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For products that have obtained safety signs, if the validity period of the safety sign expires and there are no changes to the standards, drawings, main components, and important raw material lists of the continued product, if it is necessary to continue using the safety sign, an application for extension must be submitted to the national agency before the expiration of the validity period.

1、 Apply

The holder shall submit an extension application to Zhongnuo Testing 3-6 months before the expiration of the product safety mark, and submit a stamped "Application for Extension of Mining Product Safety Mark".

2、 Initial review/acceptance
Zhongnuo Testing conducts a preliminary review of the application materials submitted by the certificate holders. Those who pass the review will sign a renewal application contract and be accepted, and a "Notice of Acceptance" will be issued. Those who fail the review will receive a "Notice of Non Acceptance".

 3、 Technical review

Review the effectiveness of national and industry standards implemented or primarily referenced by the product, issue a "Continuation of Product Technical Document Filing Details" to the applicant for qualified ones, and notify the applicant for rectification for unqualified ones.

4、 On site evaluation

The focus of the review is on the applicant's main qualifications, technical documents, testing and inspection equipment, production process control, control of major components and important raw materials.

5、 Continuing inspection

The continuous inspection adopts a sampling method, focusing on the safety performance of the product.

6、 Final review, replacement of safety sign certificate

After the sampling product testing is completed, Zhongnuo Testing submits the testing report to the national institution. After receiving the relevant report, national institutions will conduct an audit of the continued products according to the final review requirements. If they pass the audit, they will be issued a 5-year valid safety mark certificate.

7、 Supervision and inspection

National institutions shall supervise and inspect products and their holders that have obtained safety signs.

8、 Choosing Zhongnuo Testing, we can provide the following services:

(1) Develop a work plan based on the actual production, technology, and product situation of the enterprise, and carry out and complete the overall work from product application to certification according to the plan;

(2) Provide institutional certification model references and make suggestions;

(3) The enterprise shall provide corresponding technical materials for application, such as drawings, manuals, and details of supporting parts; We can provide a reference template (for first-time applications);

(4) Collecting, organizing, and submitting application materials, with a one-time qualification;

(5) Provide process information templates such as production process flow diagrams, process cards, assembly cards, and product information templates that meet the requirements of the organization (for first-time applications);

(6) Provide product inspection procedure templates and guide enterprises in preparing factory inspection reports that meet standards;

(7) Maintain communication with the laboratory to ensure timely arrangement of on-site product inspection time and cooperate with the company to complete technical data rectification;

(8) Communicate with national institutions on specific matters such as the time and project of on-site evaluation;

(9) Establish a system document that meets the requirements of the "Guidelines for On site Review of Safety Signs"; Such as coal mine safety requirements, safety standards and quality manuals, procedural documents, management systems, equipment operation procedures, inspection procedures, training plans, test papers, production records, inspection records, maintenance records, and other materials;

(10) On site production guidance, training, review and communication of response skills; On site pre evaluation and improvement of evaluation content;

(11) Review to ensure approval (hardware must meet requirements);

(12) Collaborative enterprise rectification

(13) Assist in evidence collection

Service Hotline: 18924609560 (same WeChat account)