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SN/T 2779-2011 English PDF

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SN/T 2779-2011: Methods for sampling and sample preparation of sodium carbonate in bulk for export
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PDF similar to SN/T 2779-2011


Standard similar to SN/T 2779-2011

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Basic data

Standard ID SN/T 2779-2011 (SN/T2779-2011)
Description (Translated English) Methods for sampling and sample preparation of sodium carbonate in bulk for export
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard G11
Classification of International Standard 71.060.40
Word Count Estimation 6,677
Date of Issue 2011-02-25
Date of Implementation 2011-07-01
Quoted Standard GB/T 6678; GB/T 6679-2003
Regulation (derived from) ?AQSIQ-Inspection [2011] 90
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the export of bulk soda ash sampling, sample preparation methods. This standard applies to exports of soda ash in bulk tank sampling method, sample preparation.

SN/T 2779-2011: Methods for sampling and sample preparation of sodium carbonate in bulk for export


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for sampling and sample preparation of sodium carbonate in bulk for export People's Republic of China Entry-Exit Inspection and Quarantine Standards Sampling and sample preparation method of bulk soda ash export bulkforexport Issued on. 2011-02-25 2011-07-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Shandong CIQ. The main drafters of this standard. Wang Shaojun, yellow saffron, Wan Min, Zhang Lei. This standard is the first release of the entry-exit inspection and quarantine industry standards. Sampling and sample preparation method of bulk soda ash export

1 Scope

This standard specifies the bulk soda ash export of sampling and sample preparation methods. This standard applies to bulk soda ash export tankers method of sampling and sample preparation.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 6678 General Principles for Sampling Chemical Products GB/T 6679-2003 General sampling of solid chemical products

3 General Provisions

3.1 from the same batch of bulk soda ash transport tankers, the sample unit from a sample taken once called increments, each increment of weight The amount referred to parts of the sample volume. 3.2 standard to arbitration by tankers sampling method. 3.3 bulk soda ash export products of different manufacturers should be separately sampling, sample preparation and measurement. 3.4 sampling and sample preparation equipment, tools and containers containing samples should be kept clean and dry. 3.5 specimen retention period is generally six months.

4 sampling

4.1 sampling tool Sampling probe, as described in GB/T 6679-2003 Appendix A. 4.2 parts by determining the number of samples This standard according to GB/T 6678, to "tankers" as the sampling units, each unit takes a sample increments, bulk cargo in the least Part number of samples should be 20. Each batch should take a minimum number of samples n1 parts according to formula (1) calculated (as at the end of decimals, into an integer). n1 = 3 n (1) Where. n --- a group of the total number of tankers. Recommended parts to determine the number of samples according to Table 1.

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