ASTM E2043-99(2012)

Standard Test Method for Nonvolatile Matter of Agricultural Adjuvant Solutions by Thermogravimetry

SIGNIFICANCE AND USE
5.1 This test method is intended for use in quality control, material screening, and related problem solving where a nonvolatile content is desired or a comparison can be made with a known material of the same type.  
5.2 The parameters described may be altered to suit a particular analysis, provided the changes are noted in the report.
SCOPE
1.1 This test method covers the determination of the non-volatile matter of agricultural tank mix adjuvant solutions by thermogravimetry.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2012
• ICS: 65.100.99 - Other pesticides and agrochemicals
• ICS: 71.040.50 - Physicochemical methods of analysis
• Technical Committee: E35 - Pesticides, Antimicrobials, and Alternative Control Agents
• Drafting Committee: E35.22 - Pesticide Formulations and Delivery Systems

Relations

• Replaces: ASTM E2043-99(2006) - Standard Test Method for Nonvolatile Matter of Agricultural Adjuvant Solutions by Thermogravimetry
• Effective Date: 01-Oct-2012

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E2043 − 99 (Reapproved 2012)
Standard Test Method for
Nonvolatile Matter of Agricultural Adjuvant Solutions by
Thermogravimetry
This standard is issued under the fixed designation E2043; 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 recorded as a function of time and temperature. Nonvolatile
matteristhemassremainingafterheatingataspecifictimeand
1.1 This test method covers the determination of the non-
temperature.
volatile matter of agricultural tank mix adjuvant solutions by
thermogravimetry.
5. Significance and Use
1.2 The values stated in SI units are to be regarded as
5.1 This test method is intended for use in quality control,
standard. No other units of measurement are included in this
material screening, and related problem solving where a
standard.
nonvolatile content is desired or a comparison can be made
1.3 This standard does not purport to address all of the
with a known material of the same type.
safety concerns, if any, associated with its use. It is the
5.2 The parameters described may be altered to suit a
responsibility of the user of this standard to establish appro-
particular analysis, provided the changes are noted in the
priate safety and health practices and determine the applica-
report.
bility of regulatory limitations prior to use.
6. Apparatus
2. Referenced Documents
6.1 Aluminum Weighing Dishes, flat bottom, 70 mL capac-
2.1 ASTM Standards:
ity.
E473 Terminology Relating to Thermal Analysis and Rhe-
ology
6.2 Analytical Balance, with a sensitivity of 0.01 g.
E1131 Test Method for CompositionalAnalysis by Thermo-
6.3 Desiccator.
gravimetry
6.4 Drying Oven, gravity convection-type, capable of main-
E1519 Terminology Relating to Agricultural Tank Mix Ad-
taining a temperature of 50 6 2.5°C. If many determinations of
juvants
solvent-based adjuvants are being made at the same time, an
3. Terminology explosion-proof oven should be used.
3.1 Definitions:
7. Procedure
3.1.1 nonvolatile matter, n—the matter remaining after heat-
ing an agricultural adjuvant solution at 50 6 2.5°C for 16 h. 7.1 Bring the material to be tested to equilibrium tempera-
ture at 25 6 5°C.
4. Summary of Test Method
7.2 Dry two flat-bottomed aluminum weighing dishes in an
4.1 This test method is an empirical technique using ther-
oven at 50 6 2.5°C for 1 h. Allow the dishes to return to
mogravimetry in which the mass of an agricultural adjuvant,
ambient temperature in a desiccator.
heated at a controlled rate in an appropriate environment, is
7.3 Weigh each dish, making the determination in duplicate.
Record the weight of the weighing dish to the nearest 0.01 g.
This test method is under the jurisdiction of ASTM Committee E35 on
7.4 Add approximately 2.0 6 0.1 g of ag
...