ASTM D50-90(2023)
- standard by ASTM International, 06/01/2023
- Standard Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese
- Category: ASTM
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Full Description
1.1 These test methods cover procedures for the chemical analysis of yellow, orange, red, and brown pigments containing iron and manganese. The test methods apply specifically to the following pigments: synthetic hydrated yellow iron oxide, yellow ocher, red and brown iron oxides, raw and burnt umber, raw and burnt sienna, and venetian red.
1.2 The analytical procedures appear in the following order:
ASTM
Method
Refer-
Dry Pigments
Sections ences
Moisture and Other Volatile Matter 6
D280
Loss on Ignition 7
Coarse Particles 8
D185
Matter Soluble in Water 9
D1208
Organic Coloring Matter 10
Iron Oxide 11 and 12
Calcium Compounds (Reported as CaO) 13 and 14
Sulfates Soluble in Hydrochloric Acid 15 and 16
Lead Chromate (in Ochers) 17
Calcium Carbonate (in Venetian Red) 18
C25
Manganese (in Siennas and Umbers) 19 and 20
Pigment Pastes in Oil
Pigment Content 21
D1208
Moisture and Other Volatile Matter 22
D1208
Nonvolatile Matter in Vehicle 23
Moisture by Distillation 24
Document History
ASTM D50-90(2023)
ASTM D50-90(2019)
ASTM D50-90(2011)
ASTM D50-90(2005)
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