The primary difference is between the size and sensitivity of what is being measured. In the science lab, samples are typically measured for the amount of mass, in grams or kilograms. In industrial applications, weight is usually being measured. In the United States, we use the pound or ton for industrial applications. Another area of difference would be the size of the measuring scales. In the science lab, scales are easily accomodated within the inner recesses of the labe, while in the industrial setting, scales may be so large as to weigh the contents of an 18-wheel tractor-trailer. The last point of difference is one of sensitivity, the lab scales are often enclosed within a glass enclosure, so as to not be disturbed by a draft of wind, which can add false measurement data. The industrial scales usually are measuring larger increments and are open-air devices.