Extraction thimbles are seamless, high purity filters with a distinctive thimble shape.
Thimbles are available in four different materials of construction in many sizes.
Typical applications include analysis of fats, oils, grease, organics, pesticides and pollutants, additives in plastic and rubber materials.
Diameter: ± 3 %
Length: ± 1.5 %
Grade 610 and 84, Cellulose
Suitable for Soxhlet extractions of organic components
Lipid content <0.1 % by weight
Grade 86R, Glass Fiber
High temperature extractions or dust monitoring (500 °C)
Acid resistant (except hydrofluoric)
Acid washed for minimum trace metal content
Grade 88R and 88RH, Quartz Fiber
Use up to 1000 °C
No. 88RH is treated at 900 °C for 4 hours to stabilize the weight prior to use
Both 88R and 88RH are tapered for ease in loading into stack samplers
Grade 89 and 89S, PTFE and PTFEIQuartz Fiber
Durable, temperature resistant
Non-adsorptive with respect to acid gases
PTFE is inherently hydrophobic
Little or no trace metal contamination
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