BS 6410:1991
Current
The latest, up-to-date edition.
Methods of test for filter papers
Hardcopy , PDF
English
02-28-1991
Committees responsible
Foreword
Methods
Section 1. General
1. Scope
2. Definitions
3. Sampling and pretreatment of test pieces
4. Conditioning of test pieces
5. Test report
Section 2. Test methods for general and structural
properties
6. Grammage
7. Thickness
8. Corrugation depth
9. Moisture (volatile) content
10. Ash
11. Ignition loss
12. Resin content
13. pH value, conductivity, chloride and sulphate
contents of aqueous extracts
14. Pore size
15. Alkali solubility
16. Acid solubility
17. Calcium, copper, iron and manganese content
Section 3. Test methods for mechanical properties
18. Tensile strength
19. Tearing resistance
20. Bursting strength
21. Wet tensile strength
22. Wet bursting strength
23. Stiffness and flexibility
24. Brittleness
Section 4. Test methods for functional properties
25. Retentivity to particles in air
26. Retentivity to particles in liquids
27. Air flow resistance
28. Media migration
29. Water resistance (hydrostatic head test)
30. Liquid absorbency (Klemm method)
31. Water filtration time
32. Flammability
33. Choking life
Appendix
A. Types of filter paper and applicability of test
methods
Table
1. Applicability of test methods
Figures
1. Pressure foot for micrometer
2. Alternative pressure foot types for micrometer
3. Pore size apparatus
4. Wet bursting strength apparatus (water contact
method)
5. Template for positioning the weight on the folded
strip
6. Retentivity to particles in air apparatus
7. Air flow resistance apparatus
8. Example of a media migration test piece holder
9. Media migration test rig
10. Water resistance apparatus
11. Water filtration time apparatus (Herzberg)
12. Flammability apparatus
13. Schematic layout of single pass apparatus
14. Filter holder and plate
15. Test apparatus for laboratory type filter papers
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