PE bag in our daily use, but how did we get to the detection of PE bags? Here we share experiences:
First of all see if the print is fading; static function, sealing features, open specification function, bone-mouth opening and closing (5) suitability of smooth, displacement-free, elastic. Then there is the identification, inspection can be divided into the following 3 points:
First, sampling inspection: drawn from a batch of products to all individual parts of individual identification, and according to the sample survey results to determine the eligibility of bulk products activity, is a typical calculation trodding on the job.
Applies to the following cases: 1, on the feature identification for destructive experiments; 2, lot size is too large, not conduct a full inspection; 3, needs a longer inspection time and higher inspection costs; 4, allow a certain degree of defect exists.
Terminology relating to sampling inspection:
1, the identification batch: products gathered together as the same tests on target; typically, a production grant is a check batch. Can be produced in a batch of dividend a number of identification, however, an inspection cannot include more than one production batch, or combination of identification.
2, lot size: units that are contained in the batch number;
Number 3, sample: quantity of product from the batch;
4, the number of unqualified judge (Re): abbreviation for Refuse, reject;
Number 5, judgement (Ac): abbreviation for Accept, namely the accreditation or acceptance;
6, the acceptable quality level (AQL): abbreviation for Acceptable Quality Level. Normally, the unqualified product rate is acceptable.
Full inspection (inspection): submission of PE bags product or materials to inspection inspection approach without losing the most.
Applies to the following conditions:
1, small batch identification simple and low cost;
2, the product must be qualified;
3, if you have a small number of unqualified, may cause this product to produce a lethal effect.
4, samples are usually demand full inspection.