Read More
Date: 18-1-2017
1405
Date:
2277
Date: 20-4-2017
1316
|
Weighing by Difference
Weighing by difference is a simple method for determining a series of sample masses.
First, the bottle and its contents are weighed. One sample is then transferred from the bottle to a container. Gentle tapping of the bottle with its top and slight rotation of the bottle provide control over the amount of sample removed. Following transfer, the bottle and its residual contents are weighed. The mass of the sample is the difference between the two masses. It is essential that all the solid removedweighing bottle be transferred without loss to the container.
|
|
دراسة: طريقة قيادة السيارة قد تكشف عن مرض نفسي لدى السائق
|
|
|
|
|
بتكنولوجيا خاصة.. إنتاج حرير روسي عالي الجودة
|
|
|
|
|
شاهد بالصور مراحل انجاز جديدة يدخلها مشروع صحن العقيلة زينب (ع)
|
|
|