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GB/T 24127-2009: Testing method for determining algal resistance of plastics
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 24127-2009 | English | 139 |
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Testing method for determining algal resistance of plastics
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GB/T 24127-2009
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Basic data | Standard ID | GB/T 24127-2009 (GB/T24127-2009) | | Description (Translated English) | Testing method for determining algal resistance of plastics | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080 | | Word Count Estimation | 6,635 | | Date of Issue | 2009-06-15 | | Date of Implementation | 2010-02-01 | | Adopted Standard | ASTM G29-1996 (2002), NEQ | | Regulation (derived from) | National Standard Approval Announcement 2009 No.8 (Total No.148) | | 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 plastic anti-algae performance test methods. For plastic anti-algae performance evaluation. This standard does not address issues related to security, safety and health practices developed by the use of personnel prior to use standards. And determine the scope and limitations apply. | GB/T 24127-2009: Testing method for determining algal resistance of plastics---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.
Testing method for determining algal resistance of plastics
ICS 83.080
G31
National Standards of People's Republic of China
Plastic anti-algae performance test methods
Posted 2009-06-15
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard ASTMG29.1996 (2002) "plastic film anti-algae properties Standard Test Method for" consistent (in English) non-equivalent.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee plastic aging methods Technical Committee (SAC/TC15/SC5) centralized.
This standard is drafted by. Institute of Microbiology, Guangdong Province, Zhuhai City, far Kang Enterprise Co., Ltd., Beijing Institute of additives addition, Guangzhou
Institute of Materials Co., Ltd., Beijing noble Nano Technology Co., Ltd.
Participated in the drafting of this standard. blond Technology Co., Ltd.
The main drafters of this standard. Xie Bao, Ouyang sheng, Wang Haojiang, Xiezhen Ping, Li Jie, Chen Yi this, Yang Yunong, Bi Li Zhong.
This standard is the first release.
Plastic anti-algae performance test methods
1 Scope
This standard specifies the plastic anti-algae performance test methods for evaluating the performance of plastic anti-algae.
This standard does not address issues related to security, the development of standards prior to use by the use of personnel safety and health practices and determine the applicable limits and
System range.
2 Principle and summary
This test method is to simulate natural environmental conditions, algae growth, algae growth by physiological characteristics of the design of artificial simulation test for
Plastics - Determination of inhibition of algae and killing effect, to evaluate the performance of plastic anti-algae and algae growth is determined by the degree of visual inspection method.
This standard is a plastic test specimen suspended in a glass beaker at room temperature and exposed to fluorescent light, direct contact with the medium
Filamentous blue-green algae of the Oscillatoria (Oscilatoria), every 2d ~ 3d inoculated fresh algae species to sample test bottles. With plastic untreated
Material as a control sample or test 21d after the end of the intensive growth of algae in the control sample.
3 Significance and Use
Agriculture, a lot of plastic is used to make film, film seedlings, big films and irrigation pipes, fishing nets, buoys and other farming; industrial areas
More widely, such as water and outdoor architectural pipe, submersible pumps, ship building materials. Since the humid climate and light conditions, algae
Class of growth and reproduction in large numbers on the surface of plastic or plastic products, algae and its metabolites (such as acids, enzymes and other chemicals) affect not only the plastic
The appearance of the material itself, but also affect the performance of plastic or plastic products.
In the swimming pool, artificial ponds, irrigation canals and other facilities usually lined with a plastic film. When weather conditions are suitable, easy raw algae
Long, they produce thick and unsightly film on the plastic. This method was used to evaluate the anti-algae grade plastic.
4 Equipment
4.1 Light incubator
Temperature can be maintained at 25 ℃ ± 2 ℃, fluorescent light intensity 2000lx ~ 10000lx.
4.2 two biological safety cabinets or clean benches
4.3 Electronic Balance
Precision 0.01g.
4.4 Analytical Balance
Precision 0.0001g.
4.5 high-pressure steam sterilizer
Pressure can be maintained at 0.10MPa ~ 0.11MPa.
4.6 homogenizer
Speed \u200b\u200bis not less than 10000r/min.
4.7 Beaker
Capacity 1000mL.
4.8 Petri dishes
Diameter 9cm.
Precision 0.1.
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