ASTM D3195-90(1998)e1

Standard Practice for Rotameter Calibration

SCOPE
1.1 This practice covers the calibration of variable-area flowmeters (rotameters) used to determine air sample volumes at or close to ambient conditions of pressure and temperature, in the analysis of atmospheres for pollutant content.  
1.2 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: 09-Oct-1998
• ICS: 17.080 - Measurement of time, velocity, acceleration, angular velocity
• Technical Committee: D22 - Air Quality
• Drafting Committee: D22.01 - Quality Control

Relations

• Replaced By: ASTM D3195-90(2004) - Standard Practice for Rotameter Calibration
• Effective Date: 01-Oct-2004
• Referred By: ASTM D5228-16 - Standard Test Method for Determination of Butane Working Capacity of Activated Carbon
• Effective Date: 10-Oct-1998
• Referred By: ASTM D5207-20 - Standard Practice for Confirmation of 20-mm (50-W) and 125-mm (500-W) Test Flames for Small-Scale Burning Tests on Plastic Materials
• Effective Date: 10-Oct-1998
• Referred By: ASTM E2542-08(2022) - Standard Specification for Portable Water Heaters Used at Personnel Decontamination Stations
• Effective Date: 10-Oct-1998
• Referred By: ASTM D7614-20 - Standard Test Method for Determination of Total Suspended Particulate (TSP) Hexavalent Chromium in Ambient Air Analyzed by Ion Chromatography (IC) and Spectrophotometric Measurements
• Effective Date: 10-Oct-1998
• Referred By: ASTM D3154-14(2023) - Standard Test Method for Average Velocity in a Duct (Pitot Tube Method)
• Effective Date: 10-Oct-1998
• Referred By: ASTM E2543-08(2022) - Standard Specification for Portable Air Heaters Used at Personnel Decontamination Stations and Shelters
• Effective Date: 10-Oct-1998
• Referred By: ASTM D5011-17 - Standard Practices for Calibration of Ozone Monitors Using Transfer Standards
• Effective Date: 10-Oct-1998
• Referred By: ASTM D2913-20 - Standard Test Method for Mercaptan Content of the Atmosphere
• Effective Date: 10-Oct-1998
• Referred By: ASTM D7049-17 - Standard Test Method for Metalworking Fluid Aerosol in Workplace Atmospheres
• Effective Date: 10-Oct-1998
• Referred By: ASTM D6332-12(2021) - Standard Guide for Testing Systems for Measuring Dynamic Responses of Carbon Monoxide Detectors to Gases and Vapors
• Effective Date: 10-Oct-1998
• Referred By: ASTM D2914-15(2022) - Standard Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)
• Effective Date: 10-Oct-1998
• Referred By: ASTM D1607-91(2018)e1 - Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
• Effective Date: 10-Oct-1998
• Referred By: ASTM D7144-21 - Standard Practice for Collection of Surface Dust by Micro-vacuum Sampling for Subsequent Determination of Metals and Metalloids
• Effective Date: 10-Oct-1998
• Referred By: ASTM D4532-22 - Standard Test Method for Respirable Dust in Workplace Atmospheres Using Cyclone Samplers
• Effective Date: 10-Oct-1998

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
e1
Designation:D3195 – 90(Reapproved 1998)
Standard Practice for
Rotameter Calibration
This standard is issued under the fixed designation D 3195; 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.
e NOTE—Paragraph X1.5 was corrected editorially in October 1998.
1. Scope ture scales are to be used when substituting values into the
formulae used in this procedure.
1.1 This practice covers the calibration of variable-area
flowmeters (rotameters) used to determine air sample volumes
4. Summary of Practice
at or close to ambient conditions of pressure and temperature,
4.1 Two alternative methods of performing the required
in the analysis of atmospheres for pollutant content.
volume determinations for rotameter calibration are described:
1.2 This standard does not purport to address all of the
4.1.1 Using the water-sealed rotating drum meter (wet test
safety concerns, if any, associated with its use. It is the
meter). See Section 7.
responsibility of the user of this standard to establish appro-
4.1.2 Using the volumetric gasometer (bell prover). See
priate safety and health practices and determine the applica-
Section 8.
bility of regulatory limitations prior to use.
5. Significance and Use
2. Referenced Documents
5.1 Choice of method depends primarily on which equip-
2.1 ASTM Standards:
ment is available. Higher accuracy is possible with the gasom-
D 1071 Test Methods for Volumetric Measurement of Gas-
eter.Theaccuraciesofthemethodsofatmosphericanalysis,for
eous Fuel Samples
which the calibration procedure is intended, do not warrant the
D 1356 Terminology Relating to Sampling and Analysis of
very highest possible accuracy in flow measurement.
Atmospheres
D 3631 Test Methods for Measuring Surface Atmospheric
6. Apparatus
Pressure
6.1 Wet Test Meter, or Volumetric Gasometer, with water
E 1 Specification for ASTM Thermometers
seal and equipped with a water manometer on the inlet.
E 337 Test Method for Measuring Humidity with a Psy-
6.2 Counter Balance Weights, for gasometer.
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
3 6.3 Mercury Barometer—See Test Methods D 3631.
peratures)
6.4 Psychrometer, (if room air is used for calibration gas).
3. Terminology See Test Method E 337.
6.5 Thermometer, to measure ambient temperature. See
3.1 Definitions:
Specification E 1.
3.1.1 For definitions of terms used in this practice, refer to
6.6 Stopwatch.
Terminology D 1356.
6.7 Air Supply, either a cylinder of compressed air or a
3.1.2 standard conditions are taken as 25°C and 101.3 kPa
diaphragm type pump of adequate capacity and a ballast
(760 mm Hg) at existing ambient humidity. This conforms to
volume or restrictor to eliminate pulsations.
most of the ASTM methods for atmospheric sampling and
6.8 Needle Valve.
analysisthatinvolvevolumetriccorrections.Absolutetempera-
7. Procedure Using Wet Test Meter
7.1 Unless it was already calibrated within the previous 3
This practice is under the jurisdiction of ASTM Committee D22 on Sampling
months, calibrate the wet test meter by Test Methods D 1071.
and Analysis of Atmospheres and is the direct responsibility of Subcommittee
The method described in Section 19 is recommended for
D22.01 on Quality Control.
Current edition approved Dec. 28, 1990. Published February 1991. Originally
highest accuracy.
e1
published as D 3195 – 73. Last previous edition D 3195 – 73 (1985) .
7.2 Set up the apparatus as shown in Fig. 1, making
Annual Book of ASTM Standards, Vol 05.05.
3 connections as short as possible and large enough inside
Annual Book of ASTM Standards, Vol 11.03.
Annual Book of ASTM Standards, Vol 14.03. diameter to avoid any appreciable pressure drops.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
e1
D3195 – 90 (1998)
FIG. 1 Calibration Assembly Using Wet Test Meter
7.3 Before and after the complete calibration run, record 8. Procedure Using Gasometer
room temperature, barometric pressure in accordance withTest
8.1 Unless it was already calibrated within the previous six
Methods D 3631, and relative humidity (when room air is used
months, in the same location, calibrate the gasometer by Test
forcalibratinggas)inaccordancewithTestMethodE 337.Use
Methods D 1071.
average values for subsequent calculations.
8.2 Set up the apparatus as shown in Fig. 2, making
7.4 Start air flowing through the rotameter and wet test
connections as short as possible and large enough inside
meter.Adjust the flow to the desired rate with the needle valve.
diameter to avoid any appreciable pressure drops.
Take a pair of timed readings on the wet test meter, under
steady flow, for each of five or more uniformly spaced points 8.3 Before and after the complete calibration run, record the
room temperature, barometric pressure, and relative humidity
on the rotameter scale, going from low values to high values.
Repeat, going from high to low. Note the manometer reading (when room air is used for calibrating gas). Use average values
and meter water temperature for each meter reading. for subsequent calculations.
FIG
...