Iron oxide pigment products testing methods
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Iron oxide pigment products testing methods as the following aspects:
1, Iron oxide pigment products in the technical indicators of "water extraction pH", "lead chromate", "total calcium", "the presence of organic coloring materials" and other four quarterly test according to the standard test method.
2, Iron oxide pigment products in the technical indicators of "iron content", "105 degrees Celsius volatile matter", "water soluble substances", "water-soluble chloride and sulfate", "sieve residue", "water suspension pH", " Oil absorption ", " color ", " relative coloring force" as the factory inspection items, each batch of products after the factory shall be required by this standard test method.
3. Iron oxide pigments should be inspected by the quality inspection department of the factory to ensure that all the iron oxide pigments produced in the factory meet the technical requirements of this standard. Each batch of iron oxide pigments should be accompanied by the product grade certificate of conformity.

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