Hii hello everyone. During the inspection of AQL (rubber stopper ,vials,glass barrels ,cartons,pil(product information leaflet),labels ) what parameters we have checked please tell me
Generally, for testing of packaging materials for AQL, please define the expected defects into three categories such as Critical, Major, and Minor. The Acceptance criteria for AQL determination should be as follows,
Critical defects- Not acceptable -0% acceptable in any consignment
Major defects- Acceptable at not more than a certain percentage, To be decided based on the type of packaging materials being tested for AQL, such as 0.5%, 1%, 2%
Minor defects - Acceptable at not more than certain percentages, such as 2 to 5%. To be decided based on the type of packaging material being tested for AQL.
The AQL parameters could be color shade variation, Variation in dimensions, Non-uniformity in the texture, presence of black particles or extraneous matter adhered to the units, Broken pieces, Deshaped units, Damaged boxes/cartons, Pinholes in foils, Improper pasting to the cartons, Mix-ups etc.
The limits of AQL acceptance criteria should be based on the criticality of usage of the materials.
For example, Primary or secondary packaging materials, Printed packaging materials, etc.
Thank you so much sir
You are always welcome.
Hi, just to clarify to avoid confusion:
Does the 0% in critical defects refer to the actual quantity of critical defects in the sample?
Or does the 0% refer to the actual AQL value, as understood for major and minor defects (0.5% to 5%)?
It is my understanding that in acceptance sampling, it is often expected to have 0 critical defects identified in the sample drawn; however, that alone does not give certainty that the population has 0% critical defects.
Actual AQL for critical defects should be lower than AQL for major defects, but cannot be 0% since that would require a 100% inspection of the material.
Just asking to avoid confusion.
Yes, I agree with you.
Any defect (Critical, Major, Minor) must not be present more than the limits established in the samples drawn from the consignment, and not in the entire consignment.
Therefore, the sample must be representative of the entire consignment. Hence, there are different sampling plans depending upon AQL levels and the criticality of the defects. There are Military standards or equivalent standards of sampling plans and AQL.
AQL (Acceptable Quality Limit) Sampling is a method widely used to define a production order sample to find whether or not the entire product order has met the client’s specifications. Based on the sampling data, the customer can make an informed decision to accept or reject the lot.
Mil-Std 105e is an attribute sampling plan. The standard contains tables and reference material that you can use to plan and conduct inspections. The US military standards obsoleted this in February 1995. … Many government specifications contain requirements to use 105e during inspection.
MIL-STD-105 was a United States defense standard that provided procedures and tables for sampling by attributes based on Walter A. Shewhart, Harry Romig, and Harold F. Dodge’s sampling inspection theories and mathematical formulas.
MIL-STD-105E is a standard sampling methodology that has been established for the acceptance or rejection of lots based on the evaluation of item attributes. Based on one or more samples taken from a batch or lot containing N units, the batch or lot is either accepted or rejected.