1.1”This test method covers procedures for using graphite furnace atomic absorption spectroscopy (GFAAS) to quantitatively determine lead and cadmium extracted by acetic acid at room temperature from the food-contact surface of foodware. The method is applicable to food-contact surfaces composed of silicate-based materials (earthenware, glazed ceramicware, decorated ceramicware, decorated glass, and lead crystal glass) and is capable of determining lead concentrations greater than 0.005 to 0.020 ”g/mL and cadmium concentrations greater than 0.0005 to 0.002 ”g/mL, depending on instrument design.

Product Details

Published:

11/01/2020

Number of Pages:

8

File Size:

1 file , 110 KB