User manual HANNA INSTRUMENTS HI 38073

[. . . ] Instruction Manual SPECIFICATIONS Range 0 to 130 mg/L (ppm) as Phosphorus Smallest Increment 3. 3 mg/L (ppm) Phosphorus Analysis Method Colorimetric Sample Size 0. 75 mL extract Number of Tests 100 Case Dimensions 235x175x115 mm (9. 2x6. 9x4. 5") Shipping Weight 435. 5 g (15. 4 oz. ) the 0. 75 mL mark (the longer mark between 0. 7 and 0. 8). HI 38073 Phosphorus Test Kit for Soil SIGNIFICANCE AND USE Phosphorus belongs to the primary macronutrient group. It is an essential element to plant growth and is needed in large amounts. It is adsorbed at the surfaces of iron and aluminum oxides or in association with calcium. [. . . ] This is the blank. 09/00 Dear Customer, Thank you for choosing a Hanna Product. Please read the instruction sheet carefully before using the test kit. It will provide you with the necessary information for correct use of the kit. If you need additional information, do not hesitate to e-mail us at tech@hannainst. com. Remove the chemical test kit from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any noticeable damage, notify your Dealer or the nearest Hanna office immediately. Each kit is supplied with: · HI 93713-0 Reagent, packets (100 pcs); · 1 checker disc (containing the 38073 disc); · 2 glass vials with caps; · 1 syringe (1 mL) with tip. Note: Any damaged or defective item must be returned in its original packing materials. CHEMICAL REACTION Adaptation of the ascorbic acid method. The reaction between phosphate and the reagent causes a blue tint in the sample. INSTRUCTIONS READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT · Obtain a Mehlich extract from the soil sample by performing the Mehlich extraction. · Using the syringe, add to each glass vial 0. 75 mL of sample. Note: To measure exactly 0. 75 mL of sample with the syringe, push the plunger completely into the syringe and insert the tip into sample. Pull the plunger out until the lower edge of the seal is on 0. 0 mL mark of the syringe. Insert the syringe into the vial and push the sample out until the lower edge of the seal is on · Add to the other glass vial 1 packet of HI 93713-0 Reagent. Replace the cap and shake vigorously for 20 seconds. [. . . ] 1991. PRINTED IN ITALY HEALTH AND SAFETY · Wait for 3 minutes. The chemicals contained in this kit may be hazardous if improperly handled. Read the relevant Health and Safety Data Sheet before performing this test. ISTR38073 [. . . ]