Shall not be assigned to an employer engaged in operations described by another classification unless the operations subject to Code 4653 are conducted as a separate and distinct business.             

Code 4653 applies to employers engaged in manufacturing animal glues in either liquid or powder form or glues made from a nitrocellulose base requiring the use of various solvents such as acetone and ethyl acetate, as well as glues involving plastic compounds.

The incidental operations performed by glue manufacturers may include bone crushing, grinding, and bagging of bone meal, filling of solidified grease into drums from the oil settling tanks and the pressing, drying, pulverizing and bagging tankage for fertilizer.

This classification additionally contemplates manufacturing gelatin, such as isinglass. Isinglass is a semitransparent whitish gelatin prepared from the air bladders of fish, used as a clarifying agent in jellies and glues.

The finished glue is filled into containers, labeled, and stored pending shipment.