2025-7-16 18.97.14.87
Code of China Chinese Classification Professional Classification ICS Classification Latest News Value-added Services

Position: Chinese Standard in English/GB/T 20082-2006
GB/T 20082-2006   Hydralic fluid power-Fluid contamination - Determination of particulate contamination by the counting method using an optical microscope (English Version)
Standard No.: GB/T 20082-2006 Status:valid remind me the status change

Email:

Language:English File Format:PDF
Word Count: 5500 words Price(USD):110.0 remind me the price change

Email:

Implemented on:2006-8-1 Delivery: via email in 1 business day
,,
Standard No.: GB/T 20082-2006
English Name: Hydralic fluid power-Fluid contamination - Determination of particulate contamination by the counting method using an optical microscope
Chinese Name: 液压传动 液体污染 采用光学显微镜测定颗粒污染度的方法
Chinese Classification: J20    Hydraulic and pneumatic device
Professional Classification: GB    National Standard
ICS Classification: 23.100.60 23.100.60    Filters, seals and contamination of fluids 23.100.60
Issued by: AQSIQ SAC
Issued on: 2006-1-23
Implemented on: 2006-8-1
Status: valid
Language: English
File Format: PDF
Word Count: 5500 words
Price(USD): 110.0
Delivery: via email in 1 business day
GB/T 20082-2006 Hydralic fluid power-Fluid contamination - Determination of particulate contamination by the counting method using an optical microscope 1 Scope This standard specifies methods for determining the level of particulate contamination in liquids used in hydraulic systems by counting the number of particles deposited on the surface of a membrane filter using an optical microscope. It includes particle counting by two manual methods and image analysis, using either transmitted or incident lighting systems. Particle sizes ≥2μm can be sized and counted by this method, but the resolution and accuracy of the results will depend upon the optical system used and the capabilities of the operator. All hydraulic fluids with a wide range of contamination levels can be analysed according to this standard. However, the counting uncertainty at the larger particle sizes increases if the volume filtered is reduced to allow smaller sized particles to be counted, where a fine precipitate or a high particle concentration is present. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 12804 Laboratory glassware - Graduated measuring cylinders (GB/T 12804-1991, eqv ISO 4788:1980) GB/T 14039-2002 Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid particles (ISO 4406:1999, MOD) GB/T 17446 Fluid power systems and components - Terminology (GB/T 17446-1998, idt ISO 5598:1985) GB/T 17484 Hydraulic fluid power - Fluid sample containers - Qualifying and controlling cleaning methods (GB/T 17484-1998, idt ISO 3722:1976) GB 50073-2001 Code for design of clean room 3 Terms and definitions For the purposes of this standard, the terms and definitions given in GB/T 17446 and the following apply. 3.1 blank count count resulting from contaminants introduced from other sources, such as reagents, cleaning of glassware and preparation of the membrane filter (see 9.2) 3.2 calculation factor ratio of the effective filtration area to the total area counted 3.3 effective filtration area (EFA) circular area of the membrane filter open to flow during filtration of liquid Note: Both the effective filtration area (EFA) and the effective filtration diameter (EFD) are determined in 8.2. 3.4 fibre particle longer than 100 µm with a length-to-width ratio greater than or equal to 10:1 3.5 fixative liquid liquid that, as a result of a heat curing process, causes a membrane filter to adhere to a glass base slide, resulting in an opaque residue 3.6 grid square square with sides of nominally 3.1mm printed on membrane filters Note: Gridded membrane filters may not be suitable for counting using image analysis techniques. 3.7 image analyser instrumentation to automatically size and count particles deposited on a membrane filter Note: A video image of the particle is digitally recreated based upon the difference in the grey scale contrast of the particle and background, and the size is automatically computed. Sizing of the particle can also be undertaken on the video screen. 3.8 mountant liquid liquid that, when heated, causes a membrane filter, previously treated with fixative liquid, to become transparent and to adhere to the cover slip (see 5.7) 3.9
Referred in GB/T 20082-2006:
*GB/T 14039-2002 Hydraulic fluid power--Fluids--Method for coding the level of contamination by solid particles
*GB/T 17446-2024 Fluid power systems and components—Vocabulary
*GB/T 17484-1998 Hydraulic fluid power - Fluid sample containers - Qualifying and controlling cleaning methods
*GB 50073-2001 code for design of clean room
*GB/T 12804-2011 Laboratory glassware—Graduated measuring cylinders
GB/T 20082-2006 is referred in:
* JB/T 10607-2006 Guidelines for Use of Hydraulic System Fluids
* GB/T 25694-2010 Earth-moving machinery—Skid-steer loaders
*GB/T 9139-2018 Earth-moving machinery - Hydraulic excavators - Technical specifications
*GB/T 8511-2018 Vibratory roller
*GB/T 9465-2018 Vehicle-mounted mobile elevating work platform
*GB/T 42087-2022 Hydraulic fluid power—System—Clean-up procedures and verification of cleanliness method
*JB/T 14454-2024 Earth-moving machinery - Electric hydraulic excavators with external power supply device - Test methods
Code of China
Standard
GB/T 20082-2006   Hydralic fluid power-Fluid contamination - Determination of particulate contamination by the counting method using an optical microscope (English Version)
Standard No.GB/T 20082-2006
Statusvalid
LanguageEnglish
File FormatPDF
Word Count5500 words
Price(USD)110.0
Implemented on2006-8-1
Deliveryvia email in 1 business day
Detail of GB/T 20082-2006
Standard No.
GB/T 20082-2006
English Name
Hydralic fluid power-Fluid contamination - Determination of particulate contamination by the counting method using an optical microscope
Chinese Name
液压传动 液体污染 采用光学显微镜测定颗粒污染度的方法
Chinese Classification
J20
Professional Classification
GB
ICS Classification
Issued by
AQSIQ SAC
Issued on
2006-1-23
Implemented on
2006-8-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
5500 words
Price(USD)
110.0
Keywords
GB/T 20082-2006, GB 20082-2006, GBT 20082-2006, GB/T20082-2006, GB/T 20082, GB/T20082, GB20082-2006, GB 20082, GB20082, GBT20082-2006, GBT 20082, GBT20082
Introduction of GB/T 20082-2006
GB/T 20082-2006 Hydralic fluid power-Fluid contamination - Determination of particulate contamination by the counting method using an optical microscope 1 Scope This standard specifies methods for determining the level of particulate contamination in liquids used in hydraulic systems by counting the number of particles deposited on the surface of a membrane filter using an optical microscope. It includes particle counting by two manual methods and image analysis, using either transmitted or incident lighting systems. Particle sizes ≥2μm can be sized and counted by this method, but the resolution and accuracy of the results will depend upon the optical system used and the capabilities of the operator. All hydraulic fluids with a wide range of contamination levels can be analysed according to this standard. However, the counting uncertainty at the larger particle sizes increases if the volume filtered is reduced to allow smaller sized particles to be counted, where a fine precipitate or a high particle concentration is present. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 12804 Laboratory glassware - Graduated measuring cylinders (GB/T 12804-1991, eqv ISO 4788:1980) GB/T 14039-2002 Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid particles (ISO 4406:1999, MOD) GB/T 17446 Fluid power systems and components - Terminology (GB/T 17446-1998, idt ISO 5598:1985) GB/T 17484 Hydraulic fluid power - Fluid sample containers - Qualifying and controlling cleaning methods (GB/T 17484-1998, idt ISO 3722:1976) GB 50073-2001 Code for design of clean room 3 Terms and definitions For the purposes of this standard, the terms and definitions given in GB/T 17446 and the following apply. 3.1 blank count count resulting from contaminants introduced from other sources, such as reagents, cleaning of glassware and preparation of the membrane filter (see 9.2) 3.2 calculation factor ratio of the effective filtration area to the total area counted 3.3 effective filtration area (EFA) circular area of the membrane filter open to flow during filtration of liquid Note: Both the effective filtration area (EFA) and the effective filtration diameter (EFD) are determined in 8.2. 3.4 fibre particle longer than 100 µm with a length-to-width ratio greater than or equal to 10:1 3.5 fixative liquid liquid that, as a result of a heat curing process, causes a membrane filter to adhere to a glass base slide, resulting in an opaque residue 3.6 grid square square with sides of nominally 3.1mm printed on membrane filters Note: Gridded membrane filters may not be suitable for counting using image analysis techniques. 3.7 image analyser instrumentation to automatically size and count particles deposited on a membrane filter Note: A video image of the particle is digitally recreated based upon the difference in the grey scale contrast of the particle and background, and the size is automatically computed. Sizing of the particle can also be undertaken on the video screen. 3.8 mountant liquid liquid that, when heated, causes a membrane filter, previously treated with fixative liquid, to become transparent and to adhere to the cover slip (see 5.7) 3.9
Contents of GB/T 20082-2006
About Us   |    Contact Us   |    Terms of Service   |    Privacy   |    Cancellation & Refund Policy   |    Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886
Copyright: TransForyou Co., Ltd. 2008-2040
 
 
Keywords:
GB/T 20082-2006, GB 20082-2006, GBT 20082-2006, GB/T20082-2006, GB/T 20082, GB/T20082, GB20082-2006, GB 20082, GB20082, GBT20082-2006, GBT 20082, GBT20082