028-Procedure for Calibration.pdf

Pearl GTL Project

LINDE ENGINEERING

Shell Project No: HP-3000-QAT Contractor Project No : 5887

Project Document Number: T- 4.250.915 Project Rev.: B Page 2 of 14

Purchase Order Number:

2MH127

Tag/Item Number(s): N/A

Unit(s): ASU

PCWBS: Z

QSGTL PEARL PLANT C2 AIR SEPARATION UNITS CONSTRUCTION

E B 09.11.08 Ready for Construction FB EO AG RFC

D A 09.10.08 Issue for Review FB EO AG IFR

C O 02.12.07 Issued for Company Comments BR UA MC /ZG ICC

B Issued for Review MS MC ZG IFR

A Issued for Internal Review MS MC ZG IIR

GAMA Rev.

Project Rev

Date Description Prepared

By Checked

By

Approved By

Status

No. No. ORIGINATOR

LINDE ENGINEERING AG

Document Title:

PROCEDURE FOR CALIBRATION

Contractor

Gama Qatar Co. W. L. L.

Document No. LOC470

GAM PRO QAC GTL 028 E

Org.

Code

Doc.

Type

Disc. Code

Geogr. Area

Seq.

No

Rev. No

Vendor Code

Project Document Number: T-4.250.915

Rev No: B

Doc. Title : GAM-PRO-QAC-GTL-028 Rev. E PROCEDURE FOR CALIBRATION

Date : 09.11.2008

T-4.250.915 Rev. B Page 4 of 14

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TABLE OF CONTENTS

1. SCOPE ________________________________________________________________________ 5

2. PURPOSE _____________________________________________________________________ 5

3. REFERENCES _________________________________________________________________ 5

4. DEFINITIONS _________________________________________________________________ 5

5. RESPONSIBILITIES ____________________________________________________________ 6

6. PROCEDURE __________________________________________________________________ 6

6.1. GENERAL REQUIREMENTS _______________________________________________________6

6.2. IDENTIFICATION OF INSTRUMENTS ______________________________________________6

6.3. CALIBRATION OF INSTRUMENTS _________________________________________________7 6.3.1. Periodic Calibration ____________________________________________________________________ 7 6.3.2. Re-calibration _________________________________________________________________________ 7

6.4. PRECISION OF CALIBRATION ____________________________________________________7

6.5. METHOD OF CALIBRATION ______________________________________________________7

6.6. DOCUMENTATION OF CALIBRATION _____________________________________________8

7. ATTACHMENTS ________________________________________________________________ 9


Date : 09.11.2008

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1. SCOPE

This procedure describes the criteria and methods that shall be applied by GAMA in ensuring the accuracy of the measuring and test instruments that shall be used in the erection activities of the QSGTL Pearl Plant C2 Air Separation Units.

2. PURPOSE

The purpose of this Quality Control Procedure is to set a guideline of the testing requirements as well as the responsibilities of implementing this procedure.

3. REFERENCES

T.4.096.674 : Calibration of Testing and Measuring Tools and Equipment PQP-08.F01 : List of Measuring and Test Devices Subject to Calibration PQP-08.F02 : Calibration Label

Relevant Manufacturers Manual for equipments. Also all relevant ITPs and QCRs.

4. DEFINITIONS

Company : QSGTL and/or its PMC

Contractor : Linde Engineering AG

Sub Contractor : Gama Qatar

Project : QSGTL C2 ASU PEARL Construction Works

ITP : Inspection Test Plan

QCP : Quality Control Procedure

QA/QC : Quality Assurance / Quality Control Department

ITL : Independent Testing Laboratory

MRR : Material Receiving Report

HSE : Health and Safety and Environment


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5. RESPONSIBILITIES

The QA/QC Manager is responsible for monitoring and implementing the following activities:

Establishing the calibration schedule for all equipment included in the system.

Keeping a record of all calibrated instruments.

Ensuring that instruments are calibrated at all times during the work.

Storage of calibration instruments, which are defined as secondary "MASTER".

Master instruments are generally stored in a locked-up cabinet under the control of the QA/QC Manager. Particularly, over-sized instruments shall be kept at adequate areas and/or in proper containers.

The above mentioned activities shall be carried on by the QA/QC Department together with the department that uses the instrument.

6. PROCEDURE

6.1. GENERAL REQUIREMENTS

Instruments and/or devices having appropriate calibration certificates can be utilised within the expiry period. After the expiry dates, the calibration of these instruments and/or devices should be calibrated.

The present procedure is applicable to instruments that require to be calibrated periodically, such as pressure gages, hardness testers, paint thickness gages, optical measurement devices, etc.

Calibration intervals for these instruments and/or devices are given in Attachment 1 according to T.4.096.674 Calibration of Testing and Measuring Tools and Equipment.

6.2. IDENTIFICATION OF INSTRUMENTS

Each instrument that is subject to calibration shall be identified by a serial number.

a) This serial number will be placed on the instrument by such means that shall provide durable identification. All inspection, measuring and test instruments with missing or illegible serial numbers shall be re-calibrated prior to their use.

b) All inspection, measuring and test instruments that are employed for the inspection or acceptance of the construction work shall be marked with utilising stickers or tags, which shall enable immediate visual confirmation of its calibration status.


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6.3. CALIBRATION OF INSTRUMENTS

Instruments subject to calibration shall be calibrated on the following occasions:

6.3.1. Periodic Calibration

This calibration will be carried out before the defined expiry dates by the QA/QC personnel or by a calibration service or agency under the control of the QA/QC Department.

6.3.2. Re-calibration

The instruments may be re-calibrated at any time before the expiry date of the calibration if there are doubts as to the accuracy of the equipment.

6.4. PRECISION OF CALIBRATION

The precision of the calibration shall be defined by the QA/QC Department in accordance with the class of precision stated by the manufacturer of the instrument.

6.5. METHOD OF CALIBRATION

The calibration of the devices shall be carried out according to the manufacturer instructions. In case of the calibration procedure and/or instruction of the device manufacturer is not available, then one of the following procedures shall apply:

a) Calibration against MASTER devices,

Master devices shall possess the manufacturers certificates.

All primary "MASTER" instruments (2nd level) shall undergo calibration at predetermined periods depending on their characteristics and tendency to lose calibration. Secondary instruments (3rd level) shall be calibrated by comparison with the Masters.

b) Calibration Control by direct measurement,

Where and when applicable, the measuring devices shall be calibrated by direct measurement with appropriate and acceptable measuring methods. Measurements shall be carried out with certified devices.

During the controls, if the device has calibration means, then it will be calibrated, supported with an appropriate measurement record.

c) Calibration by an authorised institute,

Calibration of the sophisticated devices, including optical measuring devices shall only be carried out by an authorised institute.


Date : 09.11.2008

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6.6. DOCUMENTATION OF CALIBRATION

A "control list" will be compiled for the measuring and test equipment and shall give the relevant data.

The calibration label (Attachment 2) of the calibrated equipment shall indicate the acceptance of the calibration. When this labelling is neither practical nor considered essential for the control purposes, other procedures shall be established to ensure the conformity with this requirement. Any other procedure shall be in compliance with the requirements of related specifications and subject to approval.

Prior to use of any inspection, measuring and test instrument for the construction work, the responsible engineer shall assure that the effective calibration period of the device has not yet expired and the instrument has not been damaged to a visible degree.


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7. ATTACHMENTS

Attachment 1 Calibration Intervals

Attachment 2 Calibration Labels


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Equipment

Calibration/

Functional

Test

Calibration

Period

(Months)

Remarks

Calibration of survey

instruments CAL 6 months

Calibration of Relief valve CAL 1 week

Calibration of MT yoke CAL 1 month

Calibration of optical

measuring devices CAL

12 months and

each testing

Calibration of ultrasonic

thickness measuring device CAL 12 month

Calibration of surface

thermometer CAL 2 years

Calibration of PMI machine CAL 12months

Calibration of Hygro meter CAL 12 months

Calibration of Elco meter CAL 12 months

Calibration of Holiday tester CAL 12 months


Date : 09.11.2008

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ATTACHMENT 2

CALIBRATION LABELS

INS

S.NO

__________ Date : ___/___/___

Due __________ Sign __________

CALIBRATION" LABEL COLOUR: WHITE

CALIBRATED


Date : 09.11.2008

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"DO NOT USE" LABEL COLOUR: RED

H O L D

Documents

028-Procedure for Calibration.pdf