Elcometer 138/2 Manuale utente

User Guide

Elcometer 138/2

Surface Contamination Kit

www.elcometer.com

Section

Page

Overview

en-2

Box Contents

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Test Procedure

en-2

Technical Specification

en-6

Spares & Accessories

en-7

Legal Notices & Regulatory Information

en-7

www.elcometer.com

For the avoidance of doubt, please refer to the original English language version.

Kit Dimensions: 346 x 292 x 84mm (13.6 x 11.5 x 3.3")

Kit Weight: 2.1kg (4lb 7oz)

transcribed, stored (in a retrieval system or otherwise) or translated into any language, in any form or by any

means (electronic, mechanical, magnetic, optical, manual or otherwise) without the prior written permission of

Elcometer Limited.

CONTENTS

en-1

The Elcometer 138/2 Surface Contamination Kit provides materials to

collect a sample of contamination from a surface in accordance with

ISO 8502-6 (Bresle Method).

A solution is produced from the test surface using the Bresle method

and the pH, chloride concentration and iron concentration are then

measured using single-use test strips.

1 OVERVIEW

www.elcometer.com en-2

2 BOX CONTENTS



Elcometer 135C Bresle Test Patch; x50



pH Test Strips; x100



Iron Test Strips; x100



Chloride Test Strips; x40



Syringes, 5ml (0.17 fl oz); x3



Needles (Blunt); x3



Plastic Beaker; 30ml (1 fl oz)



Transit Case



User Guide

3 TEST PROCEDURE

The test procedure consists of two stages:

Stage 1: Produce a solution

Stage 2: Test the solution for chloride, iron or pH as required

3.1 BEFORE YOU START

1 As the test is extremely sensitive, clean latex or nitrile gloves

should be worn during the extraction of soluble salts to prevent

contamination of the surface or sample.

2 Ensure that all parts which come into contact with the test

solution are clean; the beaker, the syringe and the needle. Rinse

with pure water if necessary.

3.2 PRODUCING A SOLUTION

1 Remove the printed protective backing

and foam centre from the Bresle

patch.

3 TEST PROCEDURE (continued)

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en-3

a Pure water is available from Elcometer or your local Elcometer supplier, see Section 5 ‘Spares &

Accessories on page en-7.

b On un-pitted blast-cleaned areas, a period of 10 minutes has been found to be satisfactory, though this

time should be agreed by the interested parties.

c During steps 6 and 7, it is essential that no solution is lost. If any solution is lost, the test shall be rejected.

2 Apply the patch to the surface pressing

firmly around the perimeter of the patch to

ensure a complete seal and remove the

clear protective film cover using the

orange tab. a

3 Pour approximately 3ml of pure water into

the beaker, by eye. Fit a needle into the

syringe and suck 3ml into the syringe.

Throw away the remaining water in the

beaker, do not put the pure water back into

the bottle.

4 Insert the syringe into the patch

through the spongy foam perimeter at

an angle of approximately 30° to the

test surface so that it passes through

the foam into the compartment formed

by the elastomer film and the test

surface. If the patch is positioned in a

difficult position bend the needle as

required.

5 Inject the pure water into the patch.

Do not remove the needle.

 If necessary, any air can be evacuated

into the syringe and allowed to stay above

the water in the syringe. Take care not to

re-insert the air during steps 6 and 7.

6 During a suitable period of time ,

without removing the needle, suck and

re-inject the solution at least four

times .

7 At the end of the period, extract as

much solution as possible and remove

the syringe from the patch .

8 Transfer the contents of the syringe

into the beaker.

9 Test the solution for chloride, iron or

pH as required - see Sections 3.4, 3.5

and 3.6.

3 TEST PROCEDURE (continued)

3.3 AFTER TEST

1 Record the temperature of the solution.

2 Remove the patch from the surface and clean the surface. If

required, any adhesive residue from the patch left on the test

surface can be removed by wiping with a cloth moistened with a

suitable solvent. Ensure that the solvent will not damage the

surface before use.

3 Rinse all components of the test kit, other than the patch, in fresh,

pure water. The components can then be used again.

3.4 TESTING FOR CHLORIDE

1 Remove a titrator from the plastic bottle

marked ‘Chloride’ and replace the cap on

the bottle immediately.

 The test strips included in the kit have a

shelf life determined by the manufacturer.

Before using a test strip, always check that

the expiry date has not been exceeded.

The expiry date is marked on the test strip

container. Further information concerning

the use of test strips can be found in the

manufacturers’ instructions included in the

test strip container.

2 Insert the lower end of the titrator into the

solution. Do not allow the solution to

reach the yellow band at the top of the

titrator. Fluid will rise up the wick inside

the titrator by capillary action.

3 Allow the solution to completely saturate

the titrator wick; complete saturation is

indicated by the yellow band at the top of

the titrator changing to a dark blue colour.

4 Note the position on the numbered scale of the tip of the white

column which has become visible; this represents the Quantab

unit value.

5 Refer to the table on the bottle to convert the Quantab unit value

to chloride concentration; mg/L or ppm.

Note: The solution contains salt in a 3ml sample taken from a 12.5cm area.

Estimated salt / area as Sodium Chloride (according to ISO 8502-5):

2 2

µg/cm = 0.4 x concentration in ppm; mg/m = 4.0 x concentration in ppm

www.elcometer.com en-4

3.5 TESTING FOR IRON

1 Remove a test strip from the metal bottle

marked ‘Iron Test’ and replace the cap on

the bottle immediately.

 The test strips included in the kit have a

shelf life determined by the manufacturer.

Before using a test strip, always check

that the expiry date has not been

exceeded. The expiry date is marked on

the test strip container. Further

information concerning the use of test

strips can be found in the manufacturers’

instructions included in the test strip

container.

2 Insert the lower end of the test strip

into the solution (pH 1 to 7, 15°C to

25°C) for 1 second.

3 Remove the test strip from the solution

and shake off excess liquid from the strip.

4 Wait 10 seconds.

5 Compare the test strip with the scale on the metal bottle.

Determine which of the scale colours coincides most exactly with

that of the test strip. 2+

6 Read off the corresponding result in mg/I Fe or, if necessary,

estimate an intermediate value.

For determination of Fe and should any other colour changes occur,

refer to the manufacturers’ instructions included with the test strip

container.

Note: The colour of the reaction zone on the test strip may continue to change after

the specified reaction time (10 s) has elapsed. This must not be considered as a

measurement.

If the colour of the reaction zone is equal to or more intense than the darkest

colour on the scale, repeat the measurement using fresh samples diluted with

pure water until a value of less than 500mg/l Fe is obtained. This must then be

multiplied by the corresponding dilution factor.

The reading will be the concentration of iron in 3ml of water. To compare this

reading with that of another collection method, scale the volume of water.

The sample is taken from an area of 12.5cm . To compare with another

collection method, scale the area.

www.elcometer.com

en-5

3 TEST PROCEDURE (continued)

Iron Test

100 Tests

mg/l Fe

0 3 10 25 50 100 250 500

www.elcometer.com en-6

3.6 TESTING FOR pH

1 Remove a test strip from the plastic

container marked ‘pH 0 - 14’ and replace

the lid on the container immediately.

 The test strips included in the kit have a

shelf life determined by the manufacturer.

Before using a test strip, always check that

the expiry date has not been exceeded.

The expiry date is marked on the test strip

container. Further information concerning

the use of test strips can be found in the

manufacturers’ instructions included in the

test strip container.

2 Insert the coloured end of the test strip into

the solution to a depth sufficient to cover

all coloured squares.

3 Remove the test strip from the solution

and shake off excess liquid.

4 Holding the test strip as shown, compare the test strip with the

coloured scale on the paper insert inside the plastic container.

Determine which of the scale colour groups coincides most with

that of the test strip.

5 Read of the corresponding pH value (0 to 14).

Note: For weak solutions, leave the test strip immersed in the solution for a period of

up to 10 minutes until there is no colour change, then proceed to step 3 above.

3 TEST PROCEDURE (continued)

pH 0 - 14

4 TECHNICAL SPECIFICATION

4.1 BRESLE PATCH

Patch Size

5cm x 5cm

Test Area

12.5cm

Sample Volume

3ml

4.2 TEST STRIPS - MEASURING RANGE

Chloride

30 to 600ppm Cl (0.005 - 0.1% NaCI)

(12 - 240µg/cm of ISO Salt Mix)

Iron

3 - 10 - 25 - 50 - 100 - 250 - 500mg/l Fe in 3ml of

water from 12.5cm area

0 to 14 pH

5 SPARES & ACCESSORIES

The Elcometer 138/2 Surface Contamination Kit is complete with all

the items required to get started and take measurements however,

over the life of the kit, replacements may be required. The following

items are available from Elcometer or your local Elcometer supplier.

Description Part Number

Elcometer 135C Bresle Test Patch, Pack of 25 E135----C25

Elcometer 135C Bresle Test Patch, Pack of 100 E135----C100

Elcometer 135B Bresle Patch, Pack of 25 E135----B

Chloride Test Strips, Pack of 40 T13820564

Iron Test Strips, Pack of 100 T13820563

pH Test Strips, Pack of 100 T13820562

Bottle of Pure Distilled Water; 250ml (8.5  oz) T13827259

Syringes, 5ml (0.17  oz); x3 T13818517

Needles (Blunt); x3 T13818518

Plastic Beaker; 30ml (1  oz) T13818519

6 LEGAL NOTICES & REGULATORY INFORMATION

is a registered trademark of Elcometer Limited, Edge Lane, Manchester, M43 6BU.

United Kingdom

All other trademarks acknowledged.

The Elcometer 138/2 Surface Contamination Kit is packed in a cardboard package. Please ensure that

this packaging is disposed of in an environmentally sensitive manner. Consult your local

Environmental Authority for further guidance.

CAUTION

The needles supplied for use with this kit are blunt, but care must be exercised when using

and disposing of these needles to prevent accidental needle stick injuries. It is

recommended that used needles be disposed of as special waste, and not in landfill.

TMA-0440 Issue 07 - Text with cover 20571

Guide d'utilisation

Elcometer 138/2

Kit de contamination de surface

www.elcometer.com

En cas de doute, merci de vous référer à la version originale anglaise de ce manuel.

Dimensions du Kit : 346 x 292 x 84mm (13.6 x 11.5 x 3.3")

Poids du Kit : 2.1kg (4lb 7oz)

transmise, transcrite, stockée (dans un système documentaire ou autre) ou traduite dans quelque langue que ce

soit, sous quelque forme que ce soit ou par n'importe quel moyen (électronique, mécanique, magnétique, optique,

manuel ou autre) sans la permission écrite préalable d’Elcometer Limited.

SOMMAIRE

fr-1

Section

Page

Présentation

fr-2

Colisage

fr-2

Procédure de test

fr-2

Caractéristiques techniques

fr-6

Pièces de rechange et accessoires

fr-7

Informations légales et règlementaires

fr-7

Indice

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