Quantitative filter papers
About this item
These filter papers are made of 100% cotton linters. They are guaranteed to be free of any residual acids and they have an extremely low percentage of ash content. As a result, these filters are virtually ash-free. All Sartorius ashless filter papers are characterised by high wet strength and high purity and are therefore especially suitable for quantitative analysis, Büchner funnels, pressure or vacuum filtration.
388: 'Black dot filter' For coarse-flocculent and voluminous precipitates, especially iron, aluminium and chromium hydroxides; copper, bismuth, cobalt and iron sulphides; various organic, coloured metal deposits; determination of silicon in analysis of steel and pig iron; for acidic and slightly alkaline solutions; pressure filtration.
389: 'White dot filter' The most used grade for analyses; for relatively coarse precipitates such as silver, arsenic, antimony, cadmium, lead, iron and manganese sulphides; lead chromate; ammonium phosphorous molybdate; alkaline earth carbonates '...' for acidic and slightly alkaline solutions; pressure filtration.
390: 'Green dot filter' Filtration of fine precipitates; barium sulphate; lead molybdate; lead dioxide; calcium hydroxide; calcium fluoride; nickel, zinc and stannic sulphides; for acidic and slightly alkaline solutions; pressure filtration.
393: 'Purple dot filter' Ideal for particularly difficult filtration conditions and especially fine-grained precipitates; barium sulphate; copper oxide.
4 Options Available Below
Product Details & Documents
These filter papers are made of 100% cotton linters. They are guaranteed to be free of any residual acids and they have an extremely low percentage of ash content. As a result, these filters are virtually ash-free. All Sartorius ashless filter papers are characterised by high wet strength and high purity and are therefore especially suitable for quantitative analysis, Büchner funnels, pressure or vacuum filtration.
388: 'Black dot filter' For coarse-flocculent and voluminous precipitates, especially iron, aluminium and chromium hydroxides; copper, bismuth, cobalt and iron sulphides; various organic, coloured metal deposits; determination of silicon in analysis of steel and pig iron; for acidic and slightly alkaline solutions; pressure filtration.
389: 'White dot filter' The most used grade for analyses; for relatively coarse precipitates such as silver, arsenic, antimony, cadmium, lead, iron and manganese sulphides; lead chromate; ammonium phosphorous molybdate; alkaline earth carbonates '...' for acidic and slightly alkaline solutions; pressure filtration.
390: 'Green dot filter' Filtration of fine precipitates; barium sulphate; lead molybdate; lead dioxide; calcium hydroxide; calcium fluoride; nickel, zinc and stannic sulphides; for acidic and slightly alkaline solutions; pressure filtration.
393: 'Purple dot filter' Ideal for particularly difficult filtration conditions and especially fine-grained precipitates; barium sulphate; copper oxide.
Documents
Specifications for Product Family
Specifications
- Catalog No:
- 516-7044
- 515-1226
- 515-1146
- SARTFT-2-127580580
- Grade:
- 393
- 392
- 388
- 393
- Environmentally Preferable:
- Low Manufacturing Impact
- Low Manufacturing Impact
- Low Manufacturing Impact
- Low Manufacturing Impact
- Weight:
- 100 g/m²
- 84 g/m²
- 84 g/m²
- 100 g/m²
- Particle retention:
- 1 - 2 µm
- 5 - 8 µm
- 12 - 15 µm
- 1 µm
- Filtration speed:
- 300 s
- 50 s
- 10 s
- 300 s
- Ash content:
- ≤0,010%
- ≤0,010%
- ≤0,010%
- ≤0,010%
- Environmental certification:
- Renewable Energy Certificate
- Renewable Energy Certificate
- Renewable Energy Certificate
- Renewable Energy Certificate
Specifications
Product Family Options
Product Information
- GradeSizeAvailabilityPrice
- Specifications:
Low Manufacturing Impact More
Specifications
Cat. No.516-7044Grade393Environmentally PreferableLow Manufacturing ImpactWeight100 g/m²Particle retention1 - 2 µmFiltration speed300 sAsh content≤0,010%Environmental certificationRenewable Energy CertificateLow Manufacturing Impact - Specifications:
Low Manufacturing Impact More
Specifications
Cat. No.515-1226Grade392Environmentally PreferableLow Manufacturing ImpactWeight84 g/m²Particle retention5 - 8 µmFiltration speed50 sAsh content≤0,010%Environmental certificationRenewable Energy CertificateLow Manufacturing Impact - Specifications:
Low Manufacturing Impact More
Specifications
Cat. No.515-1146Grade388Environmentally PreferableLow Manufacturing ImpactWeight84 g/m²Particle retention12 - 15 µmFiltration speed10 sAsh content≤0,010%Environmental certificationRenewable Energy CertificateLow Manufacturing Impact - Specifications:
Low Manufacturing Impact More
Specifications
Cat. No.SARTFT-2-127580580Grade393Environmentally PreferableLow Manufacturing ImpactWeight100 g/m²Particle retention1 µmFiltration speed300 sAsh content≤0,010%Environmental certificationRenewable Energy CertificateLow Manufacturing Impact