Cytiva's Whatman 100% borosilicate glass microfiber (HP-GF) thimbles are designed to fit most Soxhlet extraction units. They are well-suited to pollution monitoring when analysis of hot and acidic gases is required. Resistant to temperatures up to 500°C Binder-free, no chemical additives Nominal particle retention rating: 0.8 µm Effective when used with solvents incompatible with cellulose materials Extraction thimbles in glass, quartz, or cellulose are available from Cytiva's business. Glass Soxhlet extraction thimble applications Analysis of hot and acidic gases during emission control and smoke stack gas monitoring Analysis of pesticide residues using Soxhlet extraction Determination of oil/fat content of foods Analysis of oil and grease in solid wastes High-purity glass Soxhlet thimble sizes Whatman brand high-purity glass thimbles are available in a range of sizes and wall thicknesses for optimal use in a variety of air sampling and Soxhlet extraction units. Thimbles come in packs of 25 pieces, with four internal diameter sizes: 90 mm 90 mm tapered 100 mm 123 mm