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ASTM D982-16(2022)

(Test Method)

Standard Test Method for Organic Nitrogen in Paper and Paperboard

Standard Test Method for Organic Nitrogen in Paper and Paperboard

SIGNIFICANCE AND USE
4.1 The purpose of this test method is to determine the amount of organic nitrogen present within a sample of electrical insulation paper or paperboard. Nitrogen content is used to determine if the paper or paperboard has been chemically treated to withstand higher than normal operating temperatures. Such a paper or paperboard is referred to in the industry as “thermally upgraded.” A paper or paperboard that is thermally upgraded can withstand higher operating temperatures and allow the electrical equipment to have a longer useful life span.
SCOPE
1.1 This test method covers the determination of nitrogenous organic materials in paper and paperboard, which typically are used to reduce the thermal degradation of the cellulose in the paper and paperboard.  
1.2 The nitrogen determination by this method does not include the nitrogen in nitro compounds, nitrates, nitrites, azo, hydrazine, cyanide, or pyridine ring-type compounds, none of which are normally found in paper and paperboard. There is no known modification of the method that is applicable to all nitrogenous compounds.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 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.

General Information

Status
Published
Publication Date
30-Apr-2022
ICS
85.060 - Paper and board
Technical Committee
D09 - Electrical and Electronic Insulating Materials
Drafting Committee
D09.01 - Electrical Insulating Products
Current Stage
Ref Project

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ASTM D982-16(2022) - Standard Test Method for Organic Nitrogen in Paper and PaperboardASTM D982-16(2022) - Standard Test Method for Organic Nitrogen in Paper and Paperboard
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ASTM D982-16(2022) - Standard Test Method for Organic Nitrogen in Paper and Paperboard
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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.
Designation: D982 − 16 (Reapproved 2022) Technical Association of Pulp
and Paper Industry
Standard Method T 418 os-61
Standard Test Method for
1
Organic Nitrogen in Paper and Paperboard
This standard is issued under the fixed designation D982; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Summary of Test Method
1.1 This test method covers the determination of nitrog- 3.1 This test method is a modification of the well-known
Kjeldahl procedure. In this test method, compounds that yield
enous organic materials in paper and paperboard, which
typically are used to reduce the thermal degradation of the their nitrogen as ammonia are digested with concentrated
sulfuric acid, using sodium sulfate to raise the boiling point,
cellulose in the paper and paperboard.
and mercuric oxide as a catalyst. The organic matter is
1.2 The nitrogen determination by this method does not
destroyed and the nitrogen is fixed as ammonium sulfate in the
include the nitrogen in nitro compounds, nitrates, nitrites, azo,
excess acid.
hydrazine, cyanide, or pyridine ring-type compounds, none of
which are normally found in paper and paperboard.There is no
4. Significance and Use
known modification of the method that is applicable to all
4.1 The purpose of this test method is to determine the
nitrogenous compounds.
amount of organic nitrogen present within a sample of electri-
1.3 The values stated in SI units are to be regarded as
cal insulation paper or paperboard. Nitrogen content is used to
standard. No other units of measurement are included in this
determine if the paper or paperboard has been chemically
standard.
treated to withstand higher than normal operating tempera-
tures. Such a paper or paperboard is referred to in the industry
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard- as “thermally upgraded.” A paper or paperboard that is ther-
mally upgraded can withstand higher operating temperatures
ization established in the Decision on Principles for the
and allow the electrical equipment to have a longer useful life
Development of International Standards, Guides and Recom-
span.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5. Apparatus
2. Referenced Documents
5.1 Kjeldahl Apparatus, with 500 mLor 800 mLflask and a
2
digestion rack, an efficient bulb or scrubber type of trap to
2.1 ASTM Standards:
ensure that no nonvolatile alkali is carried over, the trap being
D585 Practice for Sampling and Accepting a Single Lot of
connected to the flask with a rubber stopper and to the
Paper, Paperboard, Fiberboard, and Related Product
3
water-cooled condenser following, with rubber tubing. The
(Withdrawn 2010)
condenser tube shall be made of alkali-resistant glass or block
D644 Test Method for Moisture Content of Paper and
3
tin with the discharge end connected to a bent glass delivery
Paperboard by Oven Drying (Withdrawn 2010)
tube, the lower end of which is drawn out to a bore of about 3
mm.
1
This test method is under the jurisdiction of ASTM Committee D09 on 5.2 Other Apparatus—500 mL Erlenmeyer flask, 100 mL
Electrical and Electronic Insulating Materials and is the direct responsibility of
graduatedcylinder,50 mLburet,andmossyzincorglassbeads
Subcommittee D09.01 on Electrical Insulating Products.
for the flask to prevent bumping.
Current edition approved May 1, 2022. Published May 2022. Originally
approved in 1948. Last previous edition approved in 2016 as D982 – 16. DOI:
10.1520/D0982-16R22.
6. Reagents
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.1 Purity of Reagents—Reagent grade chemicals shall be
Standards volume information, refer to the standard’s Document Summary page on
used in all tests. Unless otherwise indicated, it is intended that
the ASTM website.
3
all reagents shall conform to the specifications of the Commit-
The last approved version of this historical standard is referenced on
www.astm.org. tee onAnalytical Reagents of theAmerican Chemical Society,
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D982 − 16 (2022)
4
where such specifications are available. Other grades are also heat the contents with a small
...

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4.1.1 These test methods may be and are used by other ASTM Committees and other standards writing bodies for the purpose of conformance testing.  
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4.2 These test methods are also suitable to be used for testing of steel, stainless steel and related alloy materials for other purposes, such as incoming material acceptance testing by the purchaser or evaluation of components after service exposure.  
4.2.1 As with any mechanical testing, deviations from either specification limits or expected as-manufactured properties can occur for valid reasons besides deficiency of the original as-fabricated product. These reasons include, but are not limited to: subsequent service degradation from environmental exposure (for example, temperature, corrosion); static or cyclic service stress effects, mechanically-induced damage, material inhomogeneity, anisotropic structure, natural aging of select alloys, further processing not included in the specification, sampling limitations, and measuring equipment calibration uncertainty. There is statistical variation in all aspects of mechanical testin...
SCOPE
1.1 These test methods2 cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.  
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Sections  
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7 to 14  
Bend  
15  
Hardness  
16  
Brinell  
17  
Rockwell  
18  
Portable  
19  
Impact  
20 to 30  
Keywords  
32  
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Annex  
Bar Products  
Annex A1  
Tubular Products  
Annex A2  
Fasteners  
Annex A3  
Round Wire Products  
Annex A4  
Significance of Notched-Bar Impact Testing  
Annex A5  
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Annex A6    
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Annex A7  
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Annex A8  
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Annex A9  
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Annex A10  
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