GB 4302-2008Life buoy (English PDF)

3.1 Classification

Lifebuoy by the manufacturing process is divided into.

a) A type --- integral lifebuoys;

b) Type B --- inner shell-filled life preserver.

3.2 Structure type

Lifebuoy structure type shown in Figure 1.

1 --- body;

2 --- grabline;

3 --- reflective tape.

Structure type Figure 1 lifebuoy

3.3 Tag example

Integral lifebuoy mark.

Lifebuoy GB 4302-2007 A Housing-filled life preserver marked.

Lifebuoy GB 4302-2007 B

4.1 Appearance

4.1.1 Lifebuoy skin color should be orange-red, and no color.

4.1.2 Lifebuoy surface should be no bump, no cracking.

4.1.3 four equal intervals along the perimeter of lifebuoy position should surround with retro-reflective tape affixed with 50mm width.

4.2 Dimensions

4.2.1 The lifebuoys should be less than the outer diameter of 800mm, an inner diameter of not less than 400mm.

4.2.2 lifebuoy shall be fitted with a peripheral diameter of not less than 9.5mm, the length is not less than 4 times the outer diameter of the lifebuoy buoyant grabline. This should be a tight rope Solid body in the circle surrounding four equidistant positions, and form four equal length grommet.

4.3 wt.

Lifebuoy weight should be greater than 2.5kg. With a self-activating smoke signal and a self-bright light floating buoy attached speed polishing apparatus, the weight should be greater than 4kg.

4.4 Material

Integral lifebuoy material and the inner shell rechargeable lifebuoy filled with closed-cell foam material shall be material.

4.5 Performance

4.5.1 The lifebuoys should be resistant to high temperature, no shrinkage, cracking, swelling, decomposition.

4.5.2 Lifebuoy cast backward from a predetermined height, should be no cracking or breaking.

4.5.3 lifebuoy should oil, no shrinkage, cracking, swelling, decomposition.

4.5.4 lifebuoy should be fire-resistant, not burning or continue melting after the fire.

4.5.5 Lifebuoy should be capable of supporting 14.5kg of iron in fresh water continuously float 24h.

4.5.6 Lifebuoy hanging in the free case, it should be able to withstand the weight of 90kg sustained 30min and permanent deformation without rupture.

4.5.7 For machines with self-activating smoke signal and a self-bright light floating buoy attached speed throwing device, shall be released to trigger the device.

4.6 Attachments

Life buoy can be equipped with attachments, including a buoyant lifeline, from bright lights floating or self-activating smoke signal.

5.1 Appearance and attachments

Lifebuoy were visually inspect the appearance and attachment, the result should meet the requirements of 4.1 and 4.6.

5.2 Dimensions

With the general inspection lifebuoy measuring the size, the results should meet the requirements of 4.2.

5.3 wt.

Check the weight of the lifebuoy by weighing method, the results shall comply with the requirements of 4.3.

5.4 Material

The lifebuoy ring longitudinally cut, the material inspection results should meet the requirements of 4.4.

5.5 High temperature cycling

Lifebuoy experience the following temperature cycling process.

a) The lifebuoy into the room temperature, not lower than 65 °C high temperature environment, the sustained 8h;

b) after 8h, at normal temperature of 20 °C ± 3 °C left open 24h;

c) then placed in a cold room lifebuoy, not higher than -30 °C low temperature environment, the sustained 8h;

d) after 8h, at normal temperature of 20 °C ± 3 °C left open 24h;

e) is repeatedly performed a) ~ d) 10 cycles.

After the inspection test results should meet the requirements of 4.5.1.

5.6 Drop

In the ship in the lightest seagoing draft status, whichever is greater between life buoy stock height on a ship or offshore and 30m height, Lifebuoy in the throw overboard. Then, to the lifebuoy from 2m height fell to the concrete floor vote, repeated three times. Results should conform to 4.5.2 Claim.

5.7 Oil

5.5, 5.6 will go through life buoy tested at room temperature immersed 100mm horizontal ram diesel 24h, the results should be consistent with 4.5.3 Requirements.

5.8 Refractory

The test pots 30cm × 35cm × 6cm placed no wind, the test pots implantation depth of 1cm of water, and then injected into the gasoline, Pot liquid to total depth of not less than 4cm. Ignite gasoline, free burning 30s, and then an 5.5, 5.6 but not subjected to the test to save oil Green circle free lift, and the bottom of the basin above the top edge of the test 25cm, the life buoy upright to move forward through the flames, fire time is 2s. Results should meet Meets the requirement of 4.5.4.

5.9 Floating

The lifebuoy 5.5 to 5.8 after the tests were accompanied by no less than 14.5kg of iron to float in fresh water 24h, results shall comply with the requirements of 4.5.5.

5.10 Strength

Tape with a width of 50mm to a lifebuoy lift, then the weight of 90kg objects with the same tape the other suspended Hanging on its lower side, sustained 30min. After the inspection test results should meet the requirements of 4.5.6.

Utility 5.11

The Floating Light and bright with self and self-activating smoke signal driving the analog station or offshore facility from the release position to release the ship, the result should Comply with the provisions of 4.5.7.

6.1 Inspection classification

Lifebuoys inspection is divided into type test and factory inspection.

6.2 Type inspection

6.2.1 Lifebuoy one of the following conditions, type of inspection should be carried out.

a) identification of new products (shape);

There are significant changes b) structure, materials, processes, etc., enough to affect product performance or quality;

c) After every mass 4a;

d) Product Discontinuance 2a above, to resume production;

e) when the competent authorities have inspection requirements.

6.2.2 Lifebuoy type test items and the order in Table 1.

Table 1 lifebuoy test items and order

Reg number type test factory inspection reg number test methods required for test item number

1 Appearance and attachments 4.1 and 4.6 5.1 - -Size 2 4.2 5.2 - -Book GB 4302-2008

Table 1 (continued)

Reg number type test factory inspection reg number test methods required for test item number 3 wt 4.3 5.3 - -

4 Materials 4.4 5.4 - -

5 High temperature cycling 4.5.1 5.5 - -6 drop 4.5.2 5.6 - -