GB/T 15064-2008Test methods of colloidal graphite for kinescope (English PDF)

3 Test method for the solid content

4 Test method for the volatile matter

5 Test method for the ash content

6 Test method for the pH value

7 Test method for the viscosity of the internal cone, pin and neck graphite coatings of colour picture tubes and of the internal and external conductive graphite coatings of monochrome picture tubes

8 Test method for the viscosity of the external graphite coating of colour picture tubes

9 Test method for the viscosity of the black matrix graphite coating of colour picture tubes

10 Test method for the resistivity

11 Test method for the adhesion rate

12 Test method for the pore-forming property

13 Test method for the moisture resistance

14 Test method for the particle size

15 Test method for the iron content

16 Test method for the copper content

Foreword

This document was issued on 20 August 2008 by the State Administration for Market Regulation and the Standardization Administration of the People's Republic of China, and has been in force since 1 April 2009.

It replaces GB/T 15064.6-1994.

Classification: ICS 33.160.40, CCS Q51.

About this edition

GB/T 15064-2008 is the current edition. It was issued on 20 August 2008 and has been in force since 1 April 2009, replacing GB/T 15064.6-1994.

GB/T 15064.6-1994 has been superseded: a specification that still cites it is citing a withdrawn edition.

The interval between issue and effect is the transition period. It exists so that producers, laboratories and buyers can requalify products, revise procedures and use up documentation before the new text becomes the one that applies. The date on this page is the official one from the record of the Standardization Administration.

Classification and status

GB/T 15064-2008 is classified under ICS 33.160.40, in the field of telecommunications. ICS is the International Classification for Standards, the same scheme used by ISO and by the national bodies of most countries, which is what allows a Chinese standard to be placed beside its foreign counterparts on subject rather than on number.

Its Chinese Standard Classification code is CCS Q51. CCS is the domestic scheme, a letter for the sector and two digits for the subject within it, and it is the code by which the standard is filed and searched in China.

The GB/T prefix marks a recommended national standard. It is not, in itself, law: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it. In practice that covers most of the cases in which it will be read — a purchase specification, an inspection agreement or a certification scheme.