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ASTM D1385-01

(Test Method)

Standard Test Method for Hydrazine in Water

Standard Test Method for Hydrazine in Water

SCOPE
1.1 This test method covers² the colorimetric determination of hydrazine in boiler feed waters, condensates, natural, and well waters that have been treated with hydrazine (N2H 4 ). This test method is usable in the range from 5.0 to 200 µg/L (ppb) hydrazine. The range is for photometric measurements made at 458 nm in 50 mm cell. Higher concentrations of hydrazine can also be determined by taking a more diluted sample.  
1.2 It is the users' responsibility to ensure the validity of this test method for untested types of waters.  
1.3  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.  For specific precautionary statements, see 5.3, Note 1, and Footnote 8.

General Information

Status
Historical
Publication Date
09-Jun-2001
ICS
13.060.50 - Examination of water for chemical substances
Technical Committee
D19 - Water
Drafting Committee
D19.03 - Sampling Water and Water-Formed Deposits, Analysis of Water for Power Generation and Process Use, On-Line Water Analysis, and Surveillance of Water
Current Stage
Ref Project

Relations

Replaces
ASTM D1385-88(2001) - Standard Test Method for Hydrazine in Water
Effective Date
10-Jun-2001
Replaced By
ASTM D1385-07 - Standard Test Method for Hydrazine in Water
Effective Date
15-Jun-2007
Referred By
ASTM F2931-19a - Standard Guide for Analytical Testing of Substances of Very High Concern in Materials and Products
Effective Date
10-Jun-2001

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ASTM D1385-01 - Standard Test Method for Hydrazine in Water
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D 1385–01
Standard Test Method for
1
Hydrazine in Water
This standard is issued under the fixed designation D 1385; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope E 275 Practice for Describing and Measuring Performance
2 of Ultraviolet, Visible, and Near Infrared Spectrophotom-
1.1 This test method covers the colorimetric determination
5
eters
of hydrazine in boiler feed waters, condensates, natural, and
wellwatersthathavebeentreatedwithhydrazine(N H ).This
2 4
3. Terminology
test method is usable in the range from 5.0 to 200 µg/L (ppb)
3.1 Definitions—For definitions of terms used in this test
hydrazine.The range is for photometric measurements made at
method, refer to Terminology D 1129.
458 nm in 50 mm cell. Higher concentrations of hydrazine can
also be determined by taking a more diluted sample.
4. Summary of Test Method
1.2 Itistheusers’responsibilitytoensurethevalidityofthis
4.1 When a solution of p-dimethylaminobenzaldehyde in
test method for untested types of waters.
methyl alcohol and hydrochloric acid is added to hydrazine in
1.3 This standard does not purport to address all of the
dilutedhydrochloricacidsolution,acharacteristicyellowcolor
safety concerns, if any, associated with its use. It is the
of p-dimethylaminobenzalazine is formed. The yellow color
responsibility of the user of this standard to establish appro-
formed is proportional to the hydrazine present and is in good
priate safety and health practices and determine the applica-
agreement with Beer’s law in the range from 5.0 to 200 µg/L
bility of regulatory limitations prior to use. For specific
(ppb) hydrazine.
precautionary statements, see 5.3, Note 1, and Footnote 8.
5. Significance and Use
2. Referenced Documents
5.1 Hydrazine is a man-made chemical and is not found in
2.1 ASTM Standards:
3 natural waters.The determination of hydrazine is usually made
D 1066 Practice for Sampling Steam
3 on boiler feedwaters, process waters, and other waters that
D 1129 Terminology Relating to Water
have been treated with hydrazine (N H ) for the purpose of
2 4
D 1192 Specification for Equipment for Sampling Water
3 maintaining residuals to prevent corrosion by dissolved oxy-
and Steam in Closed Conduits
gen. This reducing chemical reacts with dissolved oxygen to
3
D 1193 Specification for Reagent Water
form nitrogen and water. However, under certain conditions it
D 3370 Practices for Sampling Water from Closed Con-
can also decompose to form ammonia and nitrogen. Hydrazine
3
duits
is used extensively as a preboiler treatment chemical for
E60 Practice for Photometric and Spectrophotometric
high-pressure boilers to scavenge small amounts of dissolved
4
Methods for Chemical Analysis of Metals
oxygen that are not removed by mechanical aeration. It has the
advantage over sulfite treatment in that it does not produce any
1
dissolved solids in the boiler water. Hydrazine is often deter-
This test method is under the jurisdiction of ASTM Committee D19 on Water
and is the direct responsibility of Subcommittee D19.03 on Sampling of Water and
mined in concentrations below 0.1 mg/L. However, in layup
Water-Formed Deposits, Surveillance of Water, and Flow Measurement of Water .
solutions for the protection of idle boilers, hydrazine may be
Current edition approved June 10, 2001. Published July 2001. Originally
present in concentrations as high as 200 mg/L.
published as D 1385 – 67. Last previous edition D 1385 – 88 (2001).
2
For further information on this test method, the following references may be of 5.2 Additionally, hydrazine provides protection where re-
interest: Watt, G. W., and Chrisp, J. D.,“ Spectrophotometric Method for the
ducing conditions are required, particularly in mixed metal-
Determination of Hydrazine,” Analytical Chemistry, Vol 24, No. 12, 1952, pp.
lurgy systems for the protection of the copper alloys.
2006–2008,andWood,P.R.,“DeterminationofMaleicHydrazideResiduesinPlant
and Animal Tissue,” Analytical Chemistry, Vol 25, No. 12, 1953, pp. 1879–1883.
3
Annual Book of ASTM Standards, Vol 11.01.
4 5
Annual Book of ASTM Standards, Vol 03.05. Annual Book of ASTM Standards, Vol 03.06.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D 1385–01
NOTE 1—Warning: Hydrazine is a suspected carcinogen and should be
5.3 Hydrazine is a suspected carcinogen and a threshold
7
handled with care.
limit value in the atmosphere of 1.0 mg/L has been set by
OSHA.When in an aqueous solution, hydrazine will oxidi
...

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Standard Practice for Estimation of Chlorine Demand of Water

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5.1 Chlorine is added to potable water, waste water, and industrial water for a variety of purposes. Some of these purposes are:  
5.1.1 To eliminate or reduce the growth of microorganisms in water,  
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5.1 This test method has been developed by U.S. EPA Region 5 Chicago Regional Laboratory (CRL).  
5.2 The N-methyl carbamate (NMC) pesticides: aldicarb, carbofuran, methomyl, oxamyl, and thiofanox have been identified by EPA as working through a common mechanism. These affect the nervous system by reducing the ability of enzymes. Enzyme inhibition was the primary toxicological effect of regulatory concern to EPA in assessing the NMC’s food, drinking water, and residential risks. In most of the country, NMC residues in drinking water sources are at levels that are not likely to contribute substantially to the multi-pathway cumulative exposure. Shallow private wells extending through highly permeable soils into shallow, acidic ground water represent what the EPA believes to be the most vulnerable drinking water. Aldicarb sulfone and aldicarb sulfoxide are breakdown products of aldicarb and should also be monitored due to their toxicological effects.4  
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Standard Test Method for Hardness in Colored and Colorless Water

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5.2 Hardness is caused by any polyvalent cations, but those other than Ca+2 and Mg+2 are seldom present in more than trace amounts. The term hardness was originally applied to water in which it was hard to wash; it referred to the soap-wasting properties of water. With most normal alkaline water, these soap-wasting properties are directly related to the calcium and magnesium content.
SCOPE
1.1 This test method covers the determination of hardness in water by titration with potentiometric detection via optical sensor. This test method is applicable to waters that are free of chemicals that will complex calcium or magnesium. The lower detection limit of this test method is approximately 2 mg/L to 5 mg/L as CaCO3; the upper limit can be extended to all concentrations by sample dilution. It is possible to differentiate between hardness due to calcium ions and that due to magnesium ions by this test method.  
1.2 This test method is applicable to both colorless and colored water samples including groundwater, surface water, wastewater, and drinking water.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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ASTM D8025-23(Test Method)
Standard Test Method for Determination of Select Pesticides in Water by Multiple Reaction Monitoring Liquid Chromatography Tandem Mass Spectrometry

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5.1 Pesticides may be used in various agricultural and household products. These products may enter waterways at low levels through run-off or misuse near water resources. Hence, there is a need for quick, easy and robust method to determine pesticide concentration in water matrices for understanding the sources and concentration levels in affected areas.  
5.2 This method has been single-laboratory validated in reagent water and surface waters (Tables 12-14).
SCOPE
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1.3 A reporting limit check sample (RLCS) is analyzed during every batch to ensure that if an analyte was present in a sample at or near the reporting limit it would be positively identified and accurately quantitated within set quality control limits. A method detection limit (MDL) study was not done for this method, the method detection limits would be much lower than the reporting limits in this method and would be irrelevant. A RLCS was determined to be more applicable for this standard. If this method is adapted to report much lower or near the MDL then a MDL study would be warranted.  
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 The Reporting Range for the target analytes are listed in Table 1.  
1.5.1 The reporting limit in this test method is the minimum value below which data are documented as non-detects. The reporting limit is calculated from the concentration of the Level 1 calibration standard as shown in Table 6 after taking into account an 8 mL water sample volume and a final diluted sample volume of 10 mL (80 % water/20 % methanol).  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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  • Standard
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    English language
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