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The Mexican Ministry of Health has proposed the draft Mexican Official Standard NOM-231-SSA1-2015 "Glazed ceramic, glazed pottery, porcelain articles and glassware – Maximum permissible limits of soluble lead and cadmium – Test method" to replace NOM-231-SSA1-2002.
Following are highlights of the proposed changes:
1. Expand the scope to include glassware in addition to glazed ceramic, glazed pottery and porcelain articles. In addition, their applications in the packaging industry are exempted.
2. Add a column of "Capacity" to Table 1 – Maximum permission limits of soluble lead and cadmium, for glazed ceramic, glazed pottery and porcelain specimens:
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Type of specimen
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Capacity
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Number of specimens in the sample under test
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Acceptance criterion
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Maximum Permissible Limit
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Lead (mg/L)
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Cadmium (mg/L)
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|
Flatware
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Not applicable
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4
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Average
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2.00
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0.50
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Small hollowware
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< 1.1 L
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4
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All specimens
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2.00
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0.50
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Large hollowware
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≥ 1.1 L
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4
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All specimens
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1.00
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0.25
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Storage hollowware
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≥ 3 L
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4
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All specimens
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0.50
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0.25
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Cups and mugs
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Not applicable
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4
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All specimens
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0.50
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0.25
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Cooking ware for food or beverage
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Not applicable
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4
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All specimens
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0.50
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0.05
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3. Add Table 2 – Maximum permission limits of soluble lead and cadmium for glassware:
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Type of specimen
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Capacity
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Number of specimens in the sample under test
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Acceptance criterion
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Maximum permissible limit
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Lead (mg/L)
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Cadmium (mg/L)
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Small hollowware
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< 600 mL
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4
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All specimens
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1.5
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0.50
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Large hollowware
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600 mL - 3 L
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4
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All specimens
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0.75
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0.25
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Storage hollowware
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> 3 L
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4
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All specimens
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0.50
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0.25
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