Ahlstrom-Munksjö offers specialty products for the scientific industry. Many papers and products were designed alongside the researchers doing test development in order to provide the necessary performance characteristics. Ahlstrom-Munksjö continues to innovate and is open to new challenges and new opportunities from companies that use our analytical filter papers and other products.
Pleated (Fluted) Filter Paper
Ahlstrom-Munksjö offers a full range of standard pleated grades that meet your needs from grades with rapid flow rates for filtration of viscous materials to grades with tight matrices for removal of fine precipitates. Ahlstrom-Munksjö’s pre-pleated grades can save valuable time and maximize the efficiency of the laboratory filter system. Pleating improves the effective surface area increasing flow rate and loading capacity thus decreasing filtration time. Pleated circles are available in 12.5 cm to 50 cm diameters.
| Grade | Filter paper base | Retention in µm |
Filtration Speed Herzberg sec/100mls |
Filtration Speed Rapidity mls/min |
Loading Capacity |
| 542 | 642 | 2 | 229 | 30 | Medium |
| 550 | 950 | 2 | 491 | 14 | Medium |
| 519 | 909 | 3 | 105 | 65 | Medium |
| 509 | 609 | 4 | 85 | 80 | Medium |
| 513 | 613 | 6 | 114 | 60 | Medium |
| 515 | 615 | 25 | 29 | 235 | High |
| 562 | 962 | 27 | 28 | 245 | High |
| 505 | 905 | 28 | 26 | 265 | Medium |
| 517 | 617 | 35 | 19 | 360 | Very High |
Beer Testing Filter Paper
Ahlstrom-Munksjö manufactures a full range of laboratory filter paper for use in the beer industry. Grade 642 is recommended for the WORT color test. Grade 515 is a pleated filter used in the SCABA analyzer, while Grade 509, also pleated, is used in the IBU test and in Malt-4 analysis and degassing. Grade 111, a 100% glass microfiber filter is also used in the beer industry to remove yeast cells before analysis (see glass microfiber section).
| Grades | Retention in µm | Filtration Speed Herzberg sec/100mls | Filtration Speed Rapidity mls/min | Loading Capacity |
| 642 | 2 | 229 | 30 | Medium |
| 509 | 4 | 85 | 80 | Medium |
| 515 | 25 | 29 | 235 | High |
Phase Separation Filter Paper
Grade 480 is a hydrophobic silicone-impregnated paper intended for phase separation.
| Size | 480 | Size | 480 |
| 7.0 | 4800-0700 | 9.0 | 4800-0900 |
| 11.0 | 4800-1100 | 12.5 | 4800-1250 |
| 15.0 | 4800-1500 | 18.5 | 4800-1850 |
| 24.0 | 4800-2400 |
Sugar Testing Filter Paper
Ahlstrom-Munksjö offers a full range of specially designed filter paper for use in the sugar industry. Grade 8613 has a smooth black finish designed for use in applications requiring visual examination of particles. Grade 613 and 615 are particularly well suited for general laboratory filtration methods and qualitative analysis.
| Grade | Retention in µm |
Filtration Speed Herzberg sec/100mls |
Filtration Speed Rapidity mls/min |
Wet Burst Inches | Loading Capacity |
| 8613 | 4 | 118 | 58 | 29 | Medium |
| 613 | 6 | 114 | 60 | 16 | Medium |
| 615 | 25 | 29 | 235 | 18 | High |
| 962 | 27 | 28 | 245 | 126 | High |
| 961 | 40 | 19 | 360 | 70 | Very High |
Pulp & Paper Blotting Paper
Ahlstrom-Munksjö Grade 240 and 623 are blotting papers manufactured for use in the pulp and paper industry. Grade 240 is recommended for TAPPI T-205 and T-491 test methods. Grade 623 is also a very popular grade used for long-fiber hand sheet applications. Grade 623 absorbs more water at a faster rate.
| Pulp & Paper Blotting Paper | TAPPI Approved | ||
| Grades | Base Weight g/m² | Total Absorbency g/m² | Absorbency Rate Sec/1ml H20 |
| 240 | 249 | 598 | 13 |
| 623 | 246 | 740 | 5 |
pH Papers and Test Strips
Ahlstrom-Munksjö offers a range of test papers for rapid determination of pH and other conditions. Universal pH indicator papers are stocked in a roll of 5 m in a plastic case, a refill pack of 3 reels for that case, and in a box of 200 strips. pH test strips, which have small squares of paper, each prepared with a different indicator, are also available. Please contact customer service for additional details.
| Roll of 5m | Refill Pack x3 | Box of 200 | Test Strip 100 per box | |
| pH 0-14 | PHT1-0014 | |||
| pH 1-14 | PHR5-0114 | PHR3-0114 | PHB2-0114 |
LabSorb Fluid Barriers
Ahlstrom-Munksjö’s LabSorb Fluid Barrier is a super absorbent, pure cellulose paper with an impermeable polyethylene backing that absorbs splatters and spills, and protects work areas from contamination and damage by toxic, infectious, corrosive, radioactive or staining materials. LabSorb’s smooth, firm surface does not inhibit stability of bottles or tubes, and allows recovery of dry spills. Liquid samples can be recovered by washing the absorbed spill from the inert surface with the appropriate buffer. Disposal is safe and easy and LabSorb ashes readily upon incineration.
View Grade 4002 - LabSorb Fluid Barriers
Microwave Sample Pads
For microwave technology systems, analyzing moisture and fat content in foods. Glass microfiber paper is used to support food product samples when they are dried, as this media will withstand higher temperatures. Ahlstrom-Munksjö grade 161, binder-free glass microfiber paper provides the consistency and precision required for accurate testing by Quality Control Laboratories. Sample Pads are available in sheets and circles.
View Grade 161 - Microwave Sample Pads
