GB/T 47607-2026Micro-nano iron powder (English PDF)

4.2 Designation Method

4.3 Main uses of each grade WNF-Fe-N-100 is mainly used in coating materials. WNF-Fe-W-5 is mainly used for wastewater treatment and deep soil treatment. WNF-Fe-W-30 is mainly used in thermal batteries. WNF-Fe-W-50 is primarily used in diamond cutting tools.

7.2 Type Testing

7.2.1 All indicators specified in this document shall undergo type testing. Under normal production conditions, type testing shall be conducted at least once a year. test.

7.2.2 Type testing shall be performed in any of the following circumstances.

a) Trial production and type approval of the factory's first manufacturing or product conversion.

b) When there are significant changes in raw materials or processes that may affect product performance.

c) When production resumes after a product has been suspended for more than six months.

d) When the factory inspection results differ significantly from the previous type inspection results.

e) As stipulated in the contract.

f) When the quality supervision agency requests a type test.

7.3 Sampling and Judgment Rules

7.3.1 Take no less than.200g of each batch of products for inspection, and the sampling method shall be in accordance with the provisions of GB/T 5314.

7.3.2 If any indicator in the test results fails to meet the requirements of this document, double the sample size should be taken from the same batch for retesting of the non-conforming items. If the test results are satisfactory, the entire batch of products is considered satisfactory; if any indicator in the retest results fails to meet the requirements of this document, the batch of products is considered unsatisfactory.

8.1 Packaging

8.1.1 The packaging requirements for WNF-Fe-W-30 grade products are as follows:

a) The product should be packaged in three layers.

b) Inner layer plastic bag packaging, outer layer aluminum-plastic bag double-layer vacuum packaging, the thickness of the aluminum-plastic film used for sealing is not less than 113µm. The process should be carried out in an environment with a relative humidity of less than 2%.

c) The net weight of a single bag of products shall not exceed 2kg, and the allowable tolerance for the net weight of a single piece shall be less than 1%.

d) After being sealed and packaged, the contents are placed in a metal drum after being marked and sealed with a lid. The net weight of a single drum shall not exceed 20 kg.

8.1.2 Packaging requirements for WNF-Fe-W-5 and WNF-Fe-W-50 grade products.

a) The product should be packaged in two layers.

b) Inner layer plastic bag packaging, outer layer vacuum packaging in aluminum-plastic bag, the thickness of the aluminum-plastic film used for sealing should not be less than 113µm.

c) The net weight of the product in a single bag is 10 kg.

d) After being sealed and packaged, the contents are placed in a metal drum after being marked and sealed with a lid. Each drum has a net weight of 10kg to 20kg.

8.1.3 Packaging requirements for WNF-Fe-N-100 grade products.

a) The product should be packaged in two layers.

b) The inner layer is sealed with metal foil or a thick plastic bag, and the outer layer is a thick plastic bag that is vacuum-sealed or filled with inert gas and then sealed. Each bag contains 100g. 250g, 500g.

c) After being sealed and packaged, the contents are placed in a metal drum after being marked and sealed with a lid. The net weight of a single drum shall not exceed 10 kg.