Clamshell boxes KS 17 – with fastening ribbons

The following production tolerances are to be taken into consideration:

Quantity tolerance for paper
± 3% however a minimum of ± 5 sheets per sales unit

Quantity tolerance for board, corrugated board
± 3%

Quantity tolerance for enclosures, folders, boxes
± 8%

Weight (grammage) tolerance
± 7%

Thickness (calliper) tolerance
Paper and board up to 300 gsm ± 10%
Board > 300 gsm ± 5%
Corrugated board ± 8%

Dimensional (size) tolerance for paper and board material
Sizes with plus tolerance max. ± 7 mm
Cutting tolerance 4-sided angular cut ± 2 mm

Dimensional (size) tolerance for corrugated board
Cutting tolerance ± 3 mm

Dimensional tolerance for reeled paper
Roll width ± 5 mm, running metres ± 3%

Dimensional (size) tolerance for enclosures, folders, boxes
Plus tolerance up to 5%

Dimensional (size) tolerance for envelope enclosures
Angle tolerance ± 2 mm, size tolerance ± 3 mm

Dimensional (size) tolerance for tubes
Diameter and tube wall thickness ± 0.3 mm,
lengths ± 10 mm

Perpendicularity tolerance in the case of cuttings with 4-sided angular cut
Angle tolerance 0,6% however a minimum of 3 mm
for 1 m length

Planarity tolerance for corrugated board
Planarity (flatness) tolerance ± 15 mm for 1 m length

Spots (fibre residues and pulp impurities)
Spots with a diameter of less than 0.4 mm are considered insignificant. Mounting board standard specifications stipulate that maximum two spots up to 0.9 mm in diameter each are acceptable per m²

pH tolerance
± 0.5 variation on the pH scale (pH 7.0, pH 6.5 and 7.5 are also permitted)

Deviating tolerances are to be agreed upon separately.