GB 16413-2026Safety technical requirements for non-metallic products used in coal mines (English PDF)

4.1 General Requirements

4.1.1 The safety characteristics of the product shall be clearly stated in the product standard, including mechanical properties, flame retardancy and antistatic properties, weather resistance, and environmental safety. Other safety features.

4.1.2 Mechanical properties shall include the following characteristics.

---Tensile properties;

---Pressure resistance;

---Pulse performance.

4.1.3 Flame retardancy and antistatic properties should include the following characteristics.

---Flame retardancy;

---Antistatic properties.

4.1.4 Weather resistance shall include the following characteristics.

---Flame retardancy and weather resistance;

---Antistatic and weather-resistant properties.

4.1.5 Environmental safety characteristics shall include the following characteristics.

---Limits for lead and arsenic;

---Smoke density properties;

4.2 Mechanical properties

4.2.1 Tensile properties When the product is used in applications where there is a risk of tensile failure, its tensile properties shall meet the following requirements.

a) The longitudinal tensile strength of fabric-core and steel cord-core conveyor belts should not be lower than the value specified in the product model.

b) The tensile strength of polyolefin pipes should be no less than

9.0 MPa, the tensile strength of polyvinyl chloride pipes should be no less than

30.0 MPa, and the tensile strength of fiberglass pipes should be no less than

30.0 MPa. The minimum axial tensile strength of the pipe shall not be less than

c) Positive pressure ventilation ducts with a nominal diameter of 800mm or less shall have a tensile strength of not less than 1300N in both warp and weft directions; those with a nominal diameter of more than 800mm shall have a tensile strength of not less than 1300N in both warp and weft directions. The tensile strength of the positive and negative pressure ventilation ducts in both the warp and weft directions shall not be less than.2000N;

d) The tensile strength of the resin anchor rod should not be less than 300 MPa;

e) For other products that have a significant risk of tensile failure under other operating conditions, the tensile performance requirements should be clearly specified in their product technical requirements.

4.2.2 Pressure resistance

4.2.2.1 When the product is used in an environment with positive or negative pressure, the positive pressure resistance and negative pressure resistance of the product should be specified according to the requirements of the usage environment.

4.2.2.2 The positive pressure resistance performance shall meet the following requirements.

a) For positive pressure applications, the hydrostatic resistance of PVC pipes, fiber- or steel-wire-reinforced composite plastic pipes should be no less than twice the nominal pressure. The hydrostatic resistance of polyolefin pipes and fiberglass pipes should be no less than

1.5 times the nominal pressure; the hydrostatic resistance of rubber hoses should also be... The performance should not be less than its maximum operating pressure;

b) For composite pipes and rubber hoses used in positive pressure applications, the burst pressure should not be less than 3 times the nominal pressure; the burst pressure of hydraulic support hoses should be... Not less than 4 times the nominal pressure;

c) For coated/covered composite steel pipes used in positive pressure applications, the hydrostatic resistance should be no less than

1.5 times the design pressure;

d) For positive pressure ventilation ducts with a nominal diameter of 600 mm or less, the wind pressure resistance should not be less than 5 kPa; for nominal diameters of 700 mm or less... The wind pressure resistance of a diameter of 1000mm or more should be no less than 8kPa; the wind pressure resistance of a diameter of 1000mm or more should be no less than 10 kPa;

e) Pipes used for negative pressure ventilation and gas extraction should withstand a positive pressure of not less than 1 MPa.

4.2.2.3 The negative pressure resistance performance shall meet the following requirements.

a) The negative pressure resistance of the ventilation duct product should not be lower than -

b) For other products used for gas extraction and negative pressure ventilation, the negative pressure resistance should not be less than -0.097MPa.

4.2.3 Pulse Performance The pulse test pressure of the hose for hydraulic supports should be no less than 133% of the design pressure, and the number of pulses should be no less than.200,000.

4.3 Flame retardancy and antistatic properties

4.3.1 Flame retardancy The flame retardancy of the product shall meet the requirements of Table 1.

4.3.2 Antistatic properties The antistatic properties of the product shall meet the requirements of Table 2.

4.4 Weather resistance

4.4.1 Flame retardancy and weather resistance For products with a service life of more than one year, after aging treatment at 70°C for 168 hours, their burn-in performance with a blowtorch and an alcohol lamp should meet the following requirements. In accordance with the provisions of 4.3.1.

4.4.2 Antistatic and weather-resistant properties For products with a service life of more than one year, their antistatic and weather resistance should meet the following requirements.

a) After aging at 70°C for 168 hours, its surface resistivity should meet the requirements of 4.3.2;

b) After immersion in water at room temperature for 24 hours, its surface resistance should meet the requirements of 4.3.2.

4.5 Environmental safety characteristics

4.5.1 Limits for lead and arsenic The lead and arsenic content in the product should not exceed 1000 mg/kg.

4.5.2 Smoke density performance For products with low smoke density, the specific optical density Ds(4) after 4 minutes of combustion should not exceed 650.For products with a surface area not exceeding 100 cm^2... Products used in a container or enclosed within a metal part are exempt from requirements.

4.5.3 Flue gas toxicity properties For products with low smoke toxicity, the toxicity of the smoke after combustion should not exceed 1.2.For products with a surface area not exceeding 100 cm^2 or enclosed in metal... No requirements are required for products used within components.

6.1.1 Factory Inspection

6.1.1.1 For the same product produced continuously using the same formula and process, each batch is considered to have been manufactured within 7 days; batches less than 7 days are also considered to have been manufactured within the specified time. Each batch should be processed according to regulations. Perform at least one factory inspection before leaving the factory.

6.1.1.2 The factory inspection items are as per Table 3.

6.1.2 Type Testing

6.1.2.1 Type test items are as per Table 3.

6.1.2.2 Type testing shall be conducted under any of the following circumstances.

a) Trial production and type approval when new products or old products are transferred to another factory for production;

b) If, after formal production begins, significant changes occur in the structure, materials, or processes that may affect product performance;

c) When production resumes after a two-year hiatus;

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

e) When the relevant national authorities request type testing.

6.1.2.3 The test specimens for type testing shall be drawn from the products that have passed the factory inspection, and the number of samples shall meet the requirements for sample preparation for the product type testing items. need.

6.2 Judgment Rules

6.2.1 If all inspection items pass, the test is deemed (qualified).

6.2.2 If any item fails to meet the standard, double the sample size shall be taken for retesting. If the retest is passed, the batch of products shall be deemed qualified; otherwise, it shall be deemed unqualified.

6.2.3 If two or more items fail, the item is deemed unqualified.

6.2.4 If any situation arises requiring early termination of the test, it should be recorded in detail, and the batch should be deemed unqualified. GB 16413-2026. Safety Technical Requirements for Non-metallic Products Used in Coal Mines ICS

31 National Standards of the People's Republic of China Replaces GB 16413-2009 Safety Technical Requirements for Non-metallic Products Used in Coal Mines Published on 2026-03-

31 Implemented on 2027-04-

01 State Administration for Market Regulation The State Administration for Standardization issued a statement.