Plastic liners Sample Clauses
The 'Plastic liners' clause specifies requirements regarding the use, supply, or quality of plastic liners in a particular context, such as packaging, shipping, or waste management. It may detail the type, thickness, or environmental standards the liners must meet, and outline responsibilities for providing or disposing of them. This clause ensures that all parties understand their obligations concerning plastic liners, helping to prevent disputes over quality, supply, or environmental compliance.
Plastic liners. The tensile yield strength and ultimate elongation shall be determined in accordance with paragraph A.22 (Appendix A). Tests shall demonstrate the ductile properties of the plastic liner material at temperatures of -50 °C or lower by meeting the values specified by the manufacturer; The polymeric material shall be compatible with the service conditions specified in paragraph 4 of this annex. In accordance with the method described in paragraph A.23 (Appendix A), the softening temperature shall be at least 90 °C, and the melting temperature at least 100 °C.
Plastic liners. The tensile yield strength and ultimate elongation shall be determined in accordance with paragraph A.22. (Appendix A to this annex). Tests shall demonstrate the ductile properties of the plastic liner material at temperatures of -50 °C or lower by meeting the values specified by the manufacturer; the polymeric material shall be compatible with the service conditions specified in paragraph 4. of this annex. In accordance with the method described in paragraph A.23. (Appendix A to this annex), the softening temperature shall be at least 100 °C."
6.4. Test pressure The minimum test pressure used in manufacture shall be 30 MPa;
6.5. Burst pressures and fibre stress ratios For all types of cylinder the minimum actual burst pressure shall not be less than the values given in Table 6.3 of this annex. For type CNG-2, CNG-3 and CNG-4 designs the composite over-wrap shall be designed for high reliability under sustained loading and cyclic loading. This reliability shall be achieved by meeting or exceeding the composite reinforcement stress ratio values given in Table 6.3 of this annex. Stress ratio is defined as the stress in the fibre at the specified minimum burst pressure divided by the stress in the fibre at working pressure. The burst ratio is defined as the actual burst pressure of the cylinder divided by the working pressure. For type CNG-4 designs, the stress ratio is equal to the burst ratio. For type CNG-2 and CNG-3 designs (metal-lined, composite over-wrapped) stress ratio calculations shall include:
(a) An analysis method with capability for non-linear materials (special purpose computer program or finite element analysis program);
(b) Elastic-plastic stress-strain curve for liner material shall be known and correctly modelled;
(c) Mechanical properties of composite materials shall be correctly modelled;
(d) Calculations shall be made at: auto-frettage, zero after auto-frettage, working and minimum burst pressures;
(e) Pre-stresses from winding tension shall be accounted for in the analysis;
(f) Minimum burst pressure shall be chosen such that the calculated stress at minimum burst pressure divided by the calculated stress at working pressure meets the stress ratio requirements for the fibre used;
(g) When analysing cylinders with hybrid reinforcement (two or more different fibre types), the load share between the different fibres shall be considered based on the different elastic moduli of the fibres. The stress ratio requirements for each individual f...
Plastic liners. The tensile yield strength and ultimate elongation shall be determined in accordance with paragraph