|
DIMENSION TOLERANCES: POLYETHYLENE and POLYPROPYLENE
LENGTH TOLERENCES
|
INCHES
|
PLUS MINUS
|
RANGE
|
MAX GAUGE
|
MIN GAUGE
|
|
up to 24
|
.2500 -.0000
|
.250
|
96.750
|
12.00
|
|
24+ to 48
|
.3750 -.0000
|
.375
|
|
|
|
48+ up
|
.7500 -.0000
|
.750
|
|
|
WIDTH TOLERENCES
|
INCHES
|
PLUS MINUS
|
RANGE
|
MAX GAUGE
|
MIN GAUGE
|
|
up to 24
|
.125 -.0000
|
.250
|
96.750
|
12.00
|
|
24+ to 48
|
.250 -.0000
|
.250
|
|
|
PHYSICAL TOLERANCES for POLYETHYLENE and POLYPROPYLENE
1). DOWN WARP: No more than 1/4" on gauges .055 & below No more than 1/8" on gauges above .055
2). UP WARP: None allowed on any gauge
3). EDGE CURL: 1/8" up curl, 1/8" down curl
4). WAVY EDGES: No more than 3 per any 24" of length, 1/8" max curl height measured from flat a surface
5). TREAT: Minimum treat level to be 56 dyne
PHYSICAL TOLERANCES for PAPER/SQUARE CUT POLY SHEET
No sheet will be out of square more than +/- 1/32" for each paper/square cut piece
SQUARENESS
A physical measurement is taken diagonally across all corners of the sheet as shown, with the difference not to exceed 1/4 inch or a maximum of 1/6 inch difference between the two diagonal measurements in a 24" x 24" sheet.
|
|
|