For products that have obtained safety signs, their safety signs need to be extended upon expiration, and the standards, drawings, main components, and important raw material lists of the extended products have not changed. If the safety signs need to be continued to be used, an application for extension must be submitted to the national agency before the expiration of the validity period.

1、 Application

The holder shall apply for extension to Zhongnuo Testing 3-6 months before the expiration of the validity period of their product safety mark, and submit a Mining Product Safety Mark Extension Application Form stamped with the official seal.

2、 Preliminary review/acceptance
Zhongnuo Testing conducts a preliminary review of the application materials submitted by the holder. Those who pass the review sign a continuation application contract, accept it, and issue an "acceptance notice". Those who fail the review will receive an "unaccepted notice".

 3、 Technical review

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

4、 On site review

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, etc.

5、 Continuation testing

The continuous inspection adopts a sampling method, with a focus on inspecting the safety performance of the product.

6、 Final review, issuance of new safety sign certificate

After the sampling product testing is completed, Zhongnuo Testing submits the testing report to the national agency. After receiving relevant reports, national institutions will conduct audits on the extended products according to the final audit requirements. Those that pass the audit will be issued a 5-year valid safety symbol certificate.

7、 Supervision and inspection

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

8、 By 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 provide suggestions;

(3) The enterprise provides corresponding technical information for application, such as drawings, manuals, and detailed supporting parts; We can provide a reference template (for initial application);

(4) Collect, organize, and apply for application materials, and pass them all at once;

(5) Provide production process flow charts, process cards, assembly cards, and other process data templates that meet the requirements of the organization, as well as product data templates (initial application);

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

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

(8) Communicate with national agencies on specific matters such as on-site review time and projects;

(9) Establish a system document that meets the requirements of the Guidelines for Safety Sign Site Review; Such as coal mine safety requirements, safety standards and quality manuals, procedural documents, management systems, equipment operating 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)