Standard No.:	GB 2007.2-1987
English Name:	General rules for the sampling and sample preparation of minerals in bulk-Manual method of sample preparation
Chinese Name:	散装矿产品取样、制样通则 手工制样方法
Chinese Classification:	D04    Basic standard and general method
Professional Classification:	GB    National Standard
Issued by:	MOC; AQSIQ
Issued on:	1987-12-15
Implemented on:	1988-10-1
Status:	valid
Superseding:	GB 2007-1980 General rules for the sampling and sample preparation of minerals in bulk
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	60.00
Delivery:	via email in 1 business day

This Rules is applicable to preparation of samples collected according to the specified method in GB 2007.1.

Prepared samples shall be able to represent the quality and characteristics of original samples, and it shall be applicable to requirements of analyzing or testing.

This method describes preparation methods of the following samples:

a. Moisture samples: particle size - 22.4mm, 5kg; particle size - 10mm, 2.5kg;

b. Samples for component analysis: maximum particle size 180μm (80 meshes), 250g;

c. Particle size samples: particle size samples shall be dried in the air.

1 Application Scope
2 Normative References
3 Terminologies and Definitions
4 Tools for Sample Preparation
5 General Requirements for Sample Preparation
6 Crushing of Samples
7 Sample Mixing
8 Sample Dividing
9 Precision of Sample Preparation
10 Deviation Check for Sample Preparation System
11 Example of Sample Preparation Procedure - Riffle Dividing Method
12 Sample Containers and Labels
Appendix A Mechanical Mixer and Divider (References)