AWS F1.4 : 1997
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
METHODS FOR ANALYSIS OF AIRBORNE PARTICULATES GENERATED BY WELDING AND ALLIED PROCESSES
23-07-2013
12-01-2013
1. Scope
2. Purpose
3. Introduction
4. Total Fume
5. Metal Fume Constituents
5.1 Principle of the Method
5.2 Range and Sensitivity
5.3 Interferences
5.4 Precision and Accuracy
5.5 Advantages and Disadvantages of the Method
5.6 Apparatus
5.7 Reagents
5.8 Procedure
5.9 Calibration and Standards
5.10 Calculations
6. Analytical Method for Chromium in Welding Fume
6.1 Scope
6.2 Summary of Method
6.3 Sources of Error
6.4 Apparatus
6.5 Reagents
6.6 Calibration and Standardization
6.7 Analytical Procedures
6.8 Calculations
7. Particulate Fluorides
ANNEXES
A. NIOSH Analytical Method 7902 for Fluorides
B. Precautions for Working with Perchloric Acid
TABLES
1. Instrument Parameters
2. Sensitivity Data
FIGURES
1. Standard Additions Example
2. Example of Vacuum Filtration Holder
3. Sample Preparation Flow Chart
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