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Paper Weight and Paper Sizes - ISO Standard

2017-05-22 16:31:05 Zhuhai Hamah Industrial Co., Ltd. Read

Let's End the Confusion


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In an effort to help eliminate the "Paper Weight" confusion problem,
we have compiled the comprehensive table listed below.
Now you can compare various types of paper and their "Equivalent Weights."



    Definitions:


  • Basis Weight
    The basis weight of a paper is the designated fixed weight of 500 sheets,
    measured in pounds, in that paper's basic sheet size.
    It is important to note that the "basic sheet size" is not the same
    for all types of paper.

  • Caliper
    Caliper refers to the thickness of a sheet of paper expressed
    in thousandth of an inch. This measurement is taken with a micro meter.
    Normally, paper caliper should not have more than a + or - 5% variance
    within a sheet. Generally, the relation between caliper and basis weight ....
    the greater the caliper (the thicker the paper), the greater the paper weight.

  • Equivalent Weight
    While different paper types have different basic sizes,
    papers can still be compared by using equivalent weight.

  • POINTS
    Every POINT=.001 inch
    For Example: 10 pt card = .010in.


Basis Weight ("Category") Table


Type PaperBasic Size - 500 Sheets
"Bond"
Ledger
Mimeo
Duplicator
Rag Paper
17" x 22"
"Offset"
Book
Text
Coated Paper
25" x 38"
"Cover"
20" x 26"
"Tag Stock"
24" x 36"
"Index"
25-1/2" x 30-1/2"


The Values in the table below are intended to serve as a guide only.
They should not be used as specifications because there are variances
within the same basis weight due to other characteristics of the papers.
Similar weight papers may vary between different paper manufacturers.




--
Bond
Ledger

-
Offset
Text

-
Cover
-

--
Tag
--

-
Index
-

-
Points
-

-
*Caliper
(inches)

--
millimeters
--

-
Metric
(grams/sq meter)

Equivalent16402237333.2.00320.08160.2 gsm
Weight18452441373.6.00360.09267.72 gsm

20502846423.8.00380.09775.2 gsm

24603356504.8.00480.1290.3 gsm

28703964585.8.00580.147105.35 gsm

29734062606.00600.152109.11 gsm

31814573666.1.00610.155116.63 gsm

32

7467


120 gsm

35904880746.2.00620.157131.68 gsm

36905082756.8.00680.173135.45 gsm

391005490817.2.00720.183146.73 gsm











401005693837.3.00730.185150.5 gsm

4311060100907.4.00740.188161.78 gsm

4411061102927.6.00760.193165.55 gsm

4712065108978.00780.198176.83 gsm

53135741221109.00850.216199.41 gsm

54137751251139.0090.229203.17 gsm

58146801341209.5.00920.234218.22 gsm

651659015013510.00950.241244.56 gsm

671709315614010.5.0100.25252.08 gsm

7218310016615011.0110.289270.9 gsm

7619210517515813.0130.33285.95 gsm

8220811418917014.0140.356308.52 gsm

8722012020018015.0150.38312 gsm

10526714624422018.01750.445385.06 gsm


  • The darker colored boxes above represent the
    "most common paper weights" for that category.


  • Normal paper manufacturing tolerance within a
    paper production run is + or - 5% to 7% caliper


  • This Table was compiled by Micro Format, Inc.

  • Copyright 1997-2005 Micro Format, Inc.

    This table may be duplicated with permission from Micro Format, Inc.



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International Metric Paper Sizes - ISO Standard


SIZE
WIDTH (mm)
HEIGHT (mm)
WIDTH (in.)
HEIGHT(in.)
A0841 mm1,189 mm33.11 in.46.81 in.
A1594 mm841 mm23.39 in.33.11 in.
A2420 mm594 mm16.54 in.23.39 in.
A3297 mm420 mm11.69 in.16.54 in.
A4210 mm297 mm8.27 in.11.69 in.
A5148 mm210 mm5.83 in.8.27 in.
A6105 mm148 mm4.13 in.5.83 in.
A774 mm105 mm2.91 in.4.13 in.
B01,028 mm1,456 mm40.48 in.57.32 in.
B1728 mm1,028 mm28.66 in.40.48 in.
B2514 mm728 mm20.24 in.28.66
B3364 mm514 mm14.33 in.20.24 in.
B4257 mm364 mm10.12 in.14.33 in.
B5182 mm257 mm7.17 in.10.12 in.
B6128 mm182 mm5.04 in.7.17 in.




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HELPFUL GUIDELINES for PAPER USAGE

  • Prior to use, paper should be allowed to acclimate at least
    48 Hours in the environment in which it will be used.
    Optimum storage facility would retain temperatures between 70-80 degrees F
    with 50% relative humidity.


  • Before loading paper, fan the sheets on all four sides.
    This creates a small layer of air between the sheets which should help
    printer feeding mechanisms.


  • Do Not Stack Materials such as Designer Gold, Designer Silver,
    Super Color Gloss, Super Color Photo, Super Color Photo Cards,
    Super Color Shrink. Feed into printer one sheet at a time.


  • Load Materials according to the instructions in the
    printer owner's manual.
    Recommended feeding is generally to use the manual feed tray,

     or the straightest path through the printer.


  • Upon Completion, the unused material should be stored in a
    closed package, re-sealed and stored flat.




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Document Security Paper and Features

FEATURES & PRODUCTS GRID
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Click for Products and Features Grid

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Glossary of Paper Terms
  • Acid Free Paper
    Paper manufactured to a neutral pH reading (7).
    Used for fine art prints, limited edition printing, scrapbooking


  • Antique Finish
    Random surface quality created by "felts" in the manufacturing process


  • Brightness
    Light reflecting property of paper when measured under a specially calibrated blue light.


  • Basis Weight
    The weight of one ream of paper (500 sheets) when cut to the industry standard for that specific grade of paper.


  • Bristols
    Solid or laminated heavy-weight printing paper made to a thickness of .006" or higher. Bristols are often used for printed items that require repeated handling.


  • Bulk
    The thickness of paper when compared to its weight. A high bulk paper is thicker but less compact than a low-bulk paper of the same weight and size.


  • Calendering
    Part of the paper manufacturing process where the paper "web" passes between polished metal rolls. This increases the paper's smoothness and provides a uniform thickness (caliper).



Thermal Paper ~ Shelf Life - Storage
Thermal Paper Information as supplied to us by Appleton Papers.


Unit Conversion Calculator Tool
Hamah

Web based Unit Conversion Calculator Tool that allows conversion of units in 20+ categories such as
Weight, Heat and Temperature, Pressure, Volume, Area, Density, Time, Speed, Velocity, Force, Angle, Power, Energy, Frequency, Computer, 
Electric Current, Electric Capacitance, Illuminance, Luminance, Cooking, Shoe Sizes, Currency Converter, Calender Converter etc.



Educational Material

Click to Enter
This fascinating site reveals the traditional methods of making various types of prints. We think you'll find this information interesting.
Visit this site. What's A Print?


Additional Definitions of Standard Paper Terminology and Abbreviations



Bond 
Uncoated "plain" paper - free from impurities.
Also referred to as "free sheet." 
Recycled Paper manufactured from the waste paper stream.
All Micro Format recycled products contain a minimum of
100% recycled material including 40% post consumer waste 
Waste Paper Stream Waste paper created during the paper manufacturing process 
Post Consumer Waste Processed Paper that has been re-used in manufacturing new paper products  
Carbonless Paper coated with special encapsulated chemicals that produce
a duplicate copy without the use of carbon paper 
Thermal A paper coated with special chemicals that produce
an image when heat is applied 
Groundwood A low cost paper that contains unprocessed wood fibers. 
Symbol "#" "pound" - used to describe paper weight
Click for additional information on PAPER WEIGHT  
Symbol "M" Meter - 1 meter=39.37 inches 
Symbol "mm" Millimeter - 1 inch=25.4 millimeters 
Symbol "sc" Self Contained Paper
paper that can be imaged in a printer without the use of a ribbon  
Symbol "cb"  Coated Back - Carbonless Paper (part 1) 
Symbol "cfb"  Coated Front and Back - Carbonless Paper
internal part in a multipul part form 
Symbol "cf" Coated Front - Carbonless Paper (last part in set) 
Symbol "sccb" Self Contained sheet with carbonless coating on back
normally used as part one in a multi part set in an impact printer
using no ribbon 
Symbol "sccb/cf" Carbonless set - Self Contained Coated Back Sheet Part 1
Coated Front Sheet Part 2 
Symbol "w" Paper Color - White 
Symbol "c" Paper Color - Canary 
Symbol "p" Paper Color - Pink 
Symbol "g" Paper Color - Green 
Symbol "b" Paper Color - Blue 



ADDITIONAL COVERSION TABLES


How to Convert to Metric

Length and Distance

When you knowMultiply byTo Findinches2.54centimetersfeet30.480centimetersmiles1.609kilometerscentimeters0.394inchesmeters1.094yardskilometers0.621miles 


Weight
When you knowMultiply byTo Findpounds0.454kilogramstons0.907metric tonskilograms2.205poundsmetric tons1.202tons 

Decimal Equivalents


1/64=0.0156251/16=0.06251/8=0.1253/16=0.18751/4=0.255/16=0.31253/8=0.3757/16=0.43751/2=0.59/16=0.56255/8=0.62511/16=0.68753/4=0.7513/16=0.81257/8=0.87515/16=0.93751=1.0


Temperature
When you knowDo ThisTo FinddegreesFahrenheitSubtract 32multiply by 5/9degreesCelsiusdegreesCelsiusMultiply by 9/5then add 32degreesFahrenheit 
Surface or Area
When you knowMultiply byTo Findsquare feet0.093square meterssquare miles2.590square kilometerssquare centimeters0.155square inchessquare kilometers0.386square miles


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