|
US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 26392-2011: Slow recovery foam -- Determination of recovery time
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 26392-2011 | English | 139 |
Add to Cart
|
3 days [Need to translate]
|
Slow recovery foam -- Determination of recovery time
| Valid |
GB/T 26392-2011
|
PDF similar to GB/T 26392-2011
Basic data | Standard ID | GB/T 26392-2011 (GB/T26392-2011) | | Description (Translated English) | Slow recovery foam -- Determination of recovery time | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G32 | | Classification of International Standard | 83.100 | | Word Count Estimation | 6,669 | | Date of Issue | 2011-05-12 | | Date of Implementation | 2011-09-15 | | Quoted Standard | GB/T 2918-1998; GB/T 6342-1996 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 6 of 2011 | | 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 slow rebound foam recovery time after compression method. This standard applies to slow rebound foam recovery time measurement. | GB/T 26392-2011: Slow recovery foam -- Determination of recovery time---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.
Slow recovery foam. Determination of recovery time
ICS 83.100
G32
National Standards of People's Republic of China
Slow rebound foam measured recovery time
Issued on. 2011-05-12
2011-09-15 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard reference American Society for Testing and Materials standard ASTMD3574-2008 "flexible porous material block, bonded and molded poly
Standard Test Method for urethane foam "recovery time measured in TESTM partially developed, the technical content and ASTMD3574-
2008 TESTM same.
The standard proposed by China National Light Industry Council.
This standard by the National Standardization Technical Committee of plastic products.
This standard was drafted. Jiangsu Institute of Chemical Co., Ltd., Beijing Technology and Business University, Jiangsu Province, polyurethane products quality supervision and inspection stations.
The main drafters of this standard. Wu Hao, Chen Qian, Zhang Zhizhong Zhou Nan skullcap, Shen Wei Hua.
Slow rebound foam measured recovery time
1 Scope
This standard specifies the method for determination of the recovery time after the slow rebound foam under pressure.
This standard applies to the determination of the slow rebound foam recovery time.
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 2918-1998 standard plastic sample conditioning and environmental tests (idt ISO 291.1997)
GB/T 6342-1996 plastics and rubbers - Determination of linear dimensions (idt ISO 1923. 1981)
Principle 3
Slow rebound foam is applied to the sample indentation force, to produce a predetermined deformation, after holding a predetermined time, the measurement sample required basic rehabilitation
time.
4 Test Instruments
Instrument uses a 203mm diameter circular flat indenter, through flexible swivel joint is connected with the load measuring device, thereby
The instrument can be (1000 ± 100) mm/min sample rate of indentation, thus producing deformation. The instrument has a horizontal supporting plate for supporting the
Sample support plate opening has a diameter of about 6.5mm, hole spacing of 20mm, so that the air can be discharged from below the sample during the test.
5 Sample
5.1 Sample Requirements
Specimens should be able to meet part of the requirements of the test sample.
Arbitration test, at least the production of foam samples 7d or more.
5.2 Sample Size
Unless otherwise specified, the sample size should not be less than 380mm × 380mm × 100mm, the thickness of the sample is not equal to 100mm, and should try
Indicate the thickness of the sample inspection report.
Sample size according to the provisions of GB/T 6342-1996 measure, parallelism tolerance parallel to the plane should not exceed 1%.
5.3 Number of specimens
A test specimen, or by the supply and demand sides agreed to determine the number of samples.
6 for conditioning and testing environment
According to the provisions of GB/T 2918-1998, the specimen before the test should be at a temperature of (23 ± 2) ℃, relative humidity (50 ± 10)% into the environment
Line conditioning, settling time less than 16h. In the same conditioning test environment.
7 Test procedure
The sample is placed on the support plate, so that the pressure head drop, contacts the sample, the sample is applied to pre-load 4.5N to the point of origin determination test
The initial thickness of the sample.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 26392-2011_English be delivered?Answer: Upon your order, we will start to translate GB/T 26392-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 26392-2011_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 26392-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|