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- Page 11 - 

USER MANUAL 

 

 

5. Filter Washing 

 

5.1   

When the filtration is complete and the upper filter medium appears dry, continue the 

 

steam and vacuum for a further 5 min. Discontinue the steam supply and cool the apparatus 

by  

passing tap water through the coils. Wash the filtration unit carefully with two portions of 25 ±1 

 

mL of the wash solvent from a syringe or graduated wash bottle with a fine nozzle, taking care 

 

to remove any adhered sample from the wall of the upper part of the apparatus. Carefully 

 

remove the top portion of the filtration unit and wash the rim of the filter with a further 10 ±0.5 

 

mL of the wash solvent in a similar manner. Finally wash the whole of the filter medium 

 

area with 10 ±0.5 mL of 

n

-heptane. 

 
 

NOTE 5— 

If the sample filters very rapidly, the vacuum should be released before the first  

 

 

 

solvent washing, to ensure complete coverage of the filter medium area by  

 

 

 

solvent. The vacuum should then be gently reapplied for the subsequent   

 

 

 

operations.

 

 
 

6. Apparatus Disassembly 

 

6.1  

After the filter medium appears dry, discontinue the vacuum supply. Using the forceps, 

 

carefully remove each filter medium separately and transfer them to the oven at 110°C. 

 

Dry for 20 min and quickly transfer them to the same numbered weighing bottles as used in 2. 

 

Allow them to cool in the cooling vessel to room temperature (5 to 10 min) and reweigh them 

 

(against tare) to the nearest 0.0001 g. 

 

 
 

7. Calculation 

 
 

7.1  

Calculate the mass percentage of total sediment to the nearest 0.01% m/m using the 

 

following equation: 

 
 

S=

(

M

5 - 

M

4) - (

M

3 - 

M

2) / 10 

M

 

where: 

 

 

= total sediment, % m/m, 

 

M

1 = mass of sample, g, 

 

M

2 = mass of lower filter medium before filtration, mg, 

 

M

3 = mass of lower filter medium after filtration, mg, 

 

M

4 = mass of upper filter medium before filtration, mg, and 

 

M

5 = mass of upper filter medium after filtration, mg. 

 

Summary of Contents for K4831X

Page 1: ...re Avenue Bohemia New York 11716 1796 USA Toll Free 1 800 878 9070 US only Tel 1 631 589 3800 Fax 1 631 589 3815 http www koehlerinstrument com e mail info koehlerinstrument com Petroleum Testing Analysis Instrumentation Custom Design Manufacturing K4831X Total Sediment Tester ...

Page 2: ... Page 2 ...

Page 3: ... Page 3 USER MANUAL CONTENTS Notice Guarantee Safety information and suggestions Technical specifications of the device Accessories Spare parts Procedure Guarantee certificate ...

Page 4: ...es etc it is essential to contact the manufacturer Whoever intervenes with the device will act under his own responsibility and cause the immediate suspension of the warranty Before proceeding with a maintenance service remove the plug from the socket The manufacturer declines every kind of responsibility for all the operations not in conformity to the aforesaid dispositions or performed by person...

Page 5: ...if any The manufacturer is not responsible for the possible damages caused to the device due to wrong connections to the power supply if any In case of extraordinary maintenance personally realised by the customer during the warranty period the guarantee will immediately be suspended The manufacturer reserves himself the right to bring in any moment and without warning changes and innovations resp...

Page 6: ...NS BELOW 1 Avoid to lean on the apparatus any kind of material 2 Oversee the operating zone in order to avoid the approaching of operators without qualification 3 Always wear suitable clothes 4 Always use masks protective glasses and gloves in conformity to the normative in force 5 Avoid to send water spout on the device 6 Always pay attention when using the apparatus 7 It is severely forbidden to...

Page 7: ... the end of life is organized and managed by the manufacturer The user that intends to trash this equipment will have to contact the manufacturer and follow the procedure that it has taken to allow separate collection of the apparatus arrived at the end of life Appropriate differentiated collection for the dismantled appliance being subsequently sent out for recycling treatment and for environment...

Page 8: ...rom 0 to 50 C Storage temperature from 10 to 70 C Ambient relative humidity lower than 90 HR not condensing ACCESSORIES K48319 10 Steam Generator K48319 11 Vacuum Pump K48319 14 GFA filter pack of 100 pcs K48319 9 Thermometer 95 C 105 C SPARE PARTS K48319 14 GFA filter pack of 100 pcs K48319 12 Sintered disc pack of 2 pcs ...

Page 9: ...media for 20 min in the oven at 110 C Transfer each paper separately rapidly to a numbered weighing bottle and allow to cool in the cooling vessel to room temperature 5 to 10 min Where two pan balances are used weigh each weighing bottle plus filter medium by the tare method against an empty similar bottle to the nearest 0 001 g NOTE 1 Caution The Whatman GF A filter media are fragile and are to b...

Page 10: ...o an absolute pressure of 40 2 kPa minimum 61 3 kPa vacuum Heat the contents of the beaker to 100 2 C Then transfer the contents at 100 2 C Note 3 to the center of the filter medium taking care that no sample touches the walls during transfer Note 4 Reweigh the beaker to the nearest 0 01 g The quantity transferred should be 10 0 5 g When filtration is not complete in 25 min discontinue the test an...

Page 11: ...sed before the first solvent washing to ensure complete coverage of the filter medium area by solvent The vacuum should then be gently reapplied for the subsequent operations 6 Apparatus Disassembly 6 1 After the filter medium appears dry discontinue the vacuum supply Using the forceps carefully remove each filter medium separately and transfer them to the oven at 110 C Dry for 20 min and quickly ...

Page 12: ...filtration is not complete within the specified 25 min report the results as filtration time exceeds 25 min 8 2 Test Report The test report shall contain at least the following information 8 2 1 The type and identification of the product tested 8 2 2 A reference to this test method 8 2 3 The result of the test see 8 8 2 4 Any deviation by agreement or otherwise from the standard procedures specifi...

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