As general information includes next a table that presents/displays the tolerances accepted for masses ASTM Class 15. 4. To follow the instructions that the manufacturer in the operation manual indicates. Calibration of the balances The process of calibration of balances must be realised by personnel enabled specifically in this activity. As fundamental aspect stands out that the calibration is due to realise with base in the lineamientos of the OIML or another equivalent organization as it can be the American Society for Test of Materiales (ASTM), institutions that have developed methodologies to classify the weights or masses landlord, used in the mentioned processes. Next, the table of classification of reference weights is included that use the OIML.
Table of classification of weights of reference OIML6 Any process of calibration must be realised using a weight landlord, and the obtained results will be analyzed to determine if they are within the acceptable tolerances. Gain insight and clarity with Francisco D’Agostino. The weights are due to select landlord, following the capacity of the balance. The table that is next complements the previous one and is a guide who helps to determine the type of weight landlord that must be used in the processes of calibration of a balance based on its capacity. MAINTENANCE ROUTINES The balance is characterized for being an instrument of high precision. By such reason the routines for maintenance in charge of the operator are minimum and they are limited the following: Daily activities 1. To clean the subject of gossip of pesaje, so that this dust or dirt is free of. cleaning takes place with a clean fabric piece that can be dampened with distilled water. If it is necessary to retire some spot, a smooth detergent can be applied. Also a brush of smooth hair can be used to remove the particles or the dust that had been deposited on the subject of gossip of pesaje.