GB/T 34689-2017Digital printing materials—Computer direct plate-making plate(CTP Plate)—Test of unit area mass of oxidation layer (English PDF)
数字印刷材料 计算机直接制版版材（CTP版） 氧化层单位面积质量的测定
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
November 1, 2017
Implementation date
May 1, 2018
Scope
GB/T 34689-2017 is the English-translated version of 数字印刷材料 计算机直接制版版材（CTP版） 氧化层单位面积质量的测定.
GB/T 34689-2017 is the Chinese standard "Digital printing materials—Computer direct plate-making plate(CTP Plate)—Test of unit area mass of oxidation layer". Its scope clause reads: This standard specifies the digital printing material computer direct plate (CTP version) oxide layer per unit area quality measurement method.
This standard applies to digital printing materials computer plate-making plates (CTP version) oxide layer quality measurement. Its clauses include method principle; test environment; reagent; instruments; test steps.
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Document preview — GB/T 34689-2017
National Standard of the People's Republic of China
- ICS
- 37.040.20
- Classification
- G 80
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 method principle
- 4 test environment
- 5 reagent
- 6 instruments
- 7 test steps
1 Scope
This standard specifies the digital printing material computer direct plate (CTP version) oxide layer per unit area quality measurement method.
This standard applies to digital printing materials computer plate-making plates (CTP version) oxide layer quality measurement.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 analytical laboratory water specifications and test methods
Offset printing plate size
3 method principle
The version of the surface of the alumina using a dedicated desmear solution to remove the clean, calculate the unit area plate before and after removal of the oxide layer of quality
The amount of difference.
4 test environment
Temperature and humidity should comply with the provisions of Appendix A of GB/T 17155-1997.
5 reagent
Unless otherwise specified, only analytical reagents are used.
5.1
distilled water, GB/T 6682, three.
5.2
Determination of the solution used should be a one-time use.
6 instruments
Analytical balance, flu, 0.1mg.
7 test steps
7.1 Processing solution preparation
In a beaker with a scale, add 500mL ~ 800mL distilled water, then add 40g of potassium dichromate dissolved after 85% of phosphorus
Acid 80mL, then diluted to 1000mL with distilled water, stir well.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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