Understanding and the Important Role of Inspection in Quality Control Process

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Understanding and the Important Role of Inspection in Quality Control Process

Understanding and the Important Role of Inspection in Quality Control Process

Based on the great dictionary of Indonesian, inspection is an inspection done carefully, the inspection carried out directly related to regulations, duties, etc.

Well, if word of this inspection we translate into the quality control, then can we interpret that the inspection is an examination conducted closely related to a product that is produced to conform to the standards and rules that have been defined on the product.

On this occasion, let’s discuss more the inspection and do in in the management of the quality control process.

Definition Of Inspection

In the management of quality control. Inspection is an element that has an important role. This inspection is required to ensure the quality of products can be produced following the provisions and also standard, so the results of customer satisfaction can be maintained with good.

In addition, the inspection also able to reduce the range of the cost of manufacturing because of the poor quality of production, such as costs of returning the product from the consumer, the cost of re-creation in the quantity are many, and also the cost of disposal of the material is no longer compatible with the applicable provisions.

Scope Of Inspection

In the practice of their implementation in the world of manufacturing, the unit of work associated with the inspection and testing has responsibility in assessing any quality raw material that is sent by the supplier and also the finished goods produced by the company so following the characteristics and also the applicable standards.

Unit of work that is given responsibility in detecting and also sort out the various components that are supplied by the supplier or semi-finished products from other work units to conform to the quality standards that have been determined or commonly referred to as incoming quality control (IQC).

While the unit of work that is given the responsibility of conducting inspections and testing on the finished product produced by his own company generally will be called Outgoing quality control or OQC.

How To Work Inspection In The Quality Control Process

The inspection only performs measurements related to the level of compliance with the standard and also the characteristics of the product have been determined and separate the various products that are no longer appropriate, as well as finding the root of the problem related to this discrepancy.

In conducting research related to the problems of this discrepancy, there is a certain party or other work units that perform the task.

Inspection has become the most widely used method by a manufacturing company in achieving its uniformity of product quality and also the standardization of the related products.

If the product is no longer compatible with the provisions of the standard and also the specification, then the product will be rejected and the responsible party should be able to do the corrective action so that in the future no longer found a discrepancy of the standard.

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Purpose Does The Inspection

There are at least five purposes does the inspection, i.e.:

  • To detect and also removes raw materials that are disabled before entering on the execution process of the product
  • To detect product defects and also a low-quality product before sent to customers
  • To give you notice on the management before any quality problems turn out to be more serious, so that the management can take a variety of actions that are needed
  • To prevent any delay in delivery caused due to quality problem with how to reduce the complaints from the customers.
  • To improve the quality and reliability of a product

Benefits of Inspection in Quality Control

  • Distinguish lots of good products and also products that are indeed flawed
  • To find out if there are changes in the product maker process.
  • To find out whether a production process is or close to the limit of a specification
  • To assess a product quality
  • To measure the level of measuring instruments in the production process
  • To measure the level of ability of a process

Types of inspections in quality control management

Inspection can be divided into several types, which include Floor Inspection, Centralized Inspection, Combined Inspection, Combined Inspection, Functional Inspection, First Piece Inspection, Final Inspection, and Pilot Piece Inspection.

1. Floor Inspection.

Floor Inspection is an inspection carried out in the production control process. In this Floor Inspection, the inspector will conduct examinations related to material and semi-finished products on the production of human beings or machines.

Later, the inspector will conduct an examination of a machine or worker to the machine or other workers. This examination method is also able to detect the problem earlier before the product will be produced in a larger amount.

2. Centralized Inspection.

This type of inspection is carried out at a certain location or is focused on a predetermined place. All tools and also testing machines will be placed at the location devoted to testing. All examples of products that will be tested for a special place for testing

3. Combined inspection.

Just as the name implies this type of inspection is a combination or a combination of the Floor Inspection and centralized inspection.

4. Functional Inspection.

This type of inspection is more focused on functional products. For example on checking a car function, the inspectional function inside will check the speed of the car speed following the provisions without having to know every component of the making of the car.

In general, this type of inspection is indeed done after a product has been made.

5. First Piece Inspection

First Piece Inspection is an inspection type carried out in the first unit. The first unit can be in the form of a product substitution, the first unit on the replacement of the work tool, or the first unit in the change of production machine parameters.

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6. Pilot Piece Inspection

Pilot Piece Inspection is an inspection that is done on new products or newer models.

7. Final Inspection.

Final Inspection is a type of inspection carried out on JAD products. This type of final inspection will examine a product’s characteristics more thoroughly, both in its function or appearance. This type of inspection is done before a product is sent to consumers.

Inspection method in quality control management

There are at least two methods in conducting inspections, namely the inspection method carried out by 100%, and also the inspection method made sampled.

1. 100% inspection method

The 100% inspection method is an inspection method carried out in all the number of products produced by production and also the testing techniques used and may not have destructive properties.

This 100% inspection type requires more workers and also costs higher than generally. This type of inspection method is also generally applied to products that have high prices.

2. Sampling inspection method

The sampling inspection method is an inspection carried out by the number of samples or an example of the number of products made within a certain period. The type of sample taken is generally random or random sampling, which will later be considered to represent the entire product population, which is generally a model, worker, engine, or a certain period.

If in the inspection, there will be a defective product, then all products related to the product will be rejected and must be reworked or must be re-conducted.

Examination or inspection This sampling costs more muran and also faster but has the risk of sampling errors. But generally, these errors can still be estimated.

In some cases testing is more destructive, namely testing that can damage the product concerned, this sampling inspection will be highly recommended.

Generally, this side method is also carried out on products that are considered less precise and also do not have expensive prices.


Thus the explanation of us about the understanding and important role of inspection in the quality control process in manufacturing companies. This full explanation will be very useful and must be considered by every management within a manufacturing company so that every production activity runs more efficiently and smoothly.

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