# Secret Agent: Code Name ISO

The International Organization for Standardization is a wide-reaching authority who comprehensively letters the benchmarks for safety and quality. Their standards range from child-resistant packaging to – you guessed it – hydraulic machinery. Two commonly expressed ISO Code standards in fluid power are for the use of hydraulic symbols (ISO 1219) and particle contamination of hydraulic fluid (ISO 4406 et al). Although there are various ISO measures for particle contamination, I’d like to describe the one related to the size of particles in hydraulic fluid.

ISO 4406 describes the size and quantity of particles within hydraulic fluid. ISO has identified the three sizes of particles most relevant to measure based on their ability to damage components of the hydraulic systems, such as pumps, valves and actuators. The three sizes of concern are 4 micron, 6 micron and 14 micron. For reference, there are 2450 microns in an inch, which is 2.54 cm. For additional reference, a grain of sand is at least 75 micron and a thin hair is usually around 40 microns wide. Even “large” particles in a hydraulic system, at 14 microns, are smaller than the eye can see.

The ISO code uses a three number system to describe the quantity of 4, 6 and 14 micron particles. Each number of the code represents a range of particles, rather than a specific number of them. An example is the best way to describe it:

20/17/16

In this example, 20 indicates the quantity of 4 micron particles, 17 describes the number of 6 micron particles and 16 denotes the sum of 14 micron particles. There are always more smaller particles than larger, mostly because smaller particles are harder to filter. However, each of these numbers does not represent the number of particles, but a scaled range spelled out in the ISO code. Each line number of the code doubles the range of particles. For example:

20 = anywhere from 5000 – 10,000 four micron particles
17 = anywhere from 640 – 1300 six micron particles
16 = anywhere from 320 – 640 fourteen micron particles

As you can see, there is a big difference between a 16 and 20 as far as how many particles are in the oil, which by the way, represents just 1 ml of fluid! Also, if you have oil with a 20/17/16 code, then you probably have an open bathtub instead of a proper reservoir, because that’s some extremely dirty oil. For a complete chart showing the particle contamination scale, as well as further detail on the subject, please have a look here.

#### Discuss this Blog Entry 46

khareji (not verified)
on Aug 23, 2013

cfl Customized Fat Loss: Kyle Leon Reveals How To Get A Lean, Muscular Body Using Customized Nutrition And Simple Fat Burning Exercises. No Pills. No Crazy Diets. No Extreme Workouts...

khareji (not verified)
on Aug 23, 2013

favorite recipes all in one place Live Naturally Healthy, Fit, And Strong This site is a leading resource for information about the Sebastien Noel Paleo Recipe Book...

on Nov 21, 2013

YachtBooker is the largest international reservation system for Yacht Charters. It enables charter companies to distribute their charter fleets to charter agencies all over the world Yacht Charters

khareji (not verified)
on Aug 23, 2013

turn her into your girlfriend Girlfriend Activation System: Christian Hudson Reveals How To Get A Girlfriend Using Powerful Principles Of "Literotica"...The Same Principles Responsible For Making More Than 70 Million Women Ravenously Addicted To 50 Shades Of Grey And Obsessed With Finding A Committed Man To Ignite Their Inner Sexual Desires In The Same Way...

khareji (not verified)
on Aug 23, 2013

author amy waterman Save My Marriage Today Ebook: How To Bring The Spark Back To A Marriage That Seems Lifeless, Hopeless, And On The Verge Of Divorce. This site is a leading resource for information about the Amy Waterman Save My Marriage Today PDF book and relationship savior system...

khareji (not verified)
on Aug 23, 2013

jual sarung motor Saya mau cerita lagi nih tentang pengalaman membeli cover / sarung / selimut motor untuk motor kesayangan saya, Saya cari yang Jual Cover Motor di internet aja biar nggak ribet panas-panasan keluar beli di toko...

khareji (not verified)
on Aug 23, 2013

Egg Cooker Guide Thanks for stopping by my About page! My name is Michael, and I run the site here: EggCookerGuide.com. Like many of you out there, I was first introduced to eggs by my parents. I've always loved them, however they are cooked, boiled, poached and scrambled...

khareji (not verified)
on Aug 23, 2013

khareji (not verified)
on Aug 23, 2013

http://shop.gelcushionsgelpadsandgelmats.com/category.sc?categoryId=2 Motorcycle Seat Gel Pads! For the DIY Installer, or if you want to see how a gel pad is installed, click the this website link and call me: 800-363-3346 ...

khareji (not verified)
on Aug 23, 2013

http://www.flex-seal-brite.com/ Flex Seal Brite - flex seal liquid rubber sealant. Get your flex seal spray today. Best flex seal sealant, seal flex and seal o flex...

on Nov 26, 2013

I would also motivate just about every person to save this web page for any favorite assistance to assist posted the appearance.Furniture removalists

khareji (not verified)
on Aug 25, 2013

Water Heater Repair Boston M We provide the best water heater repair Boston. Professional technicians that are also experts in water heater replacement & water heater installation...

khareji (not verified)
on Aug 25, 2013

Water Heater Repair Bridgeport CT Water Heater Repair Specialists Bridgeport provides fast affordable repair services. Our professional technicians are experts in water heater repair...

khareji (not verified)
on Aug 25, 2013

Water Heater Repair Columbia SC Water Heater Repair Specialists Columbia provides fast affordable repair services. Our professional technicians are experts in water heater repair...

khareji (not verified)
on Aug 25, 2013

Water Heater Repair Columbus OH Water Heater Repair Specialists Columbus provides fast affordable repair services. Our professional technicians are experts in water heater repair...

khareji (not verified)
on Aug 25, 2013

Water Heater Repair Dallas TX Water Heater Repair Specialists Dallas provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement...

khareji (not verified)
on Aug 25, 2013

Water Heater Repair Denver CO Water Heater Repair Specialists Denver provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement...

Water Heater Repair Eugene OR We provide the best water heater repair Eugene. Professional technicians that are also experts in water heater replacement & water heater installation...

Water Heater Repair Hartford CT We provide the best water heater repair Hartford. Professional technicians that are also experts in water heater replacement & water heater installation...

Water Heater Repair Flint MI Water Heater Repair Specialists Flint provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement...

Water Heater Repair Fremont CA Water Heater Repair Specialists Fremont provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement...

khareji (not verified)
on Aug 28, 2013

Water Heater Repair Raleigh NC Water Heater Repair Specialists Raleigh provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement...

Water Heater Repair Richmond VA Water Heater Repair Specialists Richmond provides fast affordable repair services. Our professional technicians are experts in water heater repair...

Water Heater Repair Sacramento CA Water Heater Repair Specialists Sacramento provides fast affordable repair services. Our professional technicians are experts in water heater repair...

Water Heater Repair San Diego CA Water Heater Repair Specialists San Diego provides fast affordable repair services. Our professional technicians are experts in water heater repair...

Water Heater Repair San Francisco CA Water Heater Repair Specialists San Francisco provides fast affordable repair services. Our professional technicians are experts in water heater repair...

Water Heater Repair San Jose CA Water Heater Repair Specialists San Jose provides fast affordable repair services. Our professional technicians are experts in water heater repair...

Water Heater Repair St. Paul MN Water Heater Repair Specialists St Paul provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement...

Water Heater Repair Tacoma WA Water Heater Repair Specialists Tacoma provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement...

Water Heater Repair Tampa FL Water Heater Repair Specialists Tampa provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement...

Water Heater Repair Vancouver WA Water Heater Repair Specialists Vancouver provides fast affordable repair services. Our professional technicians are experts in water heater repair...

khareji (not verified)
on Aug 29, 2013

snoring chin strap review Check our latest snoring chin strap review before buying this anti snoring device. You also find where to buy 1 get 1 free in our snoring chin strap...

khareji (not verified)
on Sep 3, 2013

does winning the one work Winning The One: Robert Ford Reveals The "Emotional Blind Spot" Ruining Your Relationships With Men And Causing That One Man You Desperately Want To Be With To Lose Interest And Pull Away...

khareji (not verified)
on Sep 3, 2013

jump manual As Seen On ESPN, Fadeaway, and Men's Health... This site is a leading resource for information about the Jacob Hiller Jump Manual PDF book and vertical jump training system that helps athletes at all levels of competition obtain incredible vertical leaps, often over 40 inches!

khareji (not verified)
on Sep 16, 2013

claire casey capture his heart book Capture His Heart Ebook: How To Make Your Man Fall Deeply And Passionately In Love So He Never Wants To Leave. This site is a leading resource for information about the Claire Casey Capture His Heart PDF book and lasting commitment program ...

khareji (not verified)
on Sep 19, 2013

amazing cover letters reviews Amazing Cover Letter Creator: A Point And Click Solution To Writing Attention Grabbing, Interview-Landing Cover Letters. This site is a leading resource for information about the Jimmy Sweeney Amazing Cover Letters PDF book and cover letter software that teaches you ...

khareji (not verified)
on Sep 19, 2013

adonis ratio Adonis Golden Ratio: John Barban Reveals The "Perfect Body Formula" For Guys That Overcomes "Bad Genetics", Torches Belly Fat, Builds Muscle, And Involuntarily Activates The "Mating Instinct" In Women...

khareji (not verified)
on Sep 21, 2013

Water Heater Repair Ogden UT We provide the best water heater repair Ogden. Professional technicians that are also experts in water heater replacement & water heater installation.

Water Heater Repair Omaha NE We provide the best water heater repair Omaha. Professional technicians that are also experts in water heater replacement & water heater installation.

Water Heater Repair Pasadena TX We provide the best water heater repair Pasadena. Professional technicians that are also experts in water heater replacement & water heater installation.

Water Heater Repair Providence RI We provide the best water heater repair Providence. Professional technicians that are also experts in water heater replacement & water heater installation.

Water Heater Repair Richardson TX We provide the best water heater repair Richardson. Professional technicians that are also experts in water heater replacement & water heater installation.

Water Heater Repair Round Rock TX We provide the best water heater repair Round Rock. Professional technicians that are also experts in water heater replacement & water heater installation.

Water Heater Repair Salem OR Water Heater Repair Specialists Salem provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement.

Water Heater Repair Springfield MA Water Heater Repair Specialists Springfield provides fast affordable repair services. Our professional technicians are experts in water heater repair ...

Water Heater Repair St. Louis MO Water Heater Repair Specialists St Louis provides fast affordable repair services. Our professional technicians are experts in water heater repair & replacement.

Water Heater Repair Sterling Heights MI Water Heater Repair Specialists Sterling Heights provides fast affordable repair services. Our professional technicians are experts in water heater repair ...

khareji (not verified)
on Sep 24, 2013

skyvue - Bishan New condo launch by Capitaland Singapore at Bishan st 15. Sky Vue condo is located mins walk to Bishan MRT. Full set floor plan for ...

on Sep 27, 2013

I am always searching online for articles that can help me. There is obviously a lot to know about this. I think you made some good points in Features also. Keep working, great job!
top rated mattresses 2012

khareji (not verified)
on Sep 30, 2013

duo residences Duo Residences is a 99-years leasehold new launch condo development by M+S which is a joint entity by khazanah and temesek Holdings. Duo singapore is prestigious integrated development designed by the award-winning architect Ole scheeren...

khareji (not verified)
on Oct 2, 2013

fat burner ThermoBurn Xtreme (24mg Ephedra) is a potent fat burner with other ingredients shown to burn fat, increase energy, increase your metabolism, suppress appetite and more...

khareji (not verified)
on Oct 4, 2013

inflora The inflora is a new launch condo development by tripartite developers Pte Ltd (City developments, Hong Leong Group and TID). The inflora condo is located right within the quiet private residential enclave of flora drive. With expected completion in mid 2017, it comprises of 9 towers with 396 units and is situated beside the successful launched hedges park...

khareji (not verified)
on Oct 5, 2013

Dendrobium Nobile DENDROBIUM NOBILE is a standardized Dendrobium nobile extract with a high-potency alkaloid content. Dendrobium Nobile extract works similar to ephedrine or 1-3 DMAA – It also has very similar origins, dating back thousands of years to chinese traditional medicine...

khareji (not verified)
on Oct 5, 2013

purchase ephedrine Buying ephedrine online in 2013 is not very likely unless you’re a Canadian. In the US, only bronkaid is available for online purchase, but it contains fillers. Canadians have access to kaizen ephedrine hcl, and other pure ephedrine hcl...

on Oct 9, 2013

Great, This specific net webpage is seriously thrilling and enjoyment to learn. I’m an enormous fan from the subjects mentioned.

khareji (not verified)
on Oct 10, 2013

soccer training Epic Soccer Training: Matt Smith Reveals How To Become A Better Soccer Player Using Epic Drills That Drastically Improve Your Touch, Shooting, Dribbling, Moves, And Other Soccer Skills...

khareji (not verified)
on Oct 10, 2013

http://www.yeastinfectiondoctor.org Yeast infection or popularly known as Candidiasis is a type of fungal infection that affects the skin, genitals, mouth, blood or throat. Caused due to the overgrowth of Candida, a type of yeast, it is usually found in smaller quantities in the human body. However, certain health conditions and medicines can cause the yeast to grow, resulting in an yeast infection...

khareji (not verified)
on Oct 10, 2013

http://www.troutfishingtips.info Trout fishing is a relatively simple process, and it’s generally not all that different from fishing other types of fish. However, there are also certain difference as well. For starters, trouts don’t behave in the same way as other types of fish, and you can only catch them if you understand their breeding cycles, their diet as well as the location of their breeding grounds...

khareji (not verified)
on Oct 21, 2013

www.rebelmouse.com The Desire System by Dr. David Tian (the Asian Rake) gives you high definition access to a closed-door seminar (4 videos, audio, and written transcripts) taught at the Aura Dating Academy which reveals a step-by-step system for lightning fast seduction based around the concept of "emotional contagion"...

on Oct 23, 2013

I would also motivate just about every person to save this web page for any favorite assistance to assist posted the appearance.
whats the best mattress

khareji (not verified)
on Oct 27, 2013

girlfriend activation system pdf Girlfriend Activation System: Christian Hudson Reveals How To Get A Girlfriend Using Powerful Principles Of "Literotica"...The Same Principles Responsible For Making More Than 70 Million Women Ravenously Addicted To 50 Shades Of Grey And Obsessed With Finding A Committed Man To Ignite Their Inner Sexual Desires In The Same Way...

khareji (not verified)
on Oct 27, 2013

eczema free forever pdf Eczema Free Forever: How To Treat Eczema Naturally By Stopping The Root Cause Instead Of Just Masking Eczema Symptoms. This site is a leading resource for information about the Rachel Anderson Eczema Free Forever PDF book and eczema treatment system that teaches you how to get rid of eczema...

on Nov 8, 2013

Good Post!
New Exciting Development at the edge of Tanglin! 3 mins from Redhill MRT.
40floors of 429 units with Sky Garden/Sky Pool/Sky Park
360 degree panoramic view
Come visit us at alex residences!

on Nov 16, 2013

Thank you for posting such a great article! I found your website perfect for my needs. It contains wonderful and helpful posts. Keep up the good work! black friday mattress

on Nov 18, 2013

Easily, the article is actually the best topic on this registry related issue. I fit in with your conclusions and will eagerly look forward to your next updates. Just saying thanks will not just be sufficient, for the fantasti c lucidity in your writing. I will instantly grab your rss feed to stay informed of any updates. huiles essentielles

on Nov 19, 2013

I was very pleased to find this site.I wanted to thank you for this great read!! I definitely enjoying every little bit of it and I have you bookmarked to check out new stuff you post.http://blackfridaymattressdealsx.wordpress.com/

on Nov 22, 2013

You have done a great job. I will definitely dig it and personally recommend to my friends. I am confident they will be benefited from this site.
sklep wędkarski szczecin

on Nov 28, 2013

That is very interesting Smile I love reading and I am always searching for informative information like this. This is exactly what I was looking for. Thanks for sharing this great article