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3910-2400Hardened Low Ash Paper, Grade 391, 24 cm diameter
Price: $418.76List Price: $465.29Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns. -
3910-2700Hardened Low Ash Paper, Grade 391, 27 cm diameter
Price: $562.90List Price: $625.45Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns. -
3910-3200Hardened Low Ash Paper, Grade 391, 32 cm diameter
Price: $674.65List Price: $749.61Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns. -
3910-0425Hardened Low Ash Paper, Grade 391, 4.25 cm diameter
Price: $34.58List Price: $38.43Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns. -
3910-0470Hardened Low Ash Paper, Grade 391, 4.7 cm diameter
Price: $95.63List Price: $106.26Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns. -
3910-4000Hardened Low Ash Paper, Grade 391, 40 cm diameter
Price: $989.74List Price: $1,099.71Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns. -
3910-0550Hardened Low Ash Paper, Grade 391, 5.5 cm diameter
Price: $37.11List Price: $41.23Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns. -
3910-0700Hardened Low Ash Paper, Grade 391, 7.0 cm diameter
Price: $47.75List Price: $53.06Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns. -
3910-0900Hardened Low Ash Paper, Grade 391, 9.0 cm diameter
Price: $57.35List Price: $63.73Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns. -
3920-1100Hardened Low Ash Paper, Grade 392, 11 cm diameter
Price: $82.28List Price: $91.42Suitable for routine gravimetric analysis and typical preparation of samples for use in analysis involving instrumental techniques. Low ash grades have intermediate ash content between qualitative grades and ashless grades. -
3920-1250Hardened Low Ash Paper, Grade 392, 12.5 cm diameter
Price: $169.25List Price: $188.06Suitable for routine gravimetric analysis and typical preparation of samples for use in analysis involving instrumental techniques. Low ash grades have intermediate ash content between qualitative grades and ashless grades. -
3920-1500Hardened Low Ash Paper, Grade 392, 15 cm diameter
Price: $105.23List Price: $116.92Suitable for routine gravimetric analysis and typical preparation of samples for use in analysis involving instrumental techniques. Low ash grades have intermediate ash content between qualitative grades and ashless grades.
Analytical Standards
Browse our curated selection of Analytical Standards from leading global manufacturers. Find research-grade reagents, certified standards, and specialty supplies backed by Cenmed's expert sourcing and technical support.
About Analytical Standards
Cenmed Enterprises provides a comprehensive selection of Analytical Standards products sourced from leading global manufacturers. Our catalog spans research-grade reagents, certified standards, and specialty compounds used across clinical, academic, and industrial laboratories worldwide.
With decades of expertise in laboratory supply distribution, we offer competitive pricing, reliable stock availability, and dedicated technical support. Whether you need small quantities for research or bulk orders for manufacturing, our team is ready to assist with sourcing, compliance documentation, and logistics.



