What does ISO 4406 mean?

fluid cleanliness
ISO 4406:99 is the reporting standard for fluid cleanliness. According to this standard, a code number is assigned to particle count values derived at three different micron levels: greater than 4 microns, greater than 6 microns and greater than 14 microns.

How do I read an ISO code?

ISO codes show 3 sets of separated numbers. These numbers refer to ranges depicting the number of particles ‘larger than’ 4 micron, 6 micron and 14 micron per 1mL respectively. Obviously, as 6 micron and 14 micron particles are both larger than 4 micron, those particles are all also present in the first number.

What is ISO cleanliness code?

ISO Cleanliness Code is a three digit value used to communicate particulate contamination in oil. The international standard for reporting contamination is ISO 4406:99. A laser is used to count particles of various sizes, within a 1 ml sample, and reported in three channels.

What do the 3 numbers in an ISO oil analysis particle count represent?

NOTE: The three figures of the ISO code numbers represent ISO level contamination grades for particles of >4µm(c), >6µm(c) and >14µm(c) respectively. The NAS 1638 cleanliness standard was developed for aerospace components in the US and is still widely used for industrial and aerospace fluid power applications.

What do you need to know about ISO 4406?

ISO 4406 is widely used in hydraulic and diesel fuel applications. It is used to report cleanliness levels and verify pass/fail criteria for new hydraulic oil and diesel fuel shipments. ISO code data from equipment rolling off assembly lines can be used as a quality tool to ensure system cleanliness and reduce warranty costs.

How big is a particle in ISO 4406?

Particle Size Particles per ml* ISO 4406 Code range ISO Code 4µ[c] 151773 80000~160000 24 6µ[c] 38363 20000~40000 22 10µ[c] 8229 14µ[c] 3339 2500~5000 19 21µ[c] 1048 38µ[c] 112 Particle Size Particles per ml* ISO 4406 Code range ISO Code 4µ[c] 492 320 ~ 640 16 6µ[c] 149 80 ~ 160 14 10µ[c] 41 14µ[c] 15 10 ~ 20 11 21µ[c] 5 38µ[c] 1

What does the ISO code 19 / 17 / 14 mean?

This ISO code is expressed in 3 numbers: 19/17/14. Each number represents a contaminant level code for the correlating particle size. The code includes all particles of the specified size and larger. It is important to note that each time a code increases the quantity range of particles doubles.

Which is not present in the ISO code?

not present ISO code number N Number of particles per ml N Number of particles per ml I ISO code number M More than U Up to and including 2 22 2 20,000 4 40,000 2 21 1 10,000 2 20,000 2 20 5 5,000 1 10,000 1

What is ISO cleanliness?

What is NAS number of oil?

Both NAS 1638 and ISO 4406 focus on the methods for calculating particle counts or solid contamination levels within a fluid. NAS 1638 represents the counts of particles in five size groups: 5 to 15 microns per 100 milliliters (mL) 15 to 25 microns per 100 mL.

What is NAS filtration?

SSMPL manufacture in house skid mounted, compact, multistage NAS oil filtration system with various type of pre and final filters for fresh blended and semi used oil. It is one of the proven system for NAS.

How do ISO codes work?

ISO codes show 3 sets of separated numbers. These numbers refer to ranges depicting the number of particles ‘larger than’ 4 micron, 6 micron and 14 micron per 1mL respectively. The second number only shows particles larger than 6 micron. The last number only shows particles larger than 14 micron.

What is ISO code?

ISO currency codes are the three-letter alphabetic codes that represent the various currencies used throughout the world. When combined in pairs, they make up the symbols and cross rates used in currency trading.

Is ISO 5 cleaner than ISO 7?

The “cleanest” cleanroom is a class 1 and the “dirtiest” a class 9. ISO class 3 is approximately equal to FS209E class 1, while ISO class 8 approximately equals FS209E class 100,000….Airborne Particulate Cleanliness Class Comparison:

How do I read ISO code?

What is the NAS value?

NAS stands for ‘National Aerospace Standard of America’. It is the standard for oil cleanliness which indicates the number of microscopic particles of different size say 2-5, 5-15, 15-25, 25-50, 50-100 and above 100 micron present in 100 ml oil sample.

What is the full form of NAS value?

NAS GRADE (National Aerospace Standard 1638) is a widely adopted standard to measure the contamination degree of hydraulic oil.

What is the full form of NAS?

Network-attached storage (NAS) is a file-level storage architecture that makes stored data more accessible to networked devices. NAS is 1 of the 3 main storage architectures—along with storage area networks (SAN) and direct-attached storage (DAS).

What do the numbers mean in ISO 4406?

Commonly known as the ISO Code, ISO 4406 reports data in the form of X/Y/Z, where X, Y, and Z are integers whose values correspond to the number concentration of particles larger than 4, 6, and 14 µm (c).

How are the particles counted in ISO 4406?

International particle count standards ISO 4406 Particle contamination in oil is specified from particle count. The ISO 4406 oil cleanliness classification system consists of 3 figures. Each figure defines a class within a size range. A typical ISO 4406 particle count will be indicated as: 19/17/14 Particles >2 µ Particles >5 µ Particles >15 µ

What is the importance of ISO 4406 in hydraulics?

Given the importance of contaminant control for hydraulic and diesel engine applications, the value of ISO 4406 in communicating fluid and system cleanliness in a clear, concise manner cannot be overstated. For more information: Contact Denise Rockhill at [email protected]. Learn more about NFPA and ISO standards at www.nfpa.com/standards.

What is the accusizer used for in ISO 4406?

ACCUSIZER The AccuSizer is an advanced liquid particle counter used for a variety of applications, including ISO 4406 testing. The sensor can be used solely in light extinction mode, or as a combination of extinction + scattering, in order to measure smaller sizes down to 0.5 μm.