|
US$234.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 19387-2012: Portable chain-saws -- Test methods of chain brake performance
Status: Obsolete GB/T 19387: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 19387-2012 | English | 234 |
Add to Cart
|
3 days [Need to translate]
|
Portable chain-saws -- Test methods of chain brake performance
| Obsolete |
GB/T 19387-2012
|
| GB/T 19387-2008 | English | 199 |
Add to Cart
|
3 days [Need to translate]
|
Portable chain saws -- Chain break performance
| Obsolete |
GB/T 19387-2008
|
| GB/T 19387-2003 | English | 199 |
Add to Cart
|
3 days [Need to translate]
|
Chain-saws -- Chain brake performance
| Obsolete |
GB/T 19387-2003
|
PDF similar to GB/T 19387-2012
Basic data | Standard ID | GB/T 19387-2012 (GB/T19387-2012) | | Description (Translated English) | Portable chain-saws -- Test methods of chain brake performance | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B96 | | Classification of International Standard | 65.060.80 | | Word Count Estimation | 6,669 | | Older Standard (superseded by this standard) | GB/T 19387-2008 | | Quoted Standard | ISO 6531 | | Adopted Standard | ISO 6535-2008, IDT | | Regulation (derived from) | National Standards Bulletin No. 9 of 2012 | | 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 portable chainsaw chain brake manually on the braking time and release force testing methods. | GB/T 19387-2012: Portable chain-saws -- Test methods of chain brake performance---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.
Portable chain-saws. Test methods of chain brake performance
ICS 65.060.80
B96
National Standards of People's Republic of China
Replacing GB/T 19387-2008
Portable chain saws chain saws brake performance test methods
(ISO 6535.2008, Portablechain-saws-Chainbrakeperformance, IDT)
Issued on. 2012-05-11
2012-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 19387-2008 "portable chainsaw chain saw brake performance," compared with the GB/T 19387-2008 Main
Technical changes are as follows.
--- Modify the standard Chinese name from "portable chainsaw chain saw brake performance" with "portable chain saw saw chain brake resistance
Can test methods ", the English name of the corresponding by" Portablechain-saws-Chainbrakeperformance "to" Port-
ablechain-saws-Testmethodsofchainbrakeperformance ";
--- Modify the "scope" of the content, delete the "scope" of "content requirements recommended by the saw chain brake performance indicators", delete the text
Corresponding "performance requirements and recommended targets" reg;
--- Added "normative references", introduced for "ISO 6531" reference (see Chapter 2);
--- New "terms and definitions", the original standard 6.1.1 "Brake time" and "saw chain is braked criteria" to the term "brake
Time "given in the form (see Chapter 3);
--- Added "test subjects", the original "performance requirements and recommended targets" section of the test strips into a chain saw request for "test subjects"
Requirements (see Chapter 4);
--- "Measuring instrument" add "the pendulum" parameter accuracy requirements (see 5.6);
--- Delete "before the test preparation" in the "ambient temperature" and "must not add oil" and other requirements (see Chapter 6);
--- Deletion "method" content "pilot program" (2003 Version 6.1.1);
--- Given in the "Test Procedures General" specific parameters required "before the pendulum impact guard" on when and increases illustrated (see
7.1.1);
--- "Pre-operation" in the new pre-operation precautions requirements and pre-operation time interval requirements (see 7.1.2);
--- "Initial test" add "during the test, when the engine speed exceeds high idle speed, the trial invalid, and repeat
The trial "requirement (see 7.1.3);
--- "Release force (static test)" in the new release force measuring time requirements (see 7.2);
--- Original standard 1 title from "static test release force" to "release force measuring direction" (see figure 2, 2003 map 1).
This standard uses the translation method identical with the international standard ISO 6535.2008 "Portable chain saw chain saw brake performance."
Correspondence between the consistency of the standards of international documents and normative references of the following documents.
--- GB/T 18960-2012 forestry machinery - Portable chain saw Vocabulary (ISO 6531.2008, IDT).
This standard was proposed by the State Forestry Administration.
This standard by the National Forestry Machinery Standardization Technical Committee (SAC/TC61) centralized.
This standard is drafted by. Zhejiang Ma Yuanlin machine Limited.
Participated in the drafting of this standard. Zhejiang Jiang Sanfeng Industrial Co., Ltd., Harbin Forestry Machinery Research Institute of the State Forestry Administration, Wenling Leo
Garden Machinery Co., Ltd.
The main drafters of this standard. Jiang Zhi, Zhou Lin, Wang Zhendong, Yang Feng, Shi Wei.
This standard was first released in November 2003, May 2008, the first revision to the second revision.
Portable chain saws chain saws brake performance test methods
1 Scope
This standard specifies the test method for the saw chain brake manually portable chain saw on the brake and release force.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
ISO 6531 Forestry machinery - Portable chain saw vocabulary (Machineryforforestry-Portablechain-saws-Vocab-
ulary)
3 Terms and Definitions
As defined in ISO 6531 and the following terms and definitions apply to this document.
3.1
Braking time brakingtime
Stop interval instant motion from the moment the pendulum pre-impact guard to the saw chain.
NOTE. To avoid vibration saw chain and sprockets caused false positives, when two consecutive sprocket by measuring points more than 10ms, the saw chain has been considered
It is braked.
4 test subjects
The test shall be performed on the same model equipped with provisions guides and three standard saw chain saws.
5 Test Instruments
5.1 tachometer with an accuracy of ± 2.5%.
5.2 chronograph, comprising a sensor accuracy of ± 5ms.
5.3 Test brakes activated sensing device.
5.4 Test saw chain motion sensing device.
5.5 dynamometer with an accuracy of ± 1N.
5.6 impact pendulum swing end face diameter 50mm ± 1mm \u200b\u200bplane, the distance from the center of the rotary axis to swing between the center lines, namely arm
A length of 700mm ± 5mm, the arm should be as light as possible, swing from near 200mm height difference (see Fig. 1) at the fall, you should be able to produce
The impact energy 0.05J 1.4J ±.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 19387-2012_English be delivered?Answer: Upon your order, we will start to translate GB/T 19387-2012_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 19387-2012_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 19387-2012_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. Question 5: Should I purchase the latest version GB/T 19387-2012?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 19387-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|