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ASTM E439-23

Действует
Standard Test Methods for Chemical Analysis of Beryllium — 8 стр.
Значение и использование

4.1 These test methods for the chemical analysis of beryllium metal are primarily intended as referee methods to test such materials for compliance with compositional specifications. 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.

Область применения

1.1 These test methods cover the chemical analysis of beryllium having chemical compositions within the following limits:

Element

Range, %

Aluminum

 0.05  to 0.30

Beryllium

    97.5   to 100 

Beryllium Oxide

 0.3   to 3   

Carbon

 0.05  to 0.30

Copper

 0.005 to 0.10

Chromium

 0.005 to 0.10

Iron

 0.05  to 0.30

Magnesium

 0.02  to 0.15

Nickel

 0.005 to 0.10

Silicon

 0.02  to 0.15

1.2 The test methods in this standard are contained in the sections as follows.

 

Sections

Chromium by the Diphenylcarbazide Spectrophotometric Test Method
 [0.004 % to 0.04 %]

10 – 19

Iron by the 1,10-Phenanthroline Spectrophotometric Test Method
 [0.05 % to 0.25 %]

20 – 29

Manganese by the Periodate Spectrophotometric Test Method
 [0.008 % to 0.04 %]

30 – 39

Nickel by the Dimethylglyoxime Spectrophotometric Test Method
 [0.001 % to 0.04 %]

40 – 49

1.3 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.

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.

ICS
77.120.99 Other non-ferrous metals and their alloys / Цветные металлы и их сплавы прочие
77.040.30 Chemical analysis of metals / Химический анализ металлов
Сборник ASTM
03.05 Analytical Chemistry for Metals, Ores, and Related Materials / Аналитическая химия для металлов, руд и сопутствующих материалов: с E32 и далее