Stock Forms

• What are the two primary materials used to make paper?

  Wood pulp and recycled material
• Paper may be used in packaging, drawing, sketching, or model making.
• The mechanical, physical, or optical properties of materials define how they behave in use
• What are the three common stock forms of paper?

  Sheet, roll, and ply
• Ply refers to the number of layers used in paper.
• Buying paper in a ream allows the buyer to calculate how much they are getting accurately
• What unit is used to measure the thickness of paper?

  Grams per square metre (gsm)
• Match the paper size with its dimensions:

  A4 ↔️ 297 mm × 210 mm

  A3 ↔️ 297 mm × 420 mm
• A0 is the largest common paper size, and A4 is the most common
• Which organization defines the B series paper sizes used in the printing industry?

  ISO
• C sizes are used for envelopes and are defined in ISO 269.
• What is the geometric mean of the areas of A and B sheets?

  Area of C sheets
• Foolscap paper, measuring approximately 203 mm × 330 mm, was used before the introduction of ISO 216
• What is the American paper size equivalent to foolscap called?

  Letter size
• Calculating the amount of material needed involves working out the cross-sectional area of shapes.
• How is the area of a square calculated?

  Length × width
• Wastage is calculated by subtracting the area used from the area owned.
• Steps to calculate paper wastage

  1️⃣ Calculate the area of the larger sheet

  2️⃣ Calculate the area of the smaller piece

  3️⃣ Divide the larger area by the smaller area

  4️⃣ Round down to the nearest whole number

  5️⃣ Multiply the number of pieces by the smaller area

  6️⃣ Subtract the used area from the owned area