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GB/T 20966-2007 English PDF

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US$239.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 20966-2007: Determination of particle size distribution for colliery powers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20966-2007	239	Add to Cart	3 days	Determination of particle size distribution for colliery powers	Valid

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Basic data

Standard ID: GB/T 20966-2007 (GB/T20966-2007)
Description (Translated English): Determination of particle size distribution for colliery powers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D09
Classification of International Standard: 13.100
Word Count Estimation: 9,948
Date of Issue: 2007-07-02
Date of Implementation: 2008-01-01
Regulation (derived from): National Standard Announcement 2007 No.6 (Total No.106) (National-Standard-Commission)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the application of light through gravitational sedimentation method side given coal dust particle size distribution using reagents, instrumentation and sample preparation, fixed side steps, material. The measurement results presentation and measurement reports. This standard applies to coal dust, determination of rock dust filter dust and particle size distribution.

GB/T 20966-2007: Determination of particle size distribution for colliery powers

---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.
Determination of particle size distribution for colliery powers ICS 13.100 D09 National Standards of People's Republic of China Coal dust particle size distribution measurement method Posted 2007-07-02 2008-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard Annex A, Annex B and Annex C is informative appendix. The standard proposed by China Coal Industry Association. This standard is under the jurisdiction of the coal industry Coal Standardization Technical Committee on Security. This standard was drafted. Coal Research Institute Chongqing Branch. The main drafters of this standard. Wang Ziliang, Sui Jinjun, Li Dewen, silver Zhuang Lu. Coal dust particle size distribution measurement method

1 Scope

This standard specifies the method for the determination of light through the application of gravity sedimentation reagents, materials, instruments and sample preparation of coal mine dust particle size distribution using the measurement step Suddenly, the measurement results presentation and measurement report. This standard applies to coal dust, rock dust and determination of particle size distribution of dust filters.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 678-2002 Chemical Reagent alcohol (ethanol) (ISO 6353-2. 1983, NEQ) GB/T 1345 Test method for fineness of cement sieve analysis GB/T 6003.1 woven wire mesh screen test (GB/T 6003.1-1997, eqv ISO 3310-1.1990) GB/T 6524-2003 measuring gravity metal powder particle size distribution sedimentation light transmission method (ISO 10076.1991, IDT) HG/T 3498-1999 butyl acetate Chemicals

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Sampler dust collected on the filter. 3.2 Not with all the dust samples collected, including natural dust, and coal dust underground subsidence (rock) block broken dust. 3.3 Dust in suspension, due to gravity sedimentation, by measuring the amount of attenuation of the light beam passing through the suspension is used to calculate the particle size fraction The method of cloth.

4 Symbol

Table 1 shows the standard symbol meaning. Table 1 standard symbolic meaning Symbol Definition Unit Remarks L absorption length m beam path through the length of the suspension H height m Settlement Ba 0 initial mass concentration g/cm3 ρ1 liquid density g/cm3 Dust ρe true density g/cm3 ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 20966-2007_English be delivered?

Answer: Upon your order, we will start to translate GB/T 20966-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 20966-2007_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 20966-2007_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.