms and definitions as defined in GB/T 17446 apply to this document.

3.1 Condensed (caking) agglomerate

Two or more particles are tightly bonded together and will not separate under slight agitation and less shear.

3.2 Coincidence error limit

When the sensor's sensing area has multiple particles at the same time, and the counting error is less than 5%, the automatic particle counter can count NIST (National Institute of Standards and Technology) The highest particle number concentration of RM8632.

3.3 Shading lightextinction

The phenomenon that the particle intensity is weakened by the particles passing through the sensing region.

GB/T 42155 | GB/T 40565.4 | GB/T 40565.3 | GB/T 37162.4 | GB/T 37162.3 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 37 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 4406.1999 · ISO 5598.2008 · ISO 11171.2010 · JJG196-2006

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