GB/T 10111-2008 in English

1 Scope
This standard specifies the generation of random numbers as well as the method for random sampling of random numbers.
This standard is applicable to random samples drawing for the quality sampling inspection of discrete items and for investigation sampling.
This standard is not applicable to sample drawing for the quality sampling inspection of bulk items.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this standard.. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest editions of the normative documents are applicable to this Standard.

Contents
Foreword i
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 General procedure of random sampling (see Figure 1)
4.1 Determination of sample size or sampling volume
4.2 Selection of applicable method of random sampling
4.3 Numbering of items in population or lot
4.4 Generation of random sample unit number
4.5 Drawing of unit items according to sample unit number
4.6 Management and inspection of sample unit
5 Method of generating random number
5.1 Random number table method
5.2 Random number dice method
5.3 Pseudo randomizer method
6 Simple random sampling
6.1 Implementation of simple random sampling
6.2 Function of simple random sampling
6.3 Example of simple random sampling
7 Systematic sampling
7.1 Summary of systematic sampling
7.2 Systematic sampling method and implementation
8 Implementation of stratified random sampling
8.1 Summary of stratified sampling
8.2 Implementation of stratified random sampling
8.3 Example for stratified random sampling
9 Explanation for subsampling or multiple sampling
Appendix A (Normative) Random Number Table
Appendix B (Normative) Poker method for random sampling
Appendix C (Normative) Method and procedure of generating pseudo-random number
Bibliography