GB/T 22230-2008 English PDF

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GB/T 22230-2008: Liquid chemical products for industrial use -- Determination of density at 20 Celsius
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22230-2008	94	Add to Cart	3 days	Liquid chemical products for industrial use -- Determination of density at 20 Celsius	Valid

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Basic data

Standard ID: GB/T 22230-2008 (GB/T22230-2008)
Description (Translated English): Liquid chemical products for industrial use -- Determination of density at 20 Celsius
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300
Word Count Estimation: 5,571
Date of Issue: 2008-06-19
Date of Implementation: 2009-02-01
Quoted Standard: ISO 3507
Adopted Standard: ISO 758-1976, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 10 of 2008 (total 123)
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 provides an industrial liquid chemicals Determination of density at 20��C method. This standard applies to industrial liquid chemicals at 20��C density determination.

GB/T 22230-2008: Liquid chemical products for industrial use -- Determination of density at 20 Celsius

---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.
Liquid chemical products for industrial use. Determination of density at 20 Celsius ICS 13.300 A80 National Standards of People's Republic of China GB/T 22230-2008/ISO 758. 1976 Industrial liquid chemicals Densitometry at 20 ℃ (ISO 758. 1976, IDT) Posted 2008-06-19 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is identical with ISO 758. 1976 "industrial liquid chemicals at 20 ℃ Density Determination" (in English). For ease of use, has been modified following editorial. a) delete the original keyword criteria, Introduction; b) use of punctuation. "" instead of the original standard. "" periods indicated. This standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points. Participated in the drafting of this standard. the Chemical Institute of Standardization, Beijing Entry-Exit Inspection and Quarantine Hubei. Drafters of this standard. Wang Xiaoqiang, Zhang Jun Xi, Tian Zheng, Jian Mei, Liu Chuan, Cui Hairong, Yang Jie, Guo Jian, Wang Xiaobing, Xu Si bridge. This standard is the first release. GB/T 22230-2008/ISO 758. 1976 20 ℃ when the density determination of liquid chemicals for industrial use

1 Scope

This standard specifies the method for determination of when an industrial liquid chemicals 20 ℃ density. This standard applies to industrial liquid chemicals when the density measured at 20 ℃ with.

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. ISO 3507 pycnometer

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 20 ℃, mass per unit volume of a certain material, expressed as g/mL. Principle 4 In the mass proportion of the bottle a volume of liquid, and then to calculate the proportion of 20 ℃ by measuring the mass of an equal volume of water measured 20 ℃ Volume of the bottle. The mass divided by the volume of the resulting final density of the liquid is obtained.

5 Instruments

5.1 3 type pycnometer (Geiger Pycnometer). see ISO 3507, glass instrument, its shape and size can be used to install a good analyte. specification There 25mL or 50mL, shown in Figure 1. Figure 150 m1 L pycnometer, type 3 (Geiger pycnometer) GB/T 22230-2008/ISO 758. 1976 ......

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