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GB/T 20432.12-2008: Photography -- Photographic-grade chemicals -- Test methods -- Part 12: Determination of density
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Photography -- Photographic-grade chemicals -- Test methods -- Part 12: Determination of density
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GB/T 20432.12-2008
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Basic data | Standard ID | GB/T 20432.12-2008 (GB/T20432.12-2008) | | Description (Translated English) | Photography -- Photographic-grade chemicals -- Test methods -- Part 12: Determination of density | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G84 | | Classification of International Standard | 37.040.30 | | Word Count Estimation | 7,773 | | Date of Issue | 2008-03-31 | | Date of Implementation | 2008-09-01 | | Adopted Standard | ISO 10349-12-1992, IDT | | Regulation (derived from) | National Standard Approval Announcement 2008 No.5 (Total No.118) | | 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 general test method used in photographic processing solution density determination. | GB/T 20432.12-2008: Photography -- Photographic-grade chemicals -- Test methods -- Part 12: Determination of density
---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.
Photography Photographic-grade chemicals Test methods Part 12.. Determination of density
ICS 37.040.30
G84
National Standards of People's Republic of China
GB/T 20432.12-2008/ISO 10349-12.1992
Photographic grade chemicals
Test methods - Part 12.
Determination of density
(ISO 10349-12.1992, IDT)
Posted 2008-03-31
2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 20432 "Photographic-grade chemicals - Test methods" is divided into the following sections.
--- Part 1. General;
--- Part 2. Determination of matter insoluble in water;
--- Part 3. Determination of ammonia insoluble;
--- Part 4. Determination of residue on ignition;
--- Part 5. Determination of heavy metals and iron content;
--- Part 6. Determination of halide content;
--- Part 7. Determination of alkalinity or acidity;
--- Part 8. Determination of volatile matter;
--- Part 9. silver nitrate and ammonia solution in the reactor;
--- Part 10. Determination of sulfide;
--- Part 11. Determination of relative density;
--- Part 12. Determination of density;
--- Part 13. Determination of pH.
This is Part 12 GB/T 20432 of.
This section identical with 10349-12 ISO .1992 "Photographic grade chemicals - Test methods - Part 12. Determination of density"
(In English).
This section is equivalent translation ISO 10349-12.1992.
For ease of use, this section made the following editorial changes.
a) "This part of ISO 10349" be replaced by "GB/T 20432 in this section."
b) with a decimal point "." instead of a comma as the decimal point "."
c) Remove the ISO 10349-12.1992 Foreword.
d) ISO 10349-12.1992 Normative documents are referenced in ISO 10349-1.1992, and ISO 10349-1.1992 Online
Has been revised to ISO 10349-1.2002, referenced in this section is GB/T 20432.1 (ISO 10349-1.2002, IDT).
e) ISO 10349-13.2002 "Photographic grade chemicals - Test methods - Part 13. pH measurement" Standard 2002
Years to be included in the ISO 10349 series of standards, ISO 10349-12.1992 was published in 1992 did not exist
ISO 10349-13.2002, the standard for completeness, this part of the conversion of ISO 10349-12.1992 to incorporate it into the
This series of standards.
This part is proposed by the China Petroleum and Chemical Industry Association.
This part of the photosensitive material by the National Standardization Technical Committee (SAC/TC102) centralized.
This section drafted by. China Lucky Film Group Corporation.
Drafters of this section. Wang Jun.
GB/T 20432.12-2008/ISO 10349-12.1992
Photographic grade chemicals
Test methods - Part 12.
Determination of density
1 Scope
This section GB/T 20432 specifies the general test method used in the photographic processing solution density determination.
2 Normative references
The following documents contain provisions which, through reference GB/T 20432 in this section constitute provisions of this section. For dated references,
All subsequent amendments (excluding corrections) or revisions do not apply to this section, however, encourage an agreement under this section
Parties to study the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
GB/T 20432.1 Photographic grade chemicals - Test methods - Part 1. General (GB/T 20432.1-2006,
ISO 10349-1.2002, IDT)
3 harmfulness
For hazardous chemicals are handled general warning, execution GB/T 20432.1 requirements.
4 Instrument
4.1 densitometer to measure the density of 0.001 units.
4.2 water bath
Pumps and heating systems to maintain a constant circulating water flow and temperature (± 0.05 ℃). The water bath should be deep enough to ensure that the sample container
The sample is below the surface, the water bath temperature of 25 ℃.
5 Sampling
Executive GB/T 20432.1 requirements.
6 Program
6.1 Calibration
Details on calibration, inspection instrument manufacturers instructions. Relative density deionized or distilled water at 25 ℃
0.99704 calibration.
6.2 Determination
In a clean, dry hydrometer tube was added 100mL sample, and the tube placed in a water bath (4.2), the sample and temperature of the water bath
After the balance, according to the instructions for the instrument (4.1) measure the density with the densitometer.
7 Test report
The test report shall state the method used and test results.
The test report shall also mention all operating details of this part of GB/T 20432 is not provided, or are considered to be optional operation
For details, and details of anything that might affect the test results of the event.
The test report shall include all information required to complete the sample identification.
GB/T 20432.12-2008/ISO 10349-12.1992
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