E363 (version 23)

1.1 These test methods cover the chemical analysis of chromium and ferrochromium having chemical compositions within the following limits:

 

Element

Composition, %

 

Aluminum

0.25 max

 

Antimony

0.005 max

 

Arsenic

0.005 max

 

Bismuth

0.005 max

 

Boron

0.005 max

 

Carbon

9.00 max

 

Chromium

  51.0 to 99.5

 

Cobalt

0.10 max

 

Columbium

0.05 max

 

Copper

0.05 max

 

Lead

0.005 max

 

Manganese

0.75 max

 

Molybdenum

0.05 max

 

Nickel

0.50 max

 

Nitrogen

6.00 max

 

Phosphorus

0.03 max

 

Silicon

12.00 max

 

Silver

0.005 max

 

Sulfur

0.07 max

 

Tantalum

0.05 max

 

Tin

0.005 max

 

Titanium

0.50 max

 

Vanadium

0.50 max

 

Zinc

0.005 max

 

Zirconium

0.05 max

1.2 The analytical procedures appear in the following order:

 

Sections

Arsenic by the Molybdenum Blue Spectrophotometric Test Method
 [0.001 % to 0.005 %]

10 – 20

Lead by the Dithizone Spectrophotometric Test Method
 [0.001 % to 0.05 %]

21 – 31

Chromium by the Sodium Peroxide Fusion-Titrimetric Test Method
 [50.0 % to 99.5 %]

32 – 38

1.3 Units—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 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 6 and in special “Warning” paragraphs throughout these test methods.

1.5 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.