The industrial process that kills microoganisms by exposure to high levels of ionizing energy. Most commonly used are gamma rays from cobalt 60. Electron-beam x-ray energy is also used.
> Ask about Radiation Sterilizing

A small depressed cavity (detent) in the base of the bottle to act as a guide in positioning the bottle in the decorating machine for application of decoration.
> Ask about Ramp

A method used to trim and size the inside of a plastic bottle neck finish. A special rotating cutting tool trims the sealing surface smooth and simultaneously reams (bores) the bottom opening to desired size.
> Ask about Reaming

A container design in which the flat area for labeling is indented or recessed.
> Ask about Recessed Panel

Packaging materials that may be processed for reuse by a series of changes or treatments, but not necessarily for their original use.
> Ask about Recyclable

Companies offering to recycle plastic or paper products, in order to reduce waste materials going into landfills.
> Ask about Recycling Service

In plastic bottle manufacturing, ground material from flash and trimmings which is usually blended with virgin material and remolded.
> Ask about Regrind

The turning or twisting force required to remove a lug cap, screw cap, or twistoff crown. Usually expressed in terms of "inch pounds" and measured by means of a reliable torque meter.
> Ask about Removal Torque

Shipping container in which empty unit containers are received and intended to be used as shipping containers for the product packaged in the unit containers.
> Ask about Reshipper

Any of a class of solid or semi-solid organic products of natural or synthetic origin, generally non-crystalline and of high molecular weight with no definite melting point. Most resins are polymers.
> Ask about Resin

Fillers, stabilizers, color pigments, etc., that are mixed in small quantities with resins to manufacture plastic items.
> Ask about Resin Additives

Various physically similar synthetic chemical compounds which are used to manufacture plastic items. Common resins include high density polyethylene (HDPE), polypropylene (P/P), and polyethylene terephthalate (PET).
> Ask about Resins

A closure silhouette characterized by the top of the closure being larger in diameter than the open end.
> Ask about Reverse Taper Closure

RNase, an enzyme that breaks down RNA, is a contaminant that interferes with nucleotide research. Plastic containers may be manufactured RNase free, but this a difficult to certify. No analytical tools exist to test for low RNase levels.
> Ask about RNase

A container with a bulged or deformed bottom, causing the container to rock when in an upright position.
> Ask about Rocker

A bottom defect. A bottom which has sagged so that the container is unstable when placed on a flat surface.
> Ask about Rocker Bottom

Glass and polyethylene rods are used particularly in the drug and cosmetic industries. One of the most common is a balled-end rod for touch applying medicines.
> Ask about Rods

Hollow and solid roll-on balls for deodorant containers in various sizes. Materials used include HDPE, LDPE, P/P, P/S, PTFE, acetal and nylon.
> Ask about Roll-On Balls, Plastic

Roll-on pilferproof aluminum closure.
> Ask about ROPP

A finish defect. A finish which has irregular, minute imperfections causing a rough surface.
> Ask about Rough Finish

Regular slotted container. A rectangular three dimensional shipping container, made of either solid fibreboard or of corrugated fibreboard. Outer flaps meet. Inner flaps do not meet unless length and width happen to be the same.
> Ask about RSC

Also RI. A chemical agent, incorporated in a compound applied to a metal surface to prevent or reduce rust or corrosion.
> Ask about Rust Inhibitor