ASTM E396-17 - 15.12.2017
 
Significance and Use

4.1 These test methods for the chemical analysis of cadmium are primarily intended to test such material for compliance with compositional specifications in Specification B440. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.

 
1. Scope

1.1 These test methods cover the chemical analysis of cadmium having chemical compositions with the following limits:

Element

Composition, max, %

 

Antimony

0.001

Arsenic

0.003

Copper

0.015

Lead

0.025

Silver

0.010

Thallium

0.003

Tin

0.010

Zinc

0.035

1.2 The test methods appear in the following order:

 

Sections

Antimony by the Rhodamine B Spectrophotometric Method
  [0.0002 % to 0.0010 %]

62 – 72

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

40 – 50

Copper by the Neocuproine Spectrophotometric Method [0.002 % to 0.030 %]

10 – 19

Copper, Lead, Silver, and Zinc by the Atomic Absorption Spectrometry Method [0.004 % to 0.02 % Cu, 0.01 % to 0.05 % Pb, 0.004 % to 0.02 % Ag,
  and 0.01 % to 0.05 % Zn]

51 – 61

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

20 – 29

Thallium by the Rhodamine B Spectrophotometric Method
  [0.0003 % to 0.005 %]

30 – 39

Tin by the 8-Quinolinol Spectrophotometric Method [0.0025 % to 0.0150  %]

73 – 82

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary information is given in Section 6, , , and .

1.4 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.

 
2. Referenced Documents

E135-23a

Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials (Includes all amendments and changes 7/17/2023).

B440-12(2021)

Standard Specification for Cadmium

E173-93

Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals (Withdrawn 1997)

E1601-19

Standard Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method

D1193-06(2018)

Standard Specification for Reagent Water

E60-11(2022)e1

Standard Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry (Includes all amendments and changes 6/29/2022).

E55-23

Standard Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition

E50-17

Standard Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E88-11(2017)

Standard Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition