SOP for Out of Specification | OOS Investigation Flowchart

To lay down the procedure for out-of-specificationOOS investigations shall be divided into Laboratory Investigations (Initial and Secondary) and Manufacturing investigations. 

3.0 RESPONSIBILITIES

3.1 Chemists of the QA department to follow the SOP.

3.2  Head – QA complies with SOP.

4.0 Out-of-Specification Procedure

4.1.1 GENERAL

4.1.1 OOS investigations shall be divided into Laboratory Investigations (Initial and Secondary) and Manufacturing investigations.

4.1.2 If any packing material is out of specification in the description test/print/text, Quality Assurance shall decide whether the investigations are required or not required.

4.1.3 The minor deviations in dimensions of packing materials, which were found suitable on the machine suitability test on the packing line, shall be approved for use.

4.1.4 OOS shall be registered in “Investigation Form” format.

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4.2  Laboratory Investigations

4.2.1 This investigation should include an initial assessment of the accuracy of the laboratory’s data The analyst and the supervisor conduct a laboratory investigation to determine whether or not the out-of-specification is assignable to the testing laboratory.

4.2.2 On notification of an OOS result, the head Laboratory and Analyst shall jointly conduct an initial investigation

4.2.3 The first phase of such an investigation shall include an initial lab investigation of the accuracy of the laboratory data before test solutions are discarded, whenever possible.

4.2.4 Re-testing shall be done from the original sample unless otherwise the original sample is consumed or spilled. Re-sampling shall be done if an original sample is consumed or spilled.

4.2.5 Assignable cause found during the investigation, the same analyst shall do the re-testing in duplicate from the original sample.

4.2.2 If samples pass the tests, in such cases the original OOS result may be invalidated the cause of OOS shall be documented and the subjected batch shall be released.

4.2.3 If a sample fails the tests, in such cases the original OOS results shall be valid and documented and the subjected batch shall be rejected.

4.2.4 If the assignable cause is not found, in such cases secondary lab investigation along with manufacturing investigations shall be done to find out laboratory error or manufacturing error, respectively.

4.2.5 Investigation for laboratory error shall be done as per the “Laboratory Investigations report” format.

4.2.6 If the assignable cause is found a laboratory error like sample preparation, glassware, instrument malfunction, or any other during an investigation, the different analysts shall do the re-testing in duplicate.

4.2.7 If samples pass the tests in such cases the original OOS result may be invalidated the cause of OOS shall be documented and the subjected sample shall be released.

4.2.8 If the sample fails the tests in such cases the original OOS results shall be valid and documented and the subjected sample shall be rejected.

4.2.9 If no assignable cause is found as laboratory error or manufacturing error, in such case different analysts shall do the re-testing three times.

4.2.10 if samples pass the tests, in such cases the original OOS result may be invalidated the cause of OOS shall be documented and the subjected sample shall be released.

4.2.11 If a sample fails the tests in such cases the original OOS results shall be valid and documented and the subjected sample shall be rejected.

4.2.12 All steps leading to laboratory investigations shall be documented and a review of each failure shall be correlated to the occurrence of a similar failure in the past.

4.2.13 A corrective and preventive action plan shall be prepared depending upon the nature of the failure which caused OOS.

4.3 Manufacturing Investigation

4.3.2 Out-of-specification results will be informed to the manufacturer.

4.3.3 If the manufacturer is not satisfied with the results he can perform a joint analysis. Reporting will be done as per the “Joint Analysis Report” format.

4.4 Numbering System

4.4.2 The first three characters shall be OOS which denotes ‘Out of Specification” which is followed by ‘/’ (oblique) and the current year written as (XXXX) e.g. 2013. 

4.4.3 The year shall be followed by ‘/’ (oblique) and the sequential number of OOS.

4.4.4  A typical example for the numbering of the first OOS for the year 2013 shall be OOS/2013/01.

4.2 REPORTING AND DOCUMENTATION

4.2.2 Copies of the final OOS Investigation Form shall be distributed to the appropriate department.

4.2.3 Investigation and resolution of all OOS test results is a priority matter, hence initial laboratory investigations shall be completed within 03 working days.

4.2.4 In case of confirmed OOS results complete investigation i.e. Secondary Laboratory and manufacturing investigation (to identify the cause of failure) shall be completed within 20 calendar days.

4.2.5 A record of OOS shall be maintained as per the “Format for Record of Out of Specification” format.

 5.0  ABBREVIATIONS

5.1    SOP:           Standard Operating Procedure

5.2       OOS:           Out Of Specification

5.3       QA:           Quality Assurance

5.4       QC:           Quality Control

5.5       No.      :           Number

6.0 REFERENCE:

6.1   Nil

RELATED FORMATS 

4.2  REPORTING AND DOCUMENTATION

4.2.2 Copies of the final OOS Investigation Form shall be distributed to the appropriate department.

4.2.3 Investigation and resolution of all OOS test results is a priority matter, hence initial laboratory investigations shall be completed within 03 working days.

4.2.4 In case of confirmed OOS results complete investigation i.e. Secondary Laboratory and manufacturing investigation (to identify the cause of failure) shall be completed within 20 calendar days.

4.2.5 A record of OOS shall be maintained as per the “Format for Record of Out of Specification” format.

7.0 Flow Chart for Investigation of Out-of-Specification Results

OOS INVESTIGATION FORM

OOS No.

 

Date Reported

 

Description of OOS

 

Specification

 

Test Result

Sample

Pass / Fail / Investigation required / Not required

Preliminary Investigation Done on (date) / by

 

Assignable cause during Phase I

Yes                              No

Phase II Investigation is done on (date) / by

 

Final conclusion

Pass / Fail

Corrective Action

 

Preventive Action

 

Final Review and Closing:

 

                                                                                                        Manager-Quality Assurance

LABORATORY INVESTIGATION REPORT

(This format should be used for documentation of investigation)

OOS No.                                                                      

Name of Sample                                                    

Lot Batch No.                                                           

A.R. No.                                                                      

Mfg. Date                                                                    

Exp. Date                                                                     

Specification No. & Review No. :

Test in which O.O.S. result is found:

Result :

Specification Limit (of the concerned test):

Analyst:

Date of Analysis:

Date of start for Investigation:

1.0 Initial Lab Investigations

DESCRIPTION

OBSERVATION

Samples appearance

 

Weighing Errors (sample weight & measurement)

 

Calculation Errors (also the completeness of raw data)

 

Protocol review

 

Another observation if any

 

2.0 Assignable cause / Non-Assignable cause

If cause is non-assignable

Proceed for secondary Lab investigations

If the cause is assignable Specify the cause (s) & Re-test in duplicate

 

Re-test in Duplicate

Results

Re-test -I

 

Re-test-II

 

 

   




 3.0 Secondary Lab Investigation:

DESCRIPTION

OBSERVATION

Errors associated with dilutions, dilutions, Filters, conditions, etc. that are Required by the corresponding analytical Procedure

 

Review of critical steps followed during analysis

 

Whether reference working standards used in the Analysis are correct (in terms of appearance, Expiry date potency, LOD / Water, and its storage) And whether assay values are determined correctly.

 

Whether properly prepared test solution (s) or volumetric solution(s)

 

 

Any malfunctioning of the instrument

 

Out-of-calibration analytical instruments were used in the analysis.

 

Lab glassware used.

 

Review specifications whether it is updated or not.

 

Any loss of standard solution or test solution during preparation.

 

Any other techniques in analytical procedures were not appropriately applied during testing.

 

Whether the analysis is performed by any other alternate validated Procedure.

 

Whether the analyst is trained to perform the test.

 

Whether the environmental condition is suitable to perform the test.

 

Other observations if any.

Attach extra sheet

FORMAT FOR RECORD OF OUT OF SPECIFICATION

S. No.

OOS Number

Material Name

(Sample )

Final Status

(Approved / Rejected)

OOS Closed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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Out of Specifications (OOS) results

Handling of Out of Specifications (OOS) results for samples in XYZ Limited. It is the policy of XYZ Limited that written procedures shall be followed to carry out laboratory investigations/product re-test assign probable cause and initiate appropriate corrective and preventive action for out-of-specification results of samples.

This procedure is applicable whenever any out-of-specification result is observed.

Flow Chart for Investigation of Out-of-Specification Results

Flow Chart for Investigation of Out of Specification



BANTI SINGH

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