Different kinds of Kitchenware inspection:

Melamine
Stoneware Mugs
Bone China Mugs
Porcelain Mugs
plate sets
Stoneware Dinnerware
Ceramic Plates
Bowl
Cups&Saucers
Soup Tureens
Airline porcelain tableware/dinnerware
High-end Colored porcelain tableware
Round glass Jam Jars
8oz Decorate Glass Jar With Lid
Hexagon Mini Glass Jar
Beer Cup
Coffee Cup
Ice Cream cup
Goblet
Glass Spice Bottles
Enamel Casserole
Fry pan
stainless steel egg whisk
stainless steel measuring cups
stainless steel measuring spoons

Some common factors to check for Kitchenware quality control：

Metal release
Water absorption
Crazing resistance
Impact test
Thermal shock endurance
Metal marking
Dishwashing
Microwave safe
Translucency
Tabletop testing
Resistance to freezing and freezing to oven
Resistance to freezer to microwave
Thermally toughened glass panels
Annealing on glass
Chemical Analysis: Phosphorous, Calcium contents
Cutlery and table hollowware