Protimeter Protimeter F-L2000C Manual

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PROTIMETER
99 Washington Street Melrose, MA 02176
Phone 781-665-1400 Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Protimeter® Speedy
User Instructions
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Moisture Test Procedure for Standard Size Speedy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Moisture Test Procedure for Large Size Speedy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Special Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Recommended Spares and Consumables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Sample Preparation Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Appendix A - Material Safety Data Sheet (According to Directive 93/112/EU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Introduction
The Series 2000 Speedy moisture tester is a portable system for measuring the moisture content of a wide range of materials including soils, aggregates, dust and powders (and liquids). The system consists of a rugged plastic case containing a low­pressure vessel fitted with a pressure gauge and an electronic scale and ancillaries.
Moisture measurements are made by mixing a weighed sample of the material with a calcium carbide reagent in the sealed pressure vessel. The reagent reacts chemically with water in the sample, producing acetylene gas that in turn increases the pressure within the vessel. As the pressure increase in the vessel is proportional to the amount of water in the sample, the moisture content can be read directly from the calibrated pressure gauge.
The Series 2000 Speedy is available in the models listed Tab l e 1 below.
Table 1: Series 2000 Speedy Models
Measurement Range
(H
Model Vessel Size
L2000C Large 0-10 20 40
L2000D Large 0-20 20 20
L2000G Large 0-50 20 8
S2000C Standard 0-10 10 12
S2000D Standard 0-20 10 6
O% W/W)
2
Max. Recommended
Particle Size (mm)
Sample Wt.
(g)
Safety Precautions
The calcium carbide reagent used with the Speedy tester is a hazardous product that must be handled with care by the user
and with consideration for the environment. Users must follow calcium carbide transportation, storage, handling and disposal guidelines in accordance with local regulations and/or the calcium carbide Material Safety Data Sheet (MSDS) in App
endix A of this manual. Users should be familiar with the hazard identification, first aid measures, fire-fighting measures, accidental release measures, personal protection measures, physical and chemical properties, stability and reactivity, toxicological information, and ecological information as given in the MSDS (see Appendix A).
Users of the Speedy must be familiar with the Speedy Moisture Test Procedure detailed in this manual.
AAS-INSSPEEDY2000, Rev. A
March 2014
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Protimeter Speedy March 2014
S8
S6
S9
S5
S4
S3
S1
Moisture Test Procedure for Standard Size Speedy
A standard size speedy is shown in the photograph to the left. The moisture test procedure is simple to follow and takes a just few minutes for most materials. However, to ensure accurate and consistent results the procedure should be followed precisely. To test your sample, refer to the photographs below and complete the following steps:
1. Clean the Speedy vessel: Prior to using the Speedy tester, ensure that the inside of the Speedy cap and vessel are empty
and clean. Use the bristle brush to remove any residues from previous tests.
2. Select and prepare the sample: Ensure that the sample to be weighed and placed in the Speedy is representative of the
material that is under investigation. Some materials, such as free-flowing powders and sands, need no preparation whereas others may need to be ground prior to testing. See Table 4 on page 6 for further information.
3. Weigh the sample: Place the empty measuring beaker on the electronic scale and zero the scale (refer to the electronic
scale user instructions for further details). Add small amounts of material from the sample until the correct sample weight is reached. The sample weight is determined by the size and measurement range of the Speedy that is being used, as listed in Table 2 below.
Table 2: Sample Weights - Standard Vessel
Model Vessel Size
Range (H2O% W/W)
Sample Wt. (g)
S2000C Standard 0-10 12
S2000D Standard 0-20 6
4. Add the sample to the Speedy vessel: Pour the sample into the chamber of the Speedy vessel.
5. Add the reagent to the Speedy cap: Using the metal scoop, add a minimum of two full scoops of calcium carbide
reagent to the Speedy cap cavity.
6. Seal the Speedy: Hold the Speedy horizontally and position the cap as shown. Then swing the stirrup into position and
tighten the top screw to seal.
7. Mix the sample with the reagent: Hold the Speedy vertically with the pressure gauge facing the ground and shake
vigorously for 5 seconds. Rotate the Speedy through 180° so that the pressure gauge faces the sky, tap the sides of the Speedy to ensure the sample falls into the cap cavity and prop or hold the Speedy in this position for 1-2 minutes.
8. Take the reading: Hold the Speedy horizontally and at eye level and take the moisture content reading directly from the
pressure gauge.
9. Release the pressure: Hold the Speedy vertically with the pressure gauge facing the ground. Locate the arrow on the
flange of the cap and point this away from yourself and other people in your vicinity. Unscrew the top screw slowly to vent the gas that may have been generated within the Speedy.
10. Remove the sample and reagent: Tip the contents of the Speedy directly into a clean and dry open container and
dispose of in accordance with Section 13 of the Calcium Carbide Material Safety Data Sheet.
11. Clean the Speedy: Clean the Speedy vessel, cap and measuring beaker in preparation for the next moisture measurement.
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March 2014 Protimeter Speedy
S8
S6
S9
S5
S4
S3
S1
Moisture Test Procedure for Large Size Speedy
A large size speedy is shown in the photograph to the left. The moisture test procedure is simple to follow and takes a just few minutes for most materials. However, to ensure accurate and consistent results the procedure should be followed precisely. To test your sample, refer to the photographs below and complete the following steps:
1. Clean the Speedy vessel: Prior to using the Speedy tester, ensure that the inside of the Speedy cap and vessel are
empty
and clean. Use the bristle brush to remove any residues from previous tests.
2. Select and prepare the sample: Ensure that the sample to be weighed and placed in the Speedy is representative of
material that is under investigation. Some materials, such as free-flowing powders and sands, need no preparation whereas others may need to be ground prior to testing or pulverized during the test. See Table 4 on page 6 for further information.
3. Weigh the sample: Place the empty measuring beaker on the electronic scale and zero the scale (refer to the electronic
scale user instructions for further details). Add small amounts of material from the sample until the correct sample weight is reached. The sample weight is determined by the size and measurement range of the Speedy that is being used, as listed in Table 3 below.
Table 3: Sample Weights - Large Vessel
Model Vessel Size
Range (H2O% W/W)
Sample Wt. (g)
L2000C Large 0-10 40
L2000D Large 0-20 20
L2000G Large 0-50 8
4. Add the sample to the Speedy vessel: Pour the sample into the chamber of the Speedy vessel. If so indicated in the
Sam
ple Preparation table, place pulverizing balls into the chamber.
5. Add the reagent to the Speedy cap: Using the metal scoop, add a minimum of two full scoops of calcium carbi
de
reagent to the Speedy cap cavity.
6. Seal the Speedy: Hold the Speedy horizontally and position the cap as shown. Then swing the stirrup into position and
tighten the top screw to seal.
7. Mix the sample with the reagent:
the
a. Without pulverizing balls: Hold the Speedy vertically with the pressure gauge facing the grou
vigorously for 5 seconds. Rotate the Speedy through 180° so that the pressure gauge faces the sky, tap the sides of the
nd and shake
Speedy to ensure the sample falls into the cap cavity and prop or hold the Speedy in this position for 1-2 minutes.
b. With pulverizing balls: Hold the Speedy horizontally and shake it in an orbital motion to make the balls spin around
de the Speedy vessel. Do this for 20 seconds and then rest for 20 seconds. Repeat this process 2or 3 times so th
insi the spinning balls pulverize the sample to give a more reliable measurement.
8. Take the reading: Hold the Speedy horizontally and at eye level and take the moisture content reading directly from the
pressure gauge.
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at
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Protimeter Speedy March 2014
M
DW
100 MWW
100 M
WW
------------------------- -----=
Moisture Test Procedure for Large Size Speedy (cont.)
9. Release the pressure: Hold the Speedy vertically with the pressure gauge facing the ground. Locate the arrow on the
flange of the cap and point this away from yourself and other people in your vicinity. Unscrew the top screw slowly to vent the gas that may have been generated within the Speedy.
10. Remove the sample and reagent: Tip the contents of the Speedy directly into a clean and dry open container and
dispose of in accordance with Section 13 of the Calcium Carbide Material Safety Data Sheet.
11. Clean the Speedy: Clean the Speedy vessel, cap and measuring beaker in preparation for the next moisture measurement.
Special Considerations
Use the instructions in this section to adapt your test procedures to special measuring conditions.
Applying the Proportional Test Technique
If the moisture content of the material exceeds the measurement range of the Speedy being used, then the Proportional Test Technique may be used to obtain measurements. This involves halving the normal sample weight and doubling the gauge
value. For example:
1. Assume an L2000D Speedy with a measurement range of 0-20 H
O% W/W is being used to test soil with a nominal
2
moisture content of 30%.
2. The sample is prepared as required and half the normal weight (i.e. 10 g) is placed in the Speedy.
3. The normal test procedure is followed and a gauge value of 14.7% is recorded.
4. This value is then doubled to give the actual moisture content of 29.4%.
The Proportional Test Technique may also be used to obtain clearer readings in very dry material by doubling the sample size and halving the gauge value.
Compensating for Non-Standard Temperature
For optimum performance the Speedy tester and sample should be at 20°C (68°F) when used. If this is not practical, take at least three tests in quick succession to equilibrate temperatures as much as possible. Ignore the first and second test results and record the later results.
Establishing Correction Factors
When compared with oven test results, Speedy readings may be low if the material under investigation contains volatile components other than water, as these may evaporate with the water at elevated temperatures. Correction factors for given materials can be established by plotting graphs of Speedy test results against oven test results.
Measuring Moisture Content in Liquids
Speedy testers may be used to measure the moisture content of certain liquids (most commonly oils) by adapting the test procedure as follows:
1. Weigh the liquid sample as in the standard procedure.
2. Place the liquid in a clean mixing vessel and add two to four scoops of dry sand. Mix the contents thoroughly and place
the mixture in the Speedy vessel.
3. Continue with the test as detailed in the standard Moisture Test Procedure.
Converting Wet Weight to Dry Weight
The pressure gauges used with the Series 2000 Speedy testers are calibrated to give the moisture content expressed as a percentage of the sample's wet weight. If required, the measured value (M
sample's dry weight (M
) by using the following formula:
DW
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) can be expressed as a percentage of the
WW
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March 2014 Protimeter Speedy
Troubleshooting
Use the following procedures to troubleshoot suspected inaccurate results.
Suspected Low Reading
If the Speedy gauge readings are lower than you expect or anticipate, check the following:
Was the test procedure followed correctly? Ensure the correct sample weight is used, the sample is placed in the Speedy
vessel, and the calcium carbide reagent is placed in the Speedy cap. Also, make sure the Speedy vessel and cap are united and sealed in the horizontal plane to prevent premature contact of the reagent and sample.
Was there was adequate cleaning of the Speedy vessel and cap between tests? Ensure all residues from previous tests have
been removed from the cap and vessel before starting a new test.
Was sufficient reagent used? Repeat the test using an additional scoop of reagent.
Was the reagent ineffective? Ensure that the reagent is fresh.
Note: The color of fresh reagent is dark gray; ineffective reagent that has been exposed to moisture in the air or other
sources will have turned light gray in color.
Was sample preparation or sample-reagent mixing adequate? Consider grinding the sample prior to weighing and/or (for
Large Speedy only) using pulverizing balls.
Was the temperature too low? Low readings may be recorded if the Speedy is used in very low temperatures. Take
numerous readings in quick succession to raise the operating temperature of the Speedy.
Was there a pressure loss? Visually check the cap washer for signs of holes or leak paths. Remove the pressure gauge and
visually check the pressure gauge washer. Visually check the Speedy vessel and cap for hairline cracks.
Is the pressure gauge defective? If the needle does not sweep smoothly across the scale plate, replace the gauge or return the
Speedy tester to an authorized distributor for service.
Suspected High Reading
If the Speedy gauge readings are higher than you expect or anticipate, check the following:
Was the correct sample weight used? Ensure that the sample weight is weighed correctly.
Was the gauge read correctly? Ensure that the Speedy is held in the horizontal plane at eye level when reading the pressure
gauge.
Was the temperature too high? High readings may be recorded if the Speedy is used in very high temperatures. If the
Speedy is warm/hot to touch as a result of taking many readings in quick succession, allow time for it to cool down before taking more tests.
Is the pressure gauge defective? If the needle does not return to zero after releasing the pressure from the Speedy, replace
the gauge or return the Speedy tester to an authorized distributor for service.
Recommended Spares and Consumables
It may be wise to consider having the following spares and consumables available when using the Speedy tester, especially in remote locations:
batteries for the electronic scale, AA/LR6 1.5V (3 required)
Speedy cap washer
pressure gauge washer
pressure gauge (note the measurement range)
cleaning brushes
Other spares parts for the Speedy vessel are available on request.
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Protimeter Speedy March 2014
Sample Preparation Table
Refer to Table 4 below for instructions on preparing your sample for analysis.
Table 4: Sample Preparation
Material Type) Recommended Preparation
Aggregate Check maximum sample size. Crush if larger than
maximum recommended particle size.
Dust None required.
Liquids Mix with dry sand (see Measuring Moisture Content
in Liquids on page 4).
Powders None required.
Sand None required.
Soils Grind with mortar and pestle prior to testing, or use
pulverizing balls (for large size Speedy only).
Appendix A - Material Safety Data Sheet (According to Directive 93/112/EU)
1.1 Identification of the Product
Name: Calcium carbide CAS-No.: 75-20-7 UN-No.: 1402 EINECS-No.: 200-848-3 EU - No.: 006-004-00-9
1.2 Identification of the Manufacturer/Supplier
Name: Carbide Industries Limited Address: Althorpe Wharf, Keadby, Scunthorpe
UNITED KINGDOM, DN17 3DA
Telephone: +44 1724 782383
1.3 Emergency Telephone
Telephone: NCEC + 44 1865 407333
2. Composition
CAS-No. Chemical Name Conc. (wt. %) Hazard Classification
75-20-7 Calcium carbide ~80 F - Highly flammable
R -15: Contact with water liberates highly flammable gas.
1305-78-8 Calcium oxide ~15 C - Corrosive
R -34: Causes burns.
3. Hazard Identification
Reacts with water to form Ca(OH) water (humidity), acetylene gas with anesthetic effect is liberated. Simultaneously, very small amounts of poisonous
phosphine and hydrogen sulphide gas are set free.
and flammable acetylene, which forms explosive mixture with air. By contact with
2
Residue contains Calcium hydroxide which may cause burns.
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4. First Aid Measures
Acute poisoning due to handling of calcium carbide is unlikely to occur if usual safety precautions are taken.
Skin: Remove contaminated clothes immediately. Flush exposed skin abundantly with clean water and
cover with sterile compress (do not use compress for burns).
Eyes: Flush abundantly with clean water for at least 15 minutes forcing the eye-lids open.
Immediate transport to hospital or eye specialist.
Inhalation: By poisoning caused by inhalation of phosphine (and arsine) gas from moist calcium carbide:
remove the victim from the source of exposure as quickly as possible. Usual first aid: rest, warmth, fresh air,.
By unconsciousness: Loosen tight-fitting clothes, place the body in a stable, lateral position.
By breathing difficulties: Give oxygen.
By breathing arrest: Artificial respiration.
By heart arrest: External heart compression.
Immediate transport to hospital preferably under administration of oxygen.
Ingestion: Not relevant.
5. Fire-Fighting Measures
Dry calcium carbide is not inflammable. Contact with humidity and water liberates acetylene gas inflammable and can form explosive mixtures with air. The gas is lighter than air.
Fire extinction: Small fires: Dry powder, lime or dry sand.
Large fires: Withdraw from area and let fire burn.
Do not use: Water or foam.
Protective measures: If staying in atmosphere containing acetylene is unavoidable, be aware of the high risk of explosion
and wear self-containing breathing equipment.
6. Accidental Release Measures
Be aware of the possibility of acetylene gas formation on contact with humid atmospheres or water.
Shut off ignition sources.
Stay upwind.
Keep people and animals away from the polluted area.
Removal: Collect material in suitable containers which must not be tightly closed. Protect the spilled material from contact with water and do not allow it to enter water courses.
Water contamination: calcium hydroxide is formed which is harmful to fish and marine organisms. Observe possible national/international pollution regulations.
Contamination of streets and the environments: remaining after collection must not be dumped into the public sewer.
Calcium Carbide should not be let into the sea, lakes, rivers etc. By the reaction with water alkaline
Proceed as described previously. Evacuate the polluted area. Material
which is highly
In case of spillage affecting the environment, consult the authorities (pollution agency etc.) according to local regulations and rules. By serious accidents, inform the authorities concerned.
See also Sections 8, 12 and 13
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Protimeter Speedy March 2014
7.1 Handling
Keep tightly closed in a dry and cool place. Handle and open container with care.
Use spark proof tools.
Protect against humid air and water.
Keep away from sources of ignition.
No smoking.
7.2 Storage
Calcium carbide must be stored in tightly closed containers in a dry, well ventilated place without sprinkler protection.
Exclude possible sources of ignition of acetylene gas.
Even traces of humidity will cause liberation of explosive acetylene gas.
It should be stored separately from silver, mercury, copper and copper alloys.
8. Exposure Controls/Personal Protection
The working operation should be arranged in such a way that formation of dust is reduced to a minimum. Avoid moistu Provide good ventilation.
Respiratory protection: For working operations involving dust formation, use approved dust mask (P2). In case of
possible presence of phosphine-, (arsine-) and hydrogen sulphide gas: use combination filter or preferably fresh air mask until control measurements are done.
Hand Protection: Rubber gloves
Eye protection: Safety goggles, eye flushing facilities
Occupational
Exposure
Standards
Long-term Exposure
ppm (mg/m
3
)
(8 hour TWA reference period)
UK
1
USA
2
Germ.
3
Short-term Exposure Limit
ppm (mg/m
3
)
(15 minute reference period)
UK USA Germ.
Calcium carbide Not stated
Acetylene-gas (C
Phosphine-gas (PH
Arsine-gas (AsH
Hydrogen sulphide-gas (H
Ammonia (NH
) Simple asphyxiant
2H2
) 0,3 (0,4) 0,3 (0,42) 0,1 (0,15) 1 (1) 1 (1,4) - (-)
3
) 0,05 (0,2) 0,05 (0,16) 0,05 (0,2) - (-) - (-) - (-)
3
S) 10 (14) 10 (14) 10 (15) 15 (21) 15 (21) - (-)
2
) 25 (18) 25 (17) 50 (35) 35 (27) 35 (24) - (-)
3
re.
Calcium hydroxide (Ca(OH)
1
Environmental Health Series No. 40 (EH 40), The Health and Safety Executive. Occupational Exposure Limits 1984.
2
Threshold Limit Values 1992 - 1993, American Conference of Governmental Industrial Hygienists (ACGIH).
3
List of MAK- and BAT-values. Commission for the investigation of health hazards of chemical components in the work area.
Report No. 29. Deutsche Forschungsgemeinschaft. 1993.
)- (5)
2
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9. Physical and Chemical Properties
Appearance: Lump-formed or granular, dark gray material
Smell: Onion-like, due to presence of phosphine or arsine as impurities.
Calcium Carbide Calcium Carbide (cont.)
Boiling point: NA Relative density
Melting point: 1700 - 1950°C Bulk density
2.3 g/cm
~1100 kg/m
3
3
Flash point: Does not flash if dry Acetylene
pH - value NA Explosion limit in air 1.5 – 82%
Vapor pressure (20
o
C)
<<1 mbar (in dry air) Ignition temperature 305°C
Solubility (water) Reacts heavily Specific gravity (air =1) 0.91
10. Stability and Reactivity
Calcium carbide reacts violently with water with the liberation of flammable acetylene gas and the formation of
m hydroxide solution. Small amounts of phosphine, arsine, hydrogen sulphide and ammonia are also released.
calciu
Even very small amounts of water will react with calcium carbide developing sufficient heat to make the acetylene gas ignite spontaneously.
Acetylene will react with copper, silver and mercury creating explosive compounds (acetylides which are sh temperature sensitive.
11. Toxicological Information
Handling of dust - free, lumped-formed Calcium Carbide is not considered to be a health risk when
safety precautions are
taken.
Skin: Dust may irritate moist skin and can cause skin ulceration and eczema.
Eyes: Dust may damage the cornea and can in serious cases cause blindness.
corrosive
ock and
Inhalation: Symptoms of acute poisoning are: nausea, vomiting, disorientation, burning sensation in the
nose or throat and breathing difficulties.
12. Ecological Information
The decomposition products of calcium carbide, acetylene and calcium hydroxide are harmful to fish.
Acetylene: 200 mg/l lethal for trout fry
400 mg/l lethal for gold fish within 24 -48 hrs.
Ca(OH)
: 20 mg/l harmful to fish.
2
70 mg/l lethal after 26 minutes
13. Disposal Considerations
Small amounts of Calcium Carbide are collected and mixed with diatomaceous earth at a safe place in the open air. Add small portions of water in a suitable, open container. Ignite the acetylene gas with a pilot flame. Let burn out, and stay for 24 hours. Decant the fluid part and transfer the solid precipitate to an approved site for deposition or burial.
Equipment etc. can be cleaned with water. Observe the possibility of acetylene gas formation and use
protective
equipment.
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Protimeter Speedy March 2014
14. Transport Information
Calcium Carbide must only be packed and transported in packing according to international transport regulations. The packing must be strong and tightly closed to prevent access of humidity to the material.
UN No.: 1402
Air Transport (ICAO-TI/IATA-DGR): Class 4.3, P.G. II,
P/A: 416/15 Kg CAO: 418/50 Kg
Sea Transport (IMDG-Code, Amdt. 25-89): Class 4.3, PG. II,
Page 4335 EMS: 4.3-03 MFAG:705 Stowage Cat.: B
Road Transport (ADR): Class 4.3, Item 17(b)
Kemlercode: 423/1402
Rail Transport (RID): Class 4.3, Item 17(b)
Kemlercode: 423/1402
CEFIC - Card: (R) - 192
For further information about the different transport classes, consult national / international transport authorities.
15. Regulatory Information
According to EU-Dir. 67/548, as amended, the product is labeled as follows:
F - Highly flammable
R 15 Contact with water liberates highly flammable gases
S 8 Keep container dry
S 43 In case of fire, use dry sand (i.e.) dry powder. Never use water.
16. Other Information
The information given here is based on the present state of our knowledge and describes our product under the aspect of safety. It should not therefore be construed as guaranteeing specific properties.
The information contained in this manual is given in good faith. As the method of use of the instrument (and its accessories) and the interpretation of the readings are beyond the control of the manufacturers, they cannot accept responsibility for any loss, consequential or otherwise, resulting from its use.
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March 2014 Protimeter Speedy
Protimeter® is a registered trademark of Amphenol Advanced Sensors
99 Washington Street Melrose, MA 02176
Phone 781-665-1400 Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
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