5
FORMULA FOR CALCULATING WEIGHT (METRIC):
5 FORMULA FOR CALCULATING WEIGHT (METRIC):
5.1 Weight (Kgs.) per 1000 bags = [width (m.m) x length (m.m) x Microns] / 533250note: Size must include the lip and any gusset material. Above formula does not include any allowance for wrapper or cartons.5.2 To convert gauge to microns, divide by 4
5.3 To convert ins. to m.m, multiply by 25.4
5.4 To convert lbs. to kg, divide by 2.2046
6 SPECIFYING SIZE:
6.1 Size should always be specified with WIDTH then LENGTH
Carrier Bags
6.2 Punched out or aperture handle style - size includes the handles. Clip close, plastic handle or rope handle - handle extends above the specified size of the bag.
6.3 Vest style - specified size includes handle and skirt weld, top and bottom.
Bags
6.4 Bottom seal bags - the effective length may be shorter than the nominal length, depending on the type and position of the bottom seal.
6.5 Self-seal bar closure ("Minigrip" style) - specifies style is the internal dimensions, full width then depth from below seal strip.
6.6 Lip on low/linear bags - all lips to be specifies separately after the bag dimensions excluding the lip.
6.7 Bottom gussets - measurement to be specified separately and be the full opened out size (not the "dip-in" measurement)
6.8 Side gussets - the size for side gusseted bags should be shown as follows: Face width the face width + 1 overall gusset width then length.
7 PACKAGING:
7.1 All materials to be packaged in such a way as to protect the contents from dust, dirt, moisture and contamination.
