acceptance sampling & acceptable quality level
TRANSCRIPT
MY PROFILE
Name : Abdullah Al Mahfuj.Department : Textile. Program : B Sc in Textile Engineering .ID : 142014007Green University of Bangladesh .
Name of My Presentation
Acceptance Sampling&
Acceptable Quality Level
LETS START WITH MYJOURNEY....
• Objectives.• What is Double Cloth?
• Classification of double cloth
• Self stitched double cloth
SAMPLING Sampling is the act, process, or technique of
selecting a suitable sample
Acceptance Sampling It is a decision making tools . defined as sampling inspection in which decisions are
made to accept or reject products. A form of inspection applied to lots of items before or
after a process to judge to predetermined standards
What is AQL?
AQL means Accepted Quality Level It is one of the most used terms in readymade
garments industry when it comes in consideration to quality.
most of the acceptance decisions of garment export order shipments are made on the basis of AQL based sampling plans.
It is expressed in a percentage number of average defective items
Types of AQL System Followed in Apparel Industry
• There are total six types of acceptable quality level (AQL) system followed in garment manufacturing industry which are pointed out in the below:
AQL-1.0%, AQL-1.5%, AQL-2.5%, AQL-4.0%, AQL-6.5%, AQL-10%.
The defects which are found during inspection are mainly classified into four categories:
Critical: Must be 100% accurate. There is no range. Major: Normally 2.5% Minor: Normally 4% Slight: Normally 6.5%
Sampling Plans
• Sampling Plans specify the lot size, sample size, number of samples and acceptance/rejection criteria. Sampling plans involve
Sampling plans
Attribute sampling
Single sampl
ing
Double Sampli
ng
Multiple Samplin
g
Sequential
Sampling
Variable sampling
AQL Chart for Garment Industry