Preparation And Handling Of Primary Standard
1.0 OBJECTIVE:
To
establish procedure for preparation and handling of primary standards.
2.0 SCOPE:
This
procedure is applicable for primary standards which are to be used for
standardization of volumetric solution & calibration of instruments.
3.0 RESPONSIBILITY:
3.1
Doing: Technical
Assistant/ Executive.
3.2
Checking:
Executive/ Manager.
4.0 ACCOUNTABILITY:
4.1
Head of the Q.C Department.
5.0 PROCEDURE:
5.1
Select A.R. grade
of reagent/ chemical preferably certified.
5.2
Distribute the
sufficient quantity of the material as required for one time use into
predefined no. of vials & record it.
5.3
Give the reference
number to primary standard as follows:
X/OO/A/BB
Where,
X corresponds the
first alphabet of material.
OO corresponds to Sr.
no. from 01 onward to have details of total primary standard in quality control
laboratory.
A corresponds the
last digit of year in which primary standard is prepared.
BB corresponds the
no. of vial prepared for particular primary standard starting from 01.
5.4
Store the material
in light resistant glass vials closed with rubber bungs and sealed with
aluminium seal.
5.5
Label the vials
with the following details:
5.5.1
Name of primary standard.
5.5.2
Ref. No.
5.5.3
Date of
preparation.
5.5.4
Use before.
5.6
Store all vials of
primary standard in A.C. control area as per Annexure-I.
5.7
For every
calibration/ standardization take always fresh and sealed vial of primary
standard and record it in respective bin card as per annexure II.
5.8
Destroy the
expired vials of primary standard after completion of shelf life and keep the
record as per Annexure-II.
6.0 REVISION LOG:
|
Revision No. |
Effective Date |
Reason |
|
00 |
|
New
SOP |
7.0 REFERENCES:
7.1
Not Applicable.
8.0 ANNEXURES:
Annexure 1: LIST
OF PRIMARY STANDARD.
Annexure 2: PRIMARY
STANDARD BINCARD.
LIST
OF PRIMARY STANDARDS
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Sr.# |
Name of primary standard |
Ref. No. |
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Annexure:
2
PRIMARY
STANDARD BINCARD
|
Name
of Primary Std.: Batch
No.: Date
of preparation: Use
before: No.
of Vials prepared: Prepared
by: |
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Sr.# |
Vial Ref. No. |
Date of issue |
No. of Vial issued |
Balance quantity |
Issued by |
Remarks |
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No.
of vials remaining on expiry: No.
of vials destroyed: Vials
destroyed on: Vials
destroyed by: |
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9.0 ABBREVIATIONS:
|
Abbreviation |
Expanded Form |
|
S
|
Standard
operating procedure |
|
& |
And
|
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% |
percentage |
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