papr3 - 1 Unit Analysis & Paper Properties Lecture 3...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 Unit Analysis & Paper Properties Lecture 3 PAPR 1000 Introduction to Pulp and Paper Manufacturer 2 3 English & Metric Units The metric system ( also called SI ) is the common system used in the scientific literature to describe the measurements. All measurements can be derived from the seven base units (Table 12-1). Complex measurements are combinations of the base units (Table 12-3) . Since the U.S. paper industry uses English measurements extensively, some of the base SI units are given in terms of their approximate English system equivalents (Table 12-6, 7) . 4 Significance of Unit Conversion & Analysis Buying Wood - moisture content and density, chemical-solids, viscosity etc. Selling Paper-basis weight, area, ream size, bulk or density etc. Production Machine- speed, down time, efficiency etc. Storage Temperature, Relative humidity, EMC (equilibrium moisture content) etc. Energy Mechanical and electrical energy 5 Conversion Factors Inches to centimeters multiply by 2.54 Centimeters to inches divide by 2.54 Pounds to kilograms divide by 2.2046 Kilograms to pounds multiply by 2.2046 Short tons to metric tons divide by 1.1023 Metric tons to short tons multiply by 1.1023 6 Paper Properties Paper may be characterized by measuring physical, surface and optical, and strength properties. Physical Properties of Paper Ream- a ream is a specified area of paper or paperboard, most frequently expressed in terms of a specified number of sheets (usually 500) of a certain dimension. 7 Ream Size of Different Paper Grades (For example, a 24 x 36 x 500 ream means the combined area of 500 sheets, each 24...
View Full Document

This note was uploaded on 04/02/2008 for the course PAPR 1000 taught by Professor Joyce during the Fall '08 term at Western Michigan.

Page1 / 18

papr3 - 1 Unit Analysis & Paper Properties Lecture 3...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online