GB/T 28194-2011 English PDF

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GB/T 28194-2011: Glass -- Double liner method for determination thermal coefficient expansion
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28194-2011	169	Add to Cart	3 days	Glass -- Double liner method for determination thermal coefficient expansion	Valid

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Basic data

Standard ID: GB/T 28194-2011 (GB/T28194-2011)
Description (Translated English): Glass -- Double liner method for determination thermal coefficient expansion
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N64
Classification of International Standard: 81.040.01
Word Count Estimation: 7,777
Date of Issue: 2011-12-30
Date of Implementation: 2012-09-01
Quoted Standard: GB/T 16920
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2011
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 glass double the normal method of measuring the thermal expansion coefficient. This standard applies to the determination of the reference standard glass composition is similar Rui glass and container linear thermal expansion coefficient.

GB/T 28194-2011: Glass -- Double liner method for determination thermal coefficient expansion

---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.
Glass. Double liner method for determination thermal coefficient expansion ICS 81.040.01 N64 National Standards of People's Republic of China Determination of normal double glass thermal expansion coefficient Issued on. 2011-12-30 2012-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is based on GB/T 1.1-2009 given rule drafting. The standard proposed by China National Light Industry Council. This standard by National Instrument Standardization Technical Committee on Glass (SAC/TC178) centralized. This standard was drafted. Glass National Light Industry Product Quality Supervision and Inspection Center. The main drafters of this standard. Yang Jianxin, Duyu Hai Liang Ye, Yuan Chunmei. Determination of normal double glass thermal expansion coefficient

1 Scope

This standard specifies the method for determination of the normal two-glass thermal expansion coefficient. This standard applies to linear thermal expansion coefficient was measured with reference standard glass component of glass and similar containers.

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. Determination of GB/T 16920 glass average linear thermal expansion coefficient Principle 3 This method is known glass linear thermal expansion coefficient of glass and reference standard linear thermal expansion coefficient of the test burn stacked together, pull into filaments. Since both glass linear thermal expansion coefficient different filaments will be bent, according to the degree of bending filaments of glass to be tested can be measured linear thermal expansion Expansion coefficient.

4 appliances

4.1 torch to gas, liquefied petroleum gas or natural gas as the source of compressed air or oxygen combustion. 4.2 micrometer and bearings, minimum scale value of 0.01mm. 4.3 special clip, size approximately length 200mm, width 20mm, 1mm thick made of steel. To prevent the hot tip should be 100mm At insert two insulating plates, shown in Figure 1. Figure 1 special pincer 4.4 measurement scale, the glass and glass mirror 250mm × 300mm each composed of a mirror affixed with graph paper, draw horizontal and vertical Coordinate lines in the transverse coordinate line from the midpoint of two points around 100mm apart at each ring 3mm wide excision of the vertical coordinate lines both sides of the cut To length 60mm, width 3mm of graph paper, exposing the mirror surface, as shown in Fig. ......

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