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Food packaging bags (film) inspection main executive standard: GB/T4456-1996 packing polyethylene blown film, GB12025-1989 high density polyethylene blown film, QB/T2461-1999 packing degradable polyethylene film, GB9683-1988 composite food packaging hygiene standards, GB9687-1988 "food packaging polyethylene molding product health standard", GB9688-1988 "food packing polypropylene molding product health standard" and so on.
 
Food packaging bags (film) inspection items are divided into five categories -- -
 
Appearance may not have to use the hindrance of bubble, perforation, water lines, critical reinforcement, bad plasticizing, fisheye frozen block of fault, etc. Specifications, width, length, thickness deviation should be within the scope stipulated by the deviation.
 
Degradation in performance depending on the type of degradation product is different, can be divided into photodegradation, biodegradable, environmental degradation. Degradation of performance is to reflect the product's ability to be disposed in the use of acceptance, if the degradation performance is good, bags (film) will be under the joint action of light and microorganism, fracture, differentiation and degradation, eventually become debris, to be accepted by the natural environment, If the degradability bad environment will not be accepted, forming a "white pollution".
 
Physical and mechanical properties including tensile strength, elongation at break, is it reflect product in use process under tensile ability, if this is unqualified, in use process food packaging bags (film) is prone to rupture, damage phenomenon.
 
Health performance including evaporation residue (acetic acid, ethanol and n-hexane), potassium permanganate consumption, heavy metal, decolorizing test. Evaporation residue is reflect the food packaging bags in use process in vinegar, wine, oil and other liquid precipitation when the possibility of residue, heavy metals, residue and heavy metal can produce bad effects on human health, moreover residue will directly affect food color, aroma, taste and other edible quality.