Contamination Checking Evalution

 

Partical Counter

Method 1: Analysis of the contamination classes according to ISO 4406:99 in 1 ml by particle counter
Code Number 6 7 8 9 10 11 12 13 14 15 16
Qty. of Particles 0.3 0.6 1.3 2.5 5 10 20 40 80 60 320
Up to Inclusive 0.6 1.3 2.5 5 10 20 40 80 160 320 640
Code Number 17 18 19 20 21 22 23 24 25 26  
Qty. of Particles 640 1300 2500 5000 10000 20000 40000 80000 160000 320000  
Up to Inclusive 1300 2500 5000 10000 20000 40000 60000 160000 320000 640000  


Method 2: Analysis of the contamination classes according to NAS (National Aerospace Standard) 1638 Contaminates Specifications (Per 100 ml) by particle counter.
Grade 00 0 1 2 3 4 5 6 7 8 9 10 11 12
Number  & Size of Contaminants 5~15 um 125 250 500 1,000 2,000 4,000 8,000 16,000 32,000 64,000 128,000 256,000 512,000 1,024,000
15~25um 22 44 89 178 356 712 1,425 2,850 5,700 11,400 22,800 45,600 91,200 182,400
25~50 um 4 8 16 32 63 126 253 506 1,012 2,025 4,050 8,100 16,200 32,400
50~100 um 1 2 3 6 11 22 45 90 180 360 720 1,440 2,880 5,760
Upper 100 um 0 0 1 1 2 4 8 16 32 64 128 256 512 1,024
 

Contamination Checking Kit (CCK)

Nupore Membrane List
Size: 0.8 x 47 mm, 0.45 x 47 mm, 0.45 x 25 mm, 5.0 x 25 mm, 1.2 x 25 mm, 1.2 x 47 mm, 5 x 47 mm, 0.8 x 25 mm.

Millipore Membrane List
Size: 1.2 x 47 mm, 0.45 x 25 mm, 5 x 47 mm, 1.2 x 25 mm, 0.8 x 47 mm, 0.45 x 47 mm, 0.8 x 25 mm, 5 x 25 mm





       
                 
An example of very high contamination level which can critically damage hydraulic equipment (10 mg / 100 ml)
Above NAS 12
  An example of contamination level which requires immediate cleaning (4 mg / 100 ml) Above NAS 12   An example of contamination level which requires immediate cleaning (4 mg / 100 ml) Above NAS 12   An example of contamination level which requires cleaning (2 mg / 100 ml)   An example of contamination level which the oil can be cleaned to (0.5 mg / 100 ml) NAS-6

Micro Weingh scale

Products