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ASTM B827-97

Standard Practice for Conducting Mixed Flowing Gas (MFG) Environmental Tests

Automaticky preložený názov:

Štandardná prax pre dirigovanie Zmiešaný prúdiaceho plynu ( MFG ) skúšky vplyvu prostredia

NORMA vydaná dňa 10.12.1997

Jazyk
Prevedenie	Online zabezpečené PDF - 74.00 € Tlačené - 74.00 €
Dostupnosť	SKLADOM
Cena	74.00 € bez DPH
74.00 €

Informácie o norme:

Označenie normy: ASTM B827-97
Poznámka: NEPLATNÁ
Dátum vydania normy: 10.12.1997
Kód tovaru: NS-8303
Počet strán: 9
Približná hmotnosť: 27 g (0.06 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Otázka

Anotácia textu normy ASTM B827-97 :

Keywords:

Air velocity, Chlorine, Corrosion-atmospheric testing, Corrosive gas testing, Corrosivity, Corrosivity monitor, Coulometry, Environmental corrosion testing, Gases, High exchange (HX) rate chambers, Hydrogen sulfide, Low exchange (LX) rate chambers, Mixed flowing gas (MFG), Nitrogen oxides, Pollutants, Pore corrosion, Resistance monitor (RM), Sulfur, Sulfur dioxide, Tarnish, conducting mixed flowing gas (MFG) environmental tests, practice

Doplňujúce informácie

1. Scope

1.1 This practice provides procedures for conducting environmental tests involving exposures to controlled quantities of corrosive gas mixtures.

1.2 This practice provides for the required equipment and methods for gas, temperature, and humidity control which enable tests to be conducted in a reproducible manner. Reproducibility is measured through the use of control coupons whose corrosion films are evaluated by mass gain, coulometry, or by various electron and X-ray beam analysis techniques. Reproducibility can also be measured by in-situ corrosion rate monitors using electrical resistance or mass/ frequency change methods.

1.3 This standard does not purport to address all of the safety problems, 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. See 5.1.2.4.

2. Referenced Documents

D3609-22	Standard Practice for Calibration Techniques Using Permeation Tubes
D3824-20	Standard Test Methods for Continuous Measurement of Oxides of Nitrogen in the Ambient or Workplace Atmosphere by Chemiluminescence
D4230-20	Standard Test Method for Measuring Humidity with Cooled-Surface Condensation (Dew-Point) Hygrometer
E902-05	Standard Practice for Checking the Operating Characteristics of X-Ray Photoelectron Spectrometers (Withdrawn 2011)
D2914-15(2022)	Standard Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)
G91-11(2018)	Standard Practice for Monitoring Atmospheric SO2 Deposition Rate for Atmospheric Corrosivity Evaluation
D3449-79(1984)	Method of Test for Sulfur Dioxide in Workplace Atmospheres (Barium Perchlorate Method)
D3464-96(2023)	Standard Test Method for Average Velocity in a Duct Using a Thermal Anemometer
B542-24	Standard Terminology Relating to Electrical Contacts and Their Use
D2912-76(1983)	Test Method for Oxidant Content of the Atmosphere (Neutral KI) (Withdrawn 1990)
D1193-24	Standard Specification for Reagent Water
B845-97(2024)	Standard Guide for Mixed Flowing Gas (MFG) Tests for Electrical Contacts
B826-26	Standard Test Method for Monitoring Atmospheric Corrosion Tests by Electrical Resistance Probes
B825-19(2024)	Standard Test Method for Coulometric Reduction of Surface Films on Metallic Test Samples
B810-01a(2022)	Standard Test Method for Calibration of Atmospheric Corrosion Test Chambers by Change in Mass of Copper Coupons (Includes all amendments and changes 4/11/2023).
B765-03(2023)	Standard Guide for Selection of Porosity and Gross Defect Tests for Electrodeposits and Related Metallic Coatings
B808-10(2026)	Standard Test Method for Monitoring of Atmospheric Corrosion Chambers by Quartz Crystal Microbalances

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