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GB/T 28194-2011Glass - Double liner method for determination thermal coefficient expansion (English PDF)

玻璃双线法线热膨胀系数的测定

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 30, 2011

Implementation date

September 1, 2012

Scope

GB/T 28194-2011 is the English-translated version of 玻璃双线法线热膨胀系数的测定.

GB/T 28194-2011 is the Chinese standard "Glass - Double liner method for determination thermal coefficient expansion". Its scope clause reads: 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.

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Document preview — GB/T 28194-2011

National Standard of the People's Republic of China

ICS: 81.040.01
Classification: N 64

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and definitions

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.

END: Draft Version (GB/T 28194-2011)

GB 17762-2022 | GB/T 15726-2021 | GB/T 35598-2017 | GB/T 47792.1-2026 | GB/T 28196-2011 | GB/T 28195-2011 |

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Cited by

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