Balance use ten points

Ten tips for using the balance:

1. Place it in a horizontal place. The code is zeroed.

2. Adjust the balance nut (the nut on both ends of the balance) and adjust the zero point until the needle is aligned with the center mark.

3, the left tray put the weighing object, the right tray weight (left object right code). According to the properties of the weighing object should be placed on glassware or clean paper, the quality of the glassware or paper sheet should be weighed on the same scale in advance, and then the material to be weighed is weighed.

4. Adding the weight increases from the maximum value of the estimated weighing object and gradually decreases. Tray balance can only be weighed to 0.1 grams. Add and subtract weights and move the marker on the ruler until the pointer is again aligned with the center mark.

5, too cold and overheated objects can not be weighed on the balance. Should be placed in the desiccator until room temperature and then weighed (or weighed in a special vessel).

6. The mass of the object = the weight of the weight + the degree displayed by the rider code.

7, take weights must be gently with a dice, remove the weight should be placed in the weight box, weighing is completed, should return the tour code back to zero.

8. When weighing dry solid medicines, place a piece of paper of the same quality on each of the two trays, and then place the medicines on paper for weighing.

9. Drugs that are easily deliquescent must be weighed on glassware (eg, small beakers, watch glasses).

10. If the weight is rust, the measurement result is too small; if the weight is worn, the measurement result is too large.