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)