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GB 5369-2008: General-specification for drinking water tank coating of shipbuilding
Status: Valid GB 5369: Evolution and historical versions
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General-specification for drinking water tank coating of shipbuilding
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GB 5369-2008
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Shipbuilding--Coatings for drinking water tanks--General requirements
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Basic data | Standard ID | GB 5369-2008 (GB5369-2008) | | Description (Translated English) | General-specification for drinking water tank coating of shipbuilding | | Sector / Industry | National Standard | | Classification of Chinese Standard | G51 | | Classification of International Standard | 87.040 | | Word Count Estimation | 13,148 | | Date of Issue | 2008-12-30 | | Date of Implementation | 2009-12-01 | | Older Standard (superseded by this standard) | GB 5369-1985 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 21 of 2008 (No. 134 overall) | | Issuing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 Chinese standard specifies the requirements for marine water tank coating, test methods, inspection rules, marking, packaging, transport and storage. This standard applies to coating the surface of the ship drinking water tank coating system. | GB 5369-2008: General-specification for drinking water tank coating of shipbuilding---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.
General-specification for drinking jwater tank coating of shipbuilding
ICS 87.040
G51
National Standards of People's Republic of China
Replacing GB 5369-1985
Marine water tank paint general technical conditions
Posted 2008-12-30
2009-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard 3.2,4.9 Appendix A. 4 and Appendix A. 5 compulsory, while other provisions are recommendatory.
This standard replaces GB 5369-1985 "marine water tank paint general technical conditions."
This standard and GB 5369-1985 "marine water tank paint general technical conditions" compared to the main changes are as follows.
a) cancel the original standard 1.1 "General requirements";
b) water tank coatings physical and chemical indicators of media resistance unit of time unified "h";
c) coating the soaking water soaking times the original standard "30 to 90d" to soak time "30d";
d) water tank coatings physical and chemical indicators increased fineness, solid content, drying time and storage stability of various items;
e) water tank coatings hygiene requirements to add "water quality should also be soaked in water LD50, Ames and chromosomal aberrations in mammalian cells
Toxicology tests. "
Appendix A of this standard is a normative appendix, Appendix B and Appendix C are informative appendices.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee paint pigment.
This standard was drafted. China Shipbuilding Industry Corporation seventh twenty-five Institute, China Shipbuilding Industry Corporation Bohai Shipyard, Sea
Army Medical Research Institute.
The main drafters of this standard. Sun Zuxin, Suchun Hai, Wang Nanping, East Zhang Zhuang Yan, Xu Chunsheng, Xuxi Sheng.
Marine water tank paint general technical conditions
1 Scope
This standard specifies the marine water tank coatings requirements, test methods, inspection rules, marking, packaging, transportation and storage.
This standard applies to the coated surface of the coating system of the ship drinking water tanks.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 1724 Determination of the fineness of paint
Determination of content of GB/T 1725 Paints, varnishes and plastics non-volatile
GB/T 1728 film, putties drying time assay
GB/T 1731 Determination of film flexibility
GB/T 1733 Determination of water resistance of the film
Determination of GB/T 1771 Paints and varnishes resistance to neutral salt spray
GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling
GB/T 5210 Paints and varnishes - Pull - off adhesion test
GB/T 5749 Standard for Drinking Water
GB/T 6753.3 paint storage stability test methods
GB/T 9750 product packaging and marking paint
GB/T 13491 General Paint Pack
3 Requirements
3.1 Physical indicators
Coatings for drinking water tanks should be consistent with the physical and chemical indicators in Table 1.
Table 1 Physical and chemical indicators of drinking water tank coating
No Item Index
1 Fineness/μm ≤70
2 Solid content /% ≥70
Drying time/h table dry
Hard work
≤4
≤24
4 Flexibility/mm ≤5
5 adhesion/MPa ≥3.0
6 salt spray resistance, 600h no blistering, no loss, no rust
7 water resistance, 720h no blistering, no loss, no rust
Table 1 (continued)
No Item Index
8. Storage stability/a ≥1
NOTE. fineness, solid content, drying time and storage stability indicators project be detected as a single coating, flexibility, adhesion, salt spray resistance, water
Etc. Item Index of objects to be detected composite coating.
3.2 health requirements
3.2.1 Water tank coating according to relevant regulations of the State management of health and safety checks.
3.2.2 Basic project tested the water quality of water in addition to immersion coating "drinking water health standards" set forth, but also should be the type of paint and
Nature detected by other test items, and should be consistent with A. 4.1, A. 4.2 and A. 4.3 requirements.
3.2.3 Water quality coating should also be soaked in water LD50, Ames and mammalian cell chromosome aberration toxicology tests should be consistent
A. 4.4 requirements.
3.2.4 When the water tank with a new paint materials production, but also its concentration was measured dissolution in water, and shall conform to A. 4.5
Claim.
Test Method 4
4.1 fineness
Conducted in accordance with GB/T 1724's.
4.2 solids content
Conducted in accordance with GB/T 1725's.
4.3 Drying time
Performed according to GB/T 1728 regulations.
4.4 Flexibility
Conducted in accordance with GB/T 1731's.
4.5 Adhesion
Conducted in accordance with GB/T 5210's.
4.6 salt spray resistance
Conducted in accordance with GB/T 1771's.
4.7 Water resistance
Conducted in accordance with GB/T 1733's.
4.8 Storage Stability
Conducted in accordance with GB/T 6753.3 of.
4.9 health requirements
In accordance with Appendix A of A. 4, A. 5, Appendix B and Appendix C for sanitary requirements, test.
5 Inspection Rules
5.1 Sampling
Coatings for drinking water tanks should be GB/T 3186 were sampled, the sample is divided into two, one sealed and stored for future reference and the other for examination.
5.2 Inspection classification
5.2.1 Water tank coating inspection is divided into type test and factory inspection.
5.2.2 Type inspection for the periodic inspection, factory inspection for each batch of test.
5.3 Type inspection
5.3.1 Test conditions
When one of the following conditions, type of inspection should be carried out.
A) The normal production, type of inspection should be conducted every three years;
b) when a new product into production;
c) When the materials, processes have changed enough to affect product performance;
d) Product Discontinuance six months to resume production.
5.3.2 Test items
Type inspection as defined in Table 2.
5.4 factory inspection
5.4.1 Test conditions
Each batch of paint factory inspection should be carried out.
5.4.2 Batch
Factory inspection in the batch as a unit, according to each storage tank paint batch.
5.4.3 Test items
Factory inspection according to the provisions of Table 2.
5.5 Eligible determination
When the test project does not meet the requirements, it should be required to GB/T 3186 re-taken double retest samples, such as the project still does not comply with Regulation
Set, the product is substandard goods.
Table 2 Test items
Section Test Method No. Test item name type test factory inspection requirements
1 fineness ● ● 3.1 4.1
2 solid content ● ● 3.1 4.2
3 drying time ● ● 3.1 4.3
4 Flexibility ● ● 3.1 4.4
5 Adhesion ● ● 3.1 4.5
6 salt spray resistance - ● 3.1 4.6
7 water resistance - ● 3.1 4.7
8. Storage stability - ● 3.1 4.8
9 health requirements - ● 3.2 4.9
NOTE. ● should review the project; - not seized items.
6 marking, labeling, packaging, transportation and storage
6.1 mark
Water tank coating product logo should meet the GB/T 9750 requirements.
6.2 Label
Water tank paint products should bear a label indicating the product standard number, type, name, quantity, quality certification mark, manufacturer name, production
Date and lot number.
6.3 Packaging
Drinking water tank paint product packaging shall comply with GB/T 13491 requirements.
6.4 Transport
Water tank coatings products in transportation should prevent rain, sunlight exposure.
6.5 Storage
Water tank paint products should be stored in ventilated, dry coffers, to prevent direct sunlight, and should isolate the source of fire. Product in its original packaging
Closed condition, more than one year storage period can be factory inspection items specified in this standard inspection, such as inspection, it can still be used.
Appendix A
(Normative)
In drinking water equipment and protective materials hygiene and safety evaluation
A. 1 Scope
This appendix provides drinking water distribution equipment and protective materials hygiene and safety evaluation.
This appendix applies to drinking water distribution equipment and protective materials evaluation of health and safety, but also for use in contact with drinking water
Water treatment materials (such as water processor filter, membrane, activated carbon, etc.) in the evaluation of health and safety.
A. 2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Drinking water health standards (2001)
Drinking water test specification (2001)
A. 3 Terms and Definitions
The following terms and definitions apply to this Appendix.
It refers to the water supply pipe in contact with drinking water, water containers, water supply equipment, machinery components (such as valves, pumps, water treatment agent is added
Wait).
Finger paint in contact with drinking water, such as lining.
Means in contact with drinking water quality processor filters, membrane, activated carbon.
A. 4 health requirements
A. 4.1 Those who come into contact with drinking water distribution equipment, water treatment materials and protective materials shall not pollute the water, water quality should be consistent
"Drinking water quality health standards" requirement.
A. 4.2 in drinking water equipment, water treatment materials and protective materials according to this Appendix and Appendix B of the soak test.
A. 4.3 of this Appendix shall be immersed in water and methods of Appendix B treatment. The test results shall conform to Table A. 1 and Table A. 2 requirements.
Table A. 1 basic health requirements immersion test project
No. Item hygiene requirements
Increase 1 color/metric ≤5
2 turbidity/kWh increase in the amount of ≤0.2
After 3 smell and taste/degree (NTU) water soaked the same smell, odor
4 water does not produce any visible debris was soaked debris visible, etc.
5 pH change amount ≤0.5
6 TDS/(mg/L) increased the amount of ≤10
Table A. 1 (cont.)
No. Item hygiene requirements
7 oxygen consumption/(mg/L) increased the amount of ≤1 (in O2 meter)
Arsenic 8/(mg/L) increased the amount of ≤0.005
9 Cd/(mg/L) increased the amount of ≤0.0005
10 Cr/(mg/L) increased the amount of ≤0.005
11 Al/(mg/L) increased the amount of ≤0.02
Lead 12/(mg/L) increased the amount of ≤0.001
13 Hg/(mg/L) increased the amount of ≤0.0002
14 chloroform/(mg/L) increased the amount of ≤0.006
15 Volatile Phenols/(mg/L) increased the amount of ≤0.002
Table A. Health claim 2 immersion test by test project
No. Item hygiene requirements
1 Fe/(mg/L) increased the amount of ≤0.06
Mn 2/(mg/L) increased the amount of ≤0.02
3 Copper/(mg/L) increased the amount of ≤0.2
4 Zn/(mg/L) increased the amount of ≤0.2
5 Barium/(mg/L) increased the amount of ≤0.05
6 Ni/(mg/L) increased the amount of ≤0.002
7 Sb/(g/L) increased the amount of ≤0.0005
CTC 8/(mg/L) increased the amount of ≤0.0002
9 phthalates/(mg/L) increased the amount of ≤0.01
10 Silver/(mg/L) increased the amount of ≤0.005
11 Sn/(mg/L) increased the amount of ≤0.002
12 vinyl chloride/(mg/kg) of the material content ≤1.0
13 Styrene/(mg/L) increased the amount of ≤0.002
14 Epichlorohydrin/(mg/L) increased the amount of ≤0.002
15 Formaldehyde/(mg/L) increased the amount of ≤0.05
16 Acrylonitrile/(mg/kg) in the material content ≤11
17 total radioactivity shall not increase the α (not to exceed the measurement error of 3 standard deviations)
18 total β radioactivity can not be increased (not to exceed the measurement error standard deviation of 3)
19 Benzene/(mg/L) increased the amount of ≤0.001
20 Total Organic Carbon (TOC)/(mg/L) increased the amount of ≤1
Test products dissolved in water possible
Other ingredients
Determination items and limits according to domestic and foreign standards, no standards to follow, according to the Appendix C
Toxicology tests to determine the limits. Toxicology index should be less than one tenth of the limit.
A. Protective material soaked in water 4.4 toxicology tests should be carried out to meet the following requirements.
a) acute oral toxicity (LD50) of not less than 10g/kg (body weight).
b) Ames and mammalian cell mutagenicity chromosome aberration test results should be negative.
A. 4.5 When the new material prepared water distribution equipment, materials and protective materials when water should be measured and the concentration of dissolved matter in the water, and
Evaluate its safety. No standard to follow, according to Appendix C for toxicology tests to determine the limits.
A. 5 Inspections
A. 5.1 All samples should be tested in Table A. All Items 1 and according to the type of the sample, the nature of Table A. 3 Determine protective material soaked again
Test test test items increases.
Table A. 3 protective material contact with drinking water immersion test measured by test items
Test items
Protect
material
Iron and zinc fluoride
Tetrachloro
CFC
formaldehyde
Epoxy chlorine
Propane
Benzene Styrene
always
Organic carbon
GC/MS
Appraisal
ICP
Appraisal
Urushiol ● ● - ● ● - - ● ○ ○ ○
Polyamide ring
Epoxy resin
- - - ● - ● ● - ○ ○ ○
Silicone - - ● ● - - - - ○ ○ ○
PTFE
Ethylene
- - ● ● - - - - ○ ○ ○
Epoxy Phenolic - - - ● ● ● ● ● ○ ○ ○
Water-based modified
Epoxy
- - - ● ● ● ● - ○ ○ ○
Stripping paint - - - ● ● - - ● ○ ○ ○
Other - - - ● - - - - ○ ○ ○
New Chemical
substance
● ● ● ● ● ● ● ● ○ ○ ○
NOTE. ● will review the project; ○ selected items seized; - not seized items.
A. 5.2 Protection of drinking water in contact with the material should be 30d immersion test. 1st (first soak 1d) and sixth (first soak
30d) of the water immersion test items as "drinking water health standards" in Table A. 1. All items and A. Specified in item 5.1. its
More than five times the test project for the "drinking water health standards" in Table A. All items listed excessive and 1st Inspection 1
project.
A. 5.3 test method according to "drinking water inspection standard" implementation.
Appendix B
(Informative)
Protective materials in contact with drinking water testing methods
B. 1 Normative References
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
"Drinking water health standards"
B. 2 Sample preparation
B. 2.1 Preparation of the sample
B. 2.1.1 conditions of product use (such as coating thickness, after coating drying time) sample preparation, the coating can be applied on glass, such as glass
Glass sheet is inappropriate, can be another choice.
B. 2.1.2 take 100mm × 100mm glass, washing and drying. In the glass on both sides of the actual thickness coated with paint. Dried
At the natural drying of the coating material sheet.
B. 2.2 Preparation of reagents
Reagent preparation requirements are as follows.
a) Water.
--- Shall conductivity of less than 2μS/cm of distilled or deionized water.
b) stock solution.
--- 0.025mol/L chlorine stock solution. Take 7.3mL reagent grade sodium hypochlorite (5% NaOCl), diluted to 200mL with water,
Stored in airtight stoppered brown bottle at 20 ℃ from light, freshly prepared each week.
--- Determination of chlorine content. Take 1.0mL chlorine stock solution was diluted with water to 1.0L, total chlorine analysis immediately, this value is set to "A".
--- Determination of chlorine required. In order to obtain 2.0mg/L free chlorine, need to be soaked in water the amount of chlorine added to the stock solution, according to the formula
(B.1) Calculated.
Vp = 2.0 × BA
(B.1)
Where.
--- Vp required volume of stock solution was added chlorine in milliliters (mL of);
Volume B --- standard soaking water in liters (L);
A --- concentration of chlorine stock solution, in milligrams per milliliter (mg/mL).
--- 0.04mol/L calcium hardness stock solution. Weigh 4.44g of anhydrous calcium chloride (of CaCl2) dissolved in pure water and diluted with pure water to
1.0L, mix well. Freshly prepared each week.
--- 0.04mol/L bicarbonate buffer. 3.36g anhydrous sodium bicarbonate or the (NaHC03) dissolved in pure water and diluted with pure water
To 1.0L, mix well. Freshly prepared each week.
B. 2.3 Preparation of sample water
Formulated a pH of 8 and a hardness of 100mg/L, available chlorine 2mg/L water sample method is as follows. Take 25mL sodium bicarbonate buffer
Solution, 25mL of stock solution and the calcium hardness of the required chlorine stock solution was diluted to 1.0L with water. Click to test the actual ratio of preparation needed
Like water.
B. 2.4 soaking conditions
Soak conditions shall include.
a) the volume of water than the surface area of the specimen sample should be 50cm2/L (used to coat the surface area of toxicology tests and sample water volume ratio
Should 1000cm2/L). As a multi-layer coating, the coating layers are then applied to the glass (or another appropriate choice of substrate),
While fixing the sample water. Each paint sample and the sample water volume ratio according to 50cm2/L calculations.
b) in a closed, dark, temperature (25 ± 5) ℃ soaking conditions.
B. 2.5 immersion method
Immersion method is as follows.
a) The hard work of the paint chip samples cleaned with tap water, immersed in containing B. 2.3 The sample of water in a glass container, add
Cover seal. And under the same conditions, the same period as the water retention blank sample water.
b) The sample pieces were inserted into a glass container placed on the glass holder, holding the sample piece vertically, do not contact each other, or the test
Samples suspended in a glass vessel;
c) after soaking 1d, 3d, 5d, 10d, 20d, 30d, respectively, to collect water soak for detection analysis, to observe the concentration of dissolved contaminants
Attenuation degree;
d) soaked in water while collecting all the new change into the soaking water;
e) preparation blank, except for the glass not coated with protective material, the same as all other test conditions.
B. 2.6 soaking water collection and preservation
When the predetermined time of immersion, should be immediately soaked in water into the pre-cleaned vials. Collection to analysis interval of time should
Shall not exceed 8h hours. Some items require determination as soon as possible. To be added preservative preservative should first soak water into a bottle, or direct
Cryopreservation. Soaked in water harvesting and storage methods in Table B. 1 execution.
Table B. 1 soaking water collection and preservation
No. Item preservative container storage
1 color, smell, taste-free bottle 4 ℃, 24h within Determination
2 bottles 4 ℃ no turbidity
3 metals (except mercury) was added concentrated nitric acid to pH < 2 polyethylene bottles at room temperature
4 Mercury
Concentrated nitric acid to pH < 2,
Each 100mL water sample added
5% potassium dichromate solution 1mL.
Polyethylene bottles at room temperature
5 arsenic-free glass bottles at room temperature
6 phenol, cyanide sodium hydroxide to pH > 12 brown glass bottles 4 ℃, measured within 24h
7 No PAHs brown glass bottle 4 ℃
8 without mixing organic brown glass bottle 4 ℃
9 Solvent-free glass 4 ℃
10 volatile organic compounds in a small amount of sodium thiosulfate bottles 4 ℃
B. 3 test methods
Soak test methods according to "drinking water inspection standard" implementation.
Appendix C
(Informative)
In drinking water and sanitation facilities toxicology evaluation procedures and methods for protective materials
C. 1 Scope
This appendix provides drinking water distribution equipment (including all equipment in contact with drinking water), water treatment materials and protective materials
Health toxicological evaluation. This appendix applies in drinking water equipment, water treatment materials and protective materials dissolved in the water of harmful substances
Quality maximum allowable concentration limits in water toxicology tests are not specified.
C. 2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
"Hygienic Standard for Cosmetics" (1999)
C. 3 Toxicological evaluation requirements
Toxicological evaluation should provide the following materials.
a) the product application conditions, applications, physical and chemical properties;
b) the formulation and production methods;
c) the chemical structural formula, impurity composition and content of each component of the formulation;
d) substances and estimated concentrations in drinking-water immersion process may dissolution;
e) Preparation of samples and test samples provided according to usage.
C. 4 Toxicological Evaluation Program
C. 4.1 division level
According to toxicology testing in drinking water equipment, water treatment materials and protective materials in the water concentration of dissolved substances, sub-level Ⅰ
Ⅳ level to carry out in order to determine the maximum allowable concentration in water.
C. 4.2 level Ⅰ
Ⅰ level selected when the concentration of dissolved substances in the water not more than 10μg/L.
C. 4.2.1 Test Project
a) gene mutation test. Ames test;
b) mammalian chromosome aberration test. In vitro mammalian chromosome aberration, or mouse bone marrow cell chromosome aberration test,
Or mouse bone marrow micronucleus test optional one.
C. 4.2.2 Evaluation Results
a) If the above two tests were negative, you can;
b) If the above two tests were positive, the product can not be, or chronic test for further evaluation;
c) If the above two tests have a positive, we need to choose the other two genotoxicity tests as a supplement comprising a gene
Mutation assay and mammalian cell chromosomal aberration test. If you are negative, then the product can be subject to a positive
It can not be sexual, or chronic test for further evaluation.
C. 4.3 Level Ⅱ
Ⅱ level selected when the dissolution substance concentration in water of not less than 10μg/L to not more than 50μg/L.
C. 4.3.1 Test Project
a) level Ⅰ test;
b) oral toxicity tests in rats 90d.
C. 4.3.2 Evaluation Results
a) Evaluation of Genetic Toxicology test results with the level Ⅰ;
b) through 90d oral toxicity tests in rats to determine the substance dissolved in water is the maximum allowable concentration (safety factor generally used
1000);
c) When the actual concentration of dissolved substances in the water exceeds the maximum allowable concentration, it can not pass.
C. 4.4 level Ⅲ
Ⅲ level selected when the dissolution substance concentration in water of not less than 50μg/L to not more than 1000μg/L.
C. 4.4.1 Test items.
a) Level Ⅱ trial;
b) rats induced aberration test.
C. 4.4.2 Evaluation Results.
a) Evaluation of Genetic Toxicology test results with the level Ⅰ;
b) When the test result is positive for teratogenicity of the product does not pass;
c) integrated all the test results to determine the maximum allowable concentration of dissolved substances in the water;
d) When the actual concentration of dissolved substances in the water exceeds the maximum permissible concentration, it can not pass.
C. 4.5 level Ⅳ
Ⅳ level selected when the dissolution substance concentration in water is greater than 1000μg/L.
C. 4.5.1 Test items.
a) Ⅲ level test;
b) Chronic toxicity test.
C. 4.5.2 Evaluation Results.
a) When the teratogenicity test result is positive, the product can not be;
b) When carci...
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