1. Will need to install the scales in areas without vibration and in plane
2.The larvae in the specified location, 3
. In putting chemicals to put in the center of the plate scale always
4.Do not weigh the chemicals on the plate scale directly. Because the chemicals will make dish weighing damage. To weigh chemical in another container, such as weighing bottle or crucible. The weighing of corrosive to metals to weighing in weighing bottle with lid
5.Don't weigh chemical chemicals while hot. Have to wait for it to cool down to room temperature before the substance 6,
. Do not weight more than capable of weighing scales, 7
. While weighing if chemicals six fell. Must clean immediately
8.The cleanliness of the scales to be clean. And covered by a cover to prevent the dust into the weighing
9.Must have a calibration of the scale. Using the standard weight with proper weight of the samples to weigh. And don't use handle pendulum standard must be used with the tongs.