GB/T 8928-2008 English PDF

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GB/T 8928-2008: Standard test method for density of semi-solid and solid asphalt
Status: Valid

GB/T 8928: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8928-2008	169	Add to Cart	3 days	Standard test method for density of semi-solid and solid asphalt	Valid
GB/T 8928-1988	239	Add to Cart	2 days	Asphalt materials--Determination of specific gravity and density--Pycnometer method	Obsolete

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Basic data

Standard ID: GB/T 8928-2008 (GB/T8928-2008)
Description (Translated English): Standard test method for density of semi-solid and solid asphalt
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: E43
Classification of International Standard: 75.140
Word Count Estimation: 7,781
Date of Issue: 2008-02-13
Date of Implementation: 2008-09-01
Older Standard (superseded by this standard): GB/T 8928-1988
Quoted Standard: GB/T 11147
Adopted Standard: ASTM D70-2003, NEQ; ASTM D2320-1998 (2003), NEQ
Regulation (derived from): National Standard Approval Announcement 2008 No.2 (Total No.115)
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 test methods for the determination of solid and semi-solid petroleum asphalt density using the pycnometer method. This standard does not apply to the determination of the relative density of less than 1. 000 solid asphalt. This standard does not involve the use of relevant safety regulations, standards, users have a responsibility to develop appropriate safety procedures before using the application.

GB/T 8928-2008: Standard test method for density of semi-solid and solid asphalt

---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.
Standard test method for density of semi-solid and solid asphalt ICS 75.140 E43 National Standards of People's Republic of China Replacing GB/T 8928-1988 Solid and semi-solid petroleum asphalt densitometry Posted 2008-02-13 2008-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard American Society for Testing and Materials standard ASTMD70-03 "semi-solid bituminous materials densitometry (pycnometer method)" (in English Version) and ASTMD2320-98 (2003) "Solid coal tar pitch density (relative density) assay (pycnometer method)" (in English) Consistency Not equivalent. The main differences between standard and ASTMD70-03 and ASTMD2320-98 (2003) as follows. --- ASTMD70-03 the proportion of cylindrical and conical bottle there are two types of this standard uses a cylindrical rather than tapered pycnometer pycnometer; --- This standard uses the International System of Units, delete ASTMD2320-98 (2003) Central Africa International System of Units; --- The standard uniform of solid and semi-solid petroleum pitch relative density calculation formula; --- This standard specifies the semi-solid petroleum pitch density precision, without using precision ASTMD70-03 regulations. This standard replaces GB/T 8928-1988 "asphalt gravity and density determination." This standard compared with GB/T 8928-1988 The main changes are as follows. --- The standard name from "petroleum pitch gravity and density determination" to "solid and semi-solid petroleum asphalt density determination"; --- Increased in Chapter 2, normative references, Chapter 5, meaning and purpose, balance 6.2 6.6 vacuum pump or water pump and Chapter 7 sampling. This standard by the National Standardization Technical Committee on products and lubricant oil (SAC/TC280) proposed. The standard by the China University of Petroleum (East China) Heavy Oil Research Institute. This standard is drafted by. China University of Petroleum (East China) Heavy Oil Research Institute. The main drafters of this standard. Guoxiang, Kong Xianming, Fu Yu. This standard was first released in April 1988, the present revision of the 1st amendment. Solid and semi-solid petroleum asphalt densitometry

1 Scope

This standard specifies the test method for the determination of solid and semi-solid petroleum pitch density using the pycnometer method. This standard does not apply to the determination phase Density less than 1.000 of solid bitumen. This standard does not involve the use of relevant safety requirements, standards, responsibility of the user to develop appropriate safety procedures before using the application.

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 11147 bitumen sampling method

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Under standard test temperature mass divided by volume, denoted by ρ. 3.2 Under standard test temperature for a given ratio of the mass of the volume of material quality and the same volume of water, referred to as D. Note. The relative density is the specific gravity. 4. Summary Using gravity bottle at a predetermined temperature, were measured in the same volume of quality asphalt and water, according to the formula to calculate the petroleum pitch The relative density and density. 5. Significance and Uses In terms of volume and quality for each other.

6 Instruments and Materials

6.1 pycnometer. glass, bottle and cork carefully grind, with tight. Cork diameter of 22mm ~ 26mm, with its axis Center, middle hole diameter of 1.0mm ~ 2.0mm, smooth on the surface of the cork, the lower surface is concave, so that air from the hole Escape, a recessed portion at the center of the height of 4.0mm ~ 6.0mm. Cover with cork pycnometer volume 24mL ~ 30mL, mass not exceeding 40g. Pycnometer schematically in Figure 1. 6.2 Balance. a sense of the amount of 0.0005g. 6.3 water bath. to maintain the water temperature at the test temperature ± 0.1 ℃. 6.4 Thermometer. glass thermometer, total immersion, the minimum scale 0.1 ℃, indexing is 1 ℃, measuring range 0 ℃ ~ 30 ℃. Meet the accuracy and Other requirements of the temperature sensitive device can be used. ......

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