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NY/T 734-2003: Raw natural rubber. Technical rules for production of general purpose standard rubber
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NY/T 734-2003: Raw natural rubber. Technical rules for production of general purpose standard rubber

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Raw natural rubber.Technical rules for production of general purpose standard rubber ICS 83.060 B72 People's Republic of China Agricultural Industry Standard Natural raw rubber general standard rubber production process specification Released on December 12,.2003 2004-03-01 implementation Published by the Ministry of Agriculture

Foreword

Appendix A, Appendix B, Appendix C, Appendix D and Appendix E of this standard are normative appendices. This standard was proposed by the Agricultural Bureau of the Ministry of Agriculture. This standard is under the jurisdiction of the Ministry of Agriculture's Tropical Crops and Products Standardization Technical Committee. This standard was drafted. Hainan Provincial Agricultural Reclamation Center Test Station. The main drafters of this standard. Huang Xiangqian, Yang Quanyun, Fu Yongsheng, Lai Guanglian. Natural raw rubber general standard rubber production process specification

1 Scope

This standard specifies the basic process and technical requirements of the general standard rubber in the production process. This standard applies to the production of general standard rubber with fresh latex and miscellaneous rubber as raw materials.

2 Normative references

The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions are not suitable for this standard. However, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. GB/T 1232.1 Determination of unvulcanized rubber by disc shear viscometer Part 1. Determination of Mooney viscosity (GB/T 1232.1- 2001, neq ISO 289-1.1994) GB/T 3517 Determination of plastic retention rate of natural rubber GB/T 4498 Determination of rubber ash (GB/T 4498-1997, eqv ISO 247.1990) GB/T 6737 Determination of volatile matter content of raw rubber (GB/T 6737-1997, eqv ISO 248.1991) GB/T 8082 natural rubber standard rubber packaging, marking, storage and transportation GB/T 8086 Natural raw rubber impurity content determination method (GB/T 8086-1987, neq ISO 249.1974) GB/T 8088 Natural raw rubber and natural latex nitrogen content determination method (GB/T 8088-1999, eqv ISO 1656.1996) GB/T 9869 Determination of vulcanization characteristics of rubber compounds (disc vibration vulcanization method) (GB/T 9869-1997, idt ISO 3417. 1991)

3 Production process

The production process is shown in Figure 1. ...