WHATMAN FILTER PAPPER

Alat Laboratorium UmumGrade 44ParameterGrade 44 Ashless Filter Paper, Thin, 240 mm circle (100 pcs)GradeGrade 44 FormatCircles TypeAshless Typical Particle Retention in Liquid13 µm Nominal Thickness176 µmTypical water flow rate211 ml/min Nominal Basis Weight80 g/m²Nominal Air Flow Rate56 s/100 mL/in² Nominal Ash Content30.007% MaterialHigh-quality cotton linters Alpha Cellulose Content Min.≥98% Typical Trace Element LevelsAluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g ApplicationDesigned for gravimetric analysis and the preparation of samples for instrumental analysis. DimensionsØ 240 mm     

Alat Laboratorium UmumGrade 43ParameterGrade 43 Ashless Filter Paper for Inorganic Analysis, 150 mm circle (100 pcs)GradeGrade 43 FormatCircles TypeAshless Typical Particle Retention in Liquid116 µm Nominal Thickness220 µmTypical water flow rate262 ml/min Nominal Basis Weight95 g/m²Nominal Air Flow Rate11 s/100 mL/in² Nominal Ash Content30.007% MaterialHigh-quality cotton linters Alpha Cellulose Content Min.≥98% Typical Trace Element LevelsAluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g ApplicationDesigned for gravimetric analysis and the preparation of samples for instrumental analysis. For foodstuffs analysis. For soil analysis. For particle collection in air pollution monitoring for subsequent analysis by XRF techniques. For inorganic analysis in the construction, mining and steel industries. Diameter150 mm  1443-090Grade 43 Ashless Filter Paper for Inorganic Analysis, 90 mm circle (100 pcs)90 mm1443-110Grade 43 Ashless Filter Paper for Inorganic Analysis, 110 mm circle (100 pcs)110 mm1443-125Grade 43 Ashless Filter Paper for Inorganic Analysis, 125 mm circle (100 pcs)125 mm1443-150Grade 43 Ashless Filter Paper for Inorganic Analysis, 150 mm circle (100 pcs)150 mm1443-185Grade 43 Ashless Filter Paper for Inorganic Analysis, 185 mm circle (100 pcs)185 mm 

Alat Laboratorium UmumGrade 40ParameterGrade 40 Ashless Filter Paper for Pollution Analysis, 150 mm circle (100 pcs)GradeGrade 40 FormatCircles TypeAshless Typical Particle Retention in Liquid18 µm Nominal Thickness210 µmTypical water flow rate225 ml/min Nominal Basis Weight95 g/m²Nominal Air Flow Rate21 s/100 mL/in² Nominal Ash Content30.007% MaterialHigh-quality cotton linters Alpha Cellulose Content Min.≥98% Typical Trace Element LevelsAluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g ApplicationDesigned for gravimetric analysis and the preparation of samples for instrumental analysis. Gravimetric analysis for numerous components in cements, clays, iron, and steel products. As a primary filter for separating solid matter from aqueous extracts in general soil analysis. Quantitative determination of sediments in milk and as a pure analytical grade clean-up filter for solutions prior to AA spectrometry. Also used as a high-purity filter in the collection of trace elements and radionuclides from the atmosphere. DimensionsØ 150 mm  1440-012Grade 40 Ashless Filter Paper for Pollution Analysis, 12.7 mm circle (400 pcs)Ø 12.7 mm1440-032Grade 40 Ashless Filter Paper for Pollution Analysis, 32 mm circle (100 pcs)Ø 32 mm1440-042Grade 40 Ashless Filter Paper for Pollution Analysis, 42.5 mm circle (100 pcs)Ø 42.5 mm1440-047Grade 40 Ashless Filter Paper for Pollution Analysis, 47 mm circle (100 pcs)Ø 47 mm1440-055Grade 40 Ashless Filter Paper for Pollution Analysis, 55 mm circle (100 pcs)Ø 55 mm1440-070Grade 40 Ashless Filter Paper for Pollution Analysis, 70 mm circle (100 pcs)Ø 70 mm1440-090Grade 40 Ashless Filter Paper for Pollution Analysis, 90 mm circle (100 pcs)Ø 90 mm1440-110Grade 40 Ashless Filter Paper for Pollution Analysis, 110 mm circle (100 pcs)Ø 110 mm1440-125Grade 40 Ashless Filter Paper for Pollution Analysis, 125 mm circle (100 pcs)Ø 125 mm1440-150Grade 40 Ashless Filter Paper for Pollution Analysis, 150 mm circle (100 pcs)Ø 150 mm1440-185Grade 40 Ashless Filter Paper for Pollution Analysis, 185 mm circle (100 pcs)Ø 185 mm1440-240Grade 40 Ashless Filter Paper for Pollution Analysis, 240 mm circle (100 pcs)Ø 240 mm1440-320Grade 40 Ashless Filter Paper for Pollution Analysis, 320 mm circle (100 pcs)Ø 320 mm1440-329Grade 40 Ashless Filter Paper for Pollution Analysis, 30 mm circle (100 pcs)Ø 30 mm1440-6168Grade 40 Ashless Filter Paper for Pollution Analysis, 450 mm circle (100 pcs)Ø 450 mm1440-917Grade 40 Ashless Filter Paper for Pollution Analysis, 460 × 570 mm sheet (100 pcs)460 x 570 mm

Alat Laboratorium UmumGrade 41ParameterGrade 41 Fast Ashless Filter Paper, 55 mm (10000 pcs)GradeGrade 41 TypeAshless Typical Particle Retention in Liquid120µm Nominal Thickness215 µmTypical water flow rate2254 ml/min Nominal Basis Weight85 g/m²Nominal Air Flow Rate4 s/100 mL/in² Nominal Ash Content30.007% MaterialHigh-quality cotton linters Alpha Cellulose Content Min.≥98% Typical Trace Element LevelsAluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g ApplicationDesigned for gravimetric analysis and the preparation of samples for instrumental analysis. For analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides). Also used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates. Dimensions55 mm  1441-042Grade 41 Fast Ashless Filter Paper, 42.5 mm circle (100 pcs)Ø 42.5 mm1441-047Grade 41 Fast Ashless Filter Paper, 47 mm circle (100 pcs)Ø 47 mm1441-050Grade 41 Fast Ashless Filter Paper, 50 mm circle (100 pcs)Ø 50 mm1441-055Grade 41 Fast Ashless Filter Paper, 55 mm circle (100 pcs)Ø 55 mm1441-060Grade 41 Fast Ashless Filter Paper, 60 mm circle (100 pcs)Ø 60 mm1441-070Grade 41 Fast Ashless Filter Paper, 70 mm circle (100 pcs)Ø 70 mm1441-090Grade 41 Fast Ashless Filter Paper, 90 mm circle (100 pcs)Ø 90 mm1441-110Grade 41 Fast Ashless Filter Paper, 110 mm circle (100 pcs)Ø 110 mm1441-125Grade 41 Fast Ashless Filter Paper, 125 mm circle (100 pcs)Ø 125 mm1441-150Grade 41 Fast Ashless Filter Paper, 150 mm circle (100 pcs)Ø 150 mm1441-185Grade 41 Fast Ashless Filter Paper, 185 mm circle (100 pcs)Ø 185 mm1441-240Grade 41 Fast Ashless Filter Paper, 240 mm circle (100 pcs)Ø 240 mm1441-320Grade 41 Fast Ashless Filter Paper, 320 mm circle (100 pcs)Ø 320 mm1441-6309Grade 41 Fast Ashless Filter Paper, 25 mm circle (10,000 pcs)Ø 25 mm14416761Grade 41 Fast Ashless Filter Paper, 55 mm (10000 pcs)55 mm14418296Grade 41 Fast Ashless Filter Paper, 32 mm (100 pcs)32 mm1441-866Grade 41 Fast Ashless Filter Paper, 203 × 254 mm sheet (100 pcs)203 x 254 mm1441-917Grade 41 Fast Ashless Filter Paper,460 × 570 mm sheet (100 pcs)460 x 570 mm  

Alat Laboratorium UmumGrade 5ParameterGrade 5 Qualitative Filter Paper Standard Grade, circle, 150 mmGradeGrade 5 Grade TypeStandard Typical Particle Retention in Liquid12.5 µm Nominal Thickness200 µmTypical water flow rate25 ml/min Nominal Basis Weight100 g/m²Nominal Air Flow Rate96 s/100 ml/in² Nominal Ash Content0.06% MaterialCellulose Typical Trace Element LevelsAluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g ApplicationExcellent clarifying filter for cloudy suspensions and for water and soil analysis. Diameter150 mm  1005-042Grade 5 Qualitative Filter Paper Standard Grade, circle, 42.5 mm42.5 mm1005-047Grade 5 Qualitative Filter Paper Standard Grade, circle, 47 mm47 mm1005-055Grade 5 Qualitative Filter Paper Standard Grade, circle, 55 mm55 mm1005-060Grade 5 Qualitative Filter Paper Standard Grade, circle, 60 mm60 mm1005-070Grade 5 Qualitative Filter Paper Standard Grade, circle, 70 mm70 mm1005-090Grade 5 Qualitative Filter Paper Standard Grade, circle, 90 mm90 mm1005-110Grade 5 Qualitative Filter Paper Standard Grade, circle, 110 mm110 mm1005-125Grade 5 Qualitative Filter Paper Standard Grade, circle, 125 mm125 mm1005-150Grade 5 Qualitative Filter Paper Standard Grade, circle, 150 mm150 mm1005-185Grade 5 Qualitative Filter Paper Standard Grade, circle, 185 mm185 mm1005-240Grade 5 Qualitative Filter Paper Standard Grade, circle, 240 mm240 mm1005-320Grade 5 Qualitative Filter Paper Standard Grade, circle, 320 mm320 mm1005-325Grade 5 Qualitative Filter Paper Standard Grade, circle, 25 mm25 mm 

Alat Laboratorium UmumGrade 4ParameterGrade 4 Qualitative Filter Paper Standard Grade, 41 mmGradeGrade 4 Grade TypeStandard Typical Particle Retention in Liquid125 µm Nominal Thickness210 µmTypical water flow rate2247 ml/min Nominal Basis Weight92 g/m²Nominal Air Flow Rate4 s/100 ml/in² Nominal Ash Content0.06% MaterialCellulose Typical Trace Element LevelsAluminium 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g ApplicationUsed when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.  1004-027Grade 4 Qualitative Filter Paper Standard Grade, circle, 27 mmCirclesØ 27 mm1004-041Grade 4 Qualitative Filter Paper Standard Grade, 41 mm1004-042Grade 4 Qualitative Filter Paper Standard Grade, circle, 42.5 mmCirclesØ 42.5 mm1004-047Grade 4 Qualitative Filter Paper Standard Grade, circle, 47 mmCirclesØ 47 mm1004-050Grade 4 Qualitative Filter Paper Standard Grade, circle, 50 mmCirclesØ 50 mm1004-055Grade 4 Qualitative Filter Paper Standard Grade, circle, 55 mmCirclesØ 55 mm1004-070Grade 4 Qualitative Filter Paper Standard Grade, circle, 70 mmCirclesØ 70 mm1004-090Grade 4 Qualitative Filter Paper Standard Grade, circle, 90 mmCirclesØ 90 mm1004-110Grade 4 Qualitative Filter Paper Standard Grade, circle, 110 mmCirclesØ 110 mm1004-125Grade 4 Qualitative Filter Paper Standard Grade, circle, 125 mmCirclesØ 125 mm1004-150Grade 4 Qualitative Filter Paper Standard Grade, circle, 150 mmCirclesØ 150 mm1004-185Grade 4 Qualitative Filter Paper Standard Grade, circle, 185 mmCirclesØ 185 mm1004-240Grade 4 Qualitative Filter Paper Standard Grade, circle, 240 mmCirclesØ 240 mm1004-270Grade 4 Qualitative Filter Paper Standard Grade, circle, 270 mmCirclesØ 270 mm1004-320Grade 4 Qualitative Filter Paper Standard Grade, circle, 320 mmCirclesØ 320 mm1004-400Grade 4 Qualitative Filter Paper Standard Grade, circle, 400 mmCirclesØ 400 mm1004-648Grade 4 Qualitative Filter Paper Standard Grade, roll, 38 x 114 mmRoll38 x 114 mm1004-917Grade 4 Qualitative Filter Paper Standard Grade, sheet, 460 × 570 mmSheets460 x 570 mm (18.11 x 22.45 in)1004-930Grade 4 Qualitative Filter Paper Standard Grade, sheet, 580 × 580 mmSheets580 x 580 mm (23 x 23 in) 

Alat Laboratorium UmumGrade 3ParameterGrade 3 Qualitative Filter Paper Standard Grade, circle, 150 mmGradeGrade 3 Grade TypeStandard Diameter150 mmTypical Particle Retention in Liquid16 µm Nominal Thickness390 µmTypical water flow rate228 ml/min Nominal Basis Weight185 g/m²Nominal Air Flow Rate26 s/100 ml/in² Nominal Ash Content0.06% MaterialCellulose Typical Trace Element LevelsAluminium 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g PropertiesThick ApplicationFor use in büchner funnels. FormatCircles DimensionsØ 150 mm  1003-055Grade 3 Qualitative Filter Paper Standard Grade, circle, 55 mmCirclesØ 55 mm1003-070Grade 3 Qualitative Filter Paper Standard Grade, circle, 70 mmCirclesØ 70 mm1003-090Grade 3 Qualitative Filter Paper Standard Grade, circle, 90 mmCirclesØ 90 mm1003-110Grade 3 Qualitative Filter Paper Standard Grade, circle, 110 mmCirclesØ 110 mm1003-125Grade 3 Qualitative Filter Paper Standard Grade, circle, 125 mmCirclesØ 125 mm1003-150Grade 3 Qualitative Filter Paper Standard Grade, circle, 150 mmCirclesØ 150 mm1003-185Grade 3 Qualitative Filter Paper Standard Grade, circle, 185 mmCirclesØ 185 mm1003-240Grade 3 Qualitative Filter Paper Standard Grade, circle, 240 mmCirclesØ 240 mm1003-320Grade 3 Qualitative Filter Paper Standard Grade, circle, 320 mmCirclesØ 320 mm1003-323Grade 3 Qualitative Filter Paper Standard Grade, circle, 23 mmCirclesØ 23 mm1003-917Grade 3 Qualitative Filter Paper Standard Grade, sheet, 460 × 570 mmSheets460 x 570 mm (18.11 x 22.45 in) 

Alat Laboratorium UmumGrade 2ParameterGrade 2 Qualitative Filter Paper Standard Grade, circle, 47 mmGradeGrade 2 Grade TypeStandard Diameter47 mmTypical Particle Retention in Liquid18 µm Nominal Thickness190 µmTypical water flow rate238 ml/min Nominal Basis Weight97 g/m²Nominal Air Flow Rate20 s/100 ml/in² Nominal Ash Content0.06% MaterialCellulose Typical Trace Element LevelsAluminium 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g ApplicationUsed for monitoring specific contaminants in the atmosphere and in soil testing. FormatCircles DimensionsØ 47 mm 1002-042Grade 2 Qualitative Filter Paper Standard Grade, circle, 42.5 mmCirclesØ 42.5 mm1002-047Grade 2 Qualitative Filter Paper Standard Grade, circle, 47 mmCirclesØ 47 mm1002-055Grade 2 Qualitative Filter Paper Standard Grade, circle, 55 mmCirclesØ 55 mm1002-070Grade 2 Qualitative Filter Paper Standard Grade, circle, 70 mmCirclesØ 70 mm1002-090Grade 2 Qualitative Filter Paper Standard Grade, circle, 90 mmCirclesØ 90 mm1002-110Grade 2 Qualitative Filter Paper Standard Grade, circle, 110 mmCirclesØ 110 mm1002-125Grade 2 Qualitative Filter Paper Standard Grade, circle, 125 mmCirclesØ 125 mm1002-147Grade 2 Qualitative Filter Paper Standard Grade, circle, 150 mm, certified for IS testingCirclesØ 150 mm1002-150Grade 2 Qualitative Filter Paper Standard Grade, circle, 150 mmCirclesØ 150 mm1002-185Grade 2 Qualitative Filter Paper Standard Grade, circle, 185 mmCirclesØ 185 mm1002-240Grade 2 Qualitative Filter Paper Standard Grade, circle, 240 mmCirclesØ 240 mm1002-270Grade 2 Qualitative Filter Paper Standard Grade, circle, 270 mmCirclesØ 270 mm1002-320Grade 2 Qualitative Filter Paper Standard Grade, circle, 320 mmCirclesØ 320 mm1002-385Grade 2 Qualitative Filter Paper Standard Grade, circle, 385 mmCirclesØ 385 mm1002-500Grade 2 Qualitative Filter Paper Standard Grade, circle, 500 mmCirclesØ 500 mm1002-917Grade 2 Qualitative Filter Paper Standard Grade, sheet, 460 × 570 mmSheets460 x 570 mm (18.11 x 22.45 in)1002-929Grade 2 Qualitative Filter Paper Standard Grade, sheet, 600 × 600 mmSheets600 x 600 mm (23.62 x 23.62 in)1002-931Grade 2 Qualitative Filter Paper Standard Grade, sheet, 580 × 680 mmSheets580 x 680 mm (22 x 26 in)  

Alat Laboratorium UmumWhatman No.1ParameterGrade 1 Qualitative Filter Paper Standard Grade, sheet, 580 × 680 mmGradeGrade 1 Grade TypeStandard Typical Particle Retention in Liquid111 µm Nominal Thickness180 µmTypical water flow rate257 ml/min Nominal Basis Weight87 g/m²Nominal Air Flow Rate13 s/100 ml/in² Nominal Ash Content0.06% MaterialCellulose Typical Trace Element LevelsAluminium 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g ApplicationUsed filter paper for routine applications with medium retention and flow rate. Covers a wide range of laboratory applications and is frequently used for clarifying liquids. FormatSheets Dimensions580 x 680 mm (22 x 26 in) Pack size100 pieces 1001-0155Grade 1 Qualitative Filter Paper Standard Grade, circle, 15 mmCirclesØ 15 mm1001-020Grade 1 Qualitative Filter Paper Standard Grade, circle, 20 mmCirclesØ 20 mm1001-025Grade 1 Qualitative Filter Paper Standard Grade, circle, 25 mmCirclesØ 25 mm1001-030Grade 1 Qualitative Filter Paper Standard Grade, circle, 30 mmCirclesØ 30 mm1001-032Grade 1 Qualitative Filter Paper Standard Grade, circle, 32 mmCirclesØ 32 mm1001-042Grade 1 Qualitative Filter Paper Standard Grade, circle, 42.5 mmCirclesØ 42.5 mm001-045Grade 1 Qualitative Filter Paper Standard Grade, circle, 14.5 cmCirclesØ 14.5 cm1001-047Grade 1 Qualitative Filter Paper Standard Grade, circle, 47 mmCirclesØ 47 mm1001-055Grade 1 Qualitative Filter Paper Standard Grade, circle, 55 mmCirclesØ 55 mm1001-070Grade 1 Qualitative Filter Paper Standard Grade, circle, 70 mmCirclesØ 70 mm1001-085Grade 1 Qualitative Filter Paper Standard Grade, circle, 85 mmCirclesØ 85 mm1001-090Grade 1 Qualitative Filter Paper Standard Grade, circle, 90 mmCirclesØ 90 mm1001-110Grade 1 Qualitative Filter Paper Standard Grade, circle, 110 mmCirclesØ 110 mm1001-125Grade 1 Qualitative Filter Paper Standard Grade, circle, 125 mmCirclesØ 125 mm1001-150Grade 1 Qualitative Filter Paper Standard Grade, circle, 150 mmCirclesØ 150 mm1001-185Grade 1 Qualitative Filter Paper Standard Grade, circle, 185 mmCirclesØ 185 mm1001-240Grade 1 Qualitative Filter Paper Standard Grade, circle, 240 mmCirclesØ 240 mm1001-270Grade 1 Qualitative Filter Paper Standard Grade, circle, 270 mmCirclesØ 270 mm1001-320Grade 1 Qualitative Filter Paper Standard Grade, circle, 320 mmCirclesØ 320 mm1001-325Grade 1 Qualitative Filter Paper Standard Grade, circle, 25 mmCirclesØ 25 mm1001-329Grade 1 Qualitative Filter Paper Standard Grade, circle, 30 mmCirclesØ 30 mm1001-329Grade 1 Qualitative Filter Paper Standard Grade, circle, 30 mmCirclesØ 30 mm1001-400Grade 1 Qualitative Filter Paper Standard Grade, circle, 400 mmCirclesØ 400 mm1001-500Grade 1 Qualitative Filter Paper Standard Grade, circle, 150 cmCirclesØ 150 cm1001-6508Grade 1 Qualitative Filter Paper Standard Grade, circle, 10 mmCirclesØ 10 mm1001-734Grade 1 Qualitative Filter Paper Standard Grade, 47 × 100 mSheets1001-813Grade 1 Qualitative Filter Paper Standard Grade, sheet, 26 × 31 mmSheets26 x 31 mm (1 x 1.23 in)1001-824Grade 1 Qualitative Filter Paper Standard Grade, sheet, 75 × 100 mmSheets75 x 100 mm (3 x 4 in)1001-917Grade 1 Qualitative Filter Paper Standard Grade, sheet, 460 × 570 mmSheets460 x 570 mm (18.11 x 22.45 in)1001-918Grade 1 Qualitative Filter Paper Standard Grade, sheet, 460 × 570 mmSheets460 x 570 mm (18.11 x 22.45 in)1001-929Grade 1 Qualitative Filter Paper Standard Grade, sheet, 600 × 600 mmSheets600 x 600 mm (23.62 x 23.62 in)1001-931Grade 1 Qualitative Filter Paper Standard Grade, sheet, 580 × 680 mmSheets580 x 680 mm (22 x 26 in)1001-932Grade 1 Qualitative Filter Paper Standard Grade, sheet, 580 × 680 mmSheets580 x 680 mm (22 x 26 in) 

Alat Laboratorium UmumGrade 42 ParameterGrade 42 Ashless Filter Paper for Instrumental Analysis, Flag sheet (100 pcs)GradeGrade 42 FormatSheets TypeAshless DimensionsFlag Typical Particle Retention in Liquid12.5 µm Nominal Thickness200 µmTypical water flow rate25 ml/min Nominal Basis Weight100 g/m²Nominal Air Flow Rate96 s/100 mL/in² Nominal Ash Content30.007% MaterialHigh-quality cotton linters Alpha Cellulose Content Min.≥98% Typical Trace Element LevelsAluminium 2.5 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead <0.5 µg/g Magnesium 4 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g ApplicationDesigned for gravimetric analysis and the preparation of samples for instrumental analysis. For critical gravimetric analysis with the finest particle retention. 1442-042Grade 42 Ashless Filter Paper for Instrumental Analysis, 42.5 mm circle (100 pcs)Ø 42.5 m1442-047Grade 42 Ashless Filter Paper for Instrumental Analysis, 47 mm circle (100 pcs)Ø 47 mm1442-055Grade 42 Ashless Filter Paper for Instrumental Analysis, 55 mm circle (100 pcs)Ø 55 mm1442-070Grade 42 Ashless Filter Paper for Instrumental Analysis, 70 mm circle (100 pcs)Ø 70 mm1442-090Grade 42 Ashless Filter Paper for Instrumental Analysis, 90 mm circle (100 pcs)Ø 90 mm1442-110Grade 42 Ashless Filter Paper for Instrumental Analysis, 110 mm circle (100 pcs)Ø 110 mm1442-125Grade 42 Ashless Filter Paper for Instrumental Analysis, 125 mm circle (100 pcs)Ø 125 mm1442-150Grade 42 Ashless Filter Paper for Instrumental Analysis, 150 mm circle (100 pcs)Ø 150 mm1442-185Grade 42 Ashless Filter Paper for Instrumental Analysis, 185 mm circle (100 pcs)Ø 185 mm1442-240Grade 42 Ashless Filter Paper for Instrumental Analysis, 240 mm circle (100 pcs)Ø 240 mm1442-320Grade 42 Ashless Filter Paper for Instrumental Analysis, 320 mm circle (100 pcs)Ø 320 mm1442-6551Grade 42 Quantitative Filter Paper Ashless (Ash 0.007%), sheet, 25.4 × 90 mm25.4 x 90 mm1442-917Grade 42 Ashless Filter Paper for Instrumental Analysis, 460 × 570 mm sheet (100 pcs)460 x 570 mm1442-971Grade 42 Ashless Filter Paper for Instrumental Analysis, Flag sheet (100 pcs)Flag