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