Description

ASTM E35 – Standard Test Methods for Chemical Analysis of Magnesium and Magnesium Alloys (Withdrawn 2008)

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

Aluminum, %	0.5 to 12
Copper, %	0.005 to 0.1
Iron, %	0.002 to 0.1
Lead, %	0.001 to 0.5
Manganese, %	0.01 to 2.0
Nickel, %	0.0005 to 0.5
Rare earth elements, %	0.2 to 10
Silicon, %	0.01 to 0.8
Thorium, %	0.2 to 25
Tin, %	0.5 to 10
Zinc, %	0.3 to 20
Zirconium, %	0.03 to 1.0
Magnesium, %	remainder

1.2 The analytical procedures appear in the following order:

	Section
Aluminum:
Benzoate-Oxinate (Gravimetric) Method	8-15
Sodium Hydroxide (Potentiometric) Method (Optional Routine Method)	16-23
Copper:
Neocuproine (Photometric) Method	24-33
Hydrobromic Acid-Phosphoric Acid (Photometric) Method	34-43
Iron by the 1,10-Phenanthroline (Photometric) Method	44-53
Lead by the Dithizone (Photometric) Method	54-63
Magnesium-Analysis for Manganese an Zinc by Direct Current Plasma Spectroscopy (Proposal)
Manganese by the Periodate (Photometric) Method	64-73
Nickel:
Dimethylglyoxime Extraction (Photometric) Method	74-83
Dimethylglyoxime (Gravimetric) Method	84.-91
Rare Earth Elements by the Sebacate-Oxalate (Gravimetric) Method	92-98
Silicon:
Perchloric Acid (Gravimetric) Method	99-104
Molybdosilicic Acid (Photometric) Method	105-114
Thorium by the Benzoate-Oxalate (Gravimetric) Method	115-121
Tin by the Iodine (Volumetric) Method	122-129
Zinc:
Ethylenediamine Tetraacetate (Volumetric) Method	130-137
Potassium Ferrocyanide (Volumetric) Method	138-144
Zirconium by the Alizarin Red (Photometric) Method	145-154

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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautions are given in Section 5.