《BS-MA-16-1971.pdf》由会员分享,可在线阅读,更多相关《BS-MA-16-1971.pdf(20页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD MARINE SERIES BS MA 16:1971 Specification for Inflatable boats (Manual or motor propelled) UDC 629.125.144 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 16:1971 This British Standard, h
2、aving been approved by the Shipbuilding and Marine Industry Standards Committee, was published under the authority of the Executive Board on 30 November 1971 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference SME/4 Draft for comment 70/34472 ISBN 0 580
3、06677 0 Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 16:1971 BSI 02-2000i Contents Page Forewordii 1Scope1 2Inflated buoyancy and carried load1
4、3Compartmentation of inflatable chambers1 4Inflation of boat2 5Hull fittings2 6Standard equipment3 7Testing of materials3 8Testing of completed boat6 9Propulsion7 10Marking8 Appendix A Methods of testing materials9 Appendix B Methods of testing completed boats10 Licensed Copy: London South Bank Univ
5、ersity, London South Bank University, Sat Dec 09 02:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 16:1971 ii BSI 02-2000 Foreword This British Standard has been prepared under the authority of the Shipbuilding and Marine Industry Standards Committee following a request of the Ship and Boat
6、Builders National Federation who considered that there was a need to provide increased protection for users of inflatable boats. Such users might include yachtsmen, fishermen, or the family on holiday, as well as commercial users such as rescue organizations, divers or surveyors. Within these broad
7、requirements the aim of this standard is primarily to ensure quality and to guide manufacturers and those responsible for purchasing, prescribing or recommending inflatable boats, on the minimum performance requirements which can reasonably be expected. Cognizance has been taken of what little infor
8、mation is available among the ISO member bodies with the view to securing the widest possible acceptance and use of this standard. It is important to note that there is separate treatment for life-rafts and boats as required by statutory regulation. These must meet the standards laid down by Interna
9、tional Convention (SOLAS 1960), and by regulations under the Merchant Shipping (life-saying) Appliance Rules. Attention is also drawn to a related standard, BS 3595, “Life-saying jackets”. No attempt has been made to standardize the design form of the boats, which may be used for a wide variety of p
10、urposes. However, the standard does lay down minimum safety requirements and calls for clear markings to show the limitations of the boat in terms of load capacity and motor power. The BSI Technical Committee responsible for the preparation of this British Standard was keenly aware that in many resp
11、ects new ground was being broken. As a result, consideration was given to many facets other than those now included. Of these, the following features merit particular mention: Freeboard. The positioning and actual measurement of freeboard for the purposes of a specification, did present difficulties
12、 when attempting to cover the wide variation of boat form known to be available. However, the conclusion reached was that the compartmentation and stability requirements proposed, together with the imposed limit on carrying capacity, rendered the specific measurement of freeboard unnecessary. Sailin
13、g. The committee thought to include sail propulsion on an equal footing with that of manual and motor propulsion. Unfortunately, little experience is available in the design or handling of such craft. In view of this, the known vagaries of wind action and the imponderables of hull form, the committe
14、e felt that the adoption of a reliable test of comparative performance, where sail was the primary means of propulsion, could not be included in the present edition. However, it is to be hoped that future development and experience will eventually enable the committee to take appropriate account of
15、this feature. This standard makes reference to the following British Standards: BS 903, Methods of testing vulcanized rubber. BS 903-A16, The resistance of vulcanized rubber to liquids. BS 903-A23, Determination of resistance to ozone cracking under static conditions. BS 1088, Plywood for marine cra
16、ft. BS 1204, Synthetic resin adhesives (phenolic and aminoplastic) for wood. BS 2087, Chemical requirements for textiles treated by certain preservative processes. BS 2782, Methods of testing plastics. BS 3396, Woven glass fibre fabrics for plastics reinforcements. BS 3424, Methods of test for coate
17、d fabrics. BS 3496, Glass fibre chopped strand mat for the reinforcement of polyester resin systems. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 16:1971 BSI 02-2000iii BS 3532, Unsaturated polyester r
18、esin systems for low pressure fibre reinforced plastics. BS 3534, Epoxide resin systems for glass fibre reinforced plastics. BS 3691, Glass fibre rovings for the reinforcement of polyester and epoxide resin systems. BS 3702, Method of test for the resistance of a fabric to surface wetting (spray tes
19、t). BS 3749, Woven glass fibre rovings fabrics for the reinforcement of polyester resin systems. BS 2F 100, Inspection and testing procedures, and certain basic requirements for textiles for aeronautical purposes. A British Standard does not purport to include all the necessary provisions of a contr
20、act. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 12, an inside back cov
21、er and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:15:50 GMT+00:00 2006, U
22、ncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 16:1971 BSI 02-20001 1 Scope 1.1 This British Standard specifies minimum safety and performance requirements for inflatab
23、le boats, without limitation of size, having manual or motor operation as the primary means of propulsion. The standard does not apply to inflatable life-rafts. 1.2 Detailed test requirements are included for the materials to be used in the inflatable hull. In some instance, tests have been specifie
24、d for other components but in view of the wide range of materials currently available to boat manufacturers, reliance has been principally placed upon the general and the particular performance requirements as laid down for the complete boat. 1.3 For the purposes of this standard an inflatable boat
25、is one which achieves and maintains its intended shape and buoyancy through the medium of inflation. 2 Inflated buoyancy and carried load 2.1 Rated load. The maximum load which may be carried by the boat shall be rated in kilograms at not greater than 0.75 of the inflated buoyancy chamber volume, at
26、 the designed working pressure (see 4.1), calculated at a proportion of 1 000 kg/m3 of chamber volume, less the load of the boat and equipment as set out below: 2.2 Inclusion of separate chambers. The inflated volume of thwarts or keels or any similar inflatable chamber or compartment shall only be
27、included in the calculation of the rated load if they satisfy each and every one of the following conditions: 1) They are necessary to maintain the shape or structure of the boat in both the flooded and the unflooded conditions. 2) They provide useful buoyancy for the boat in the flooded conditions.
28、 3) They are permanently attached to the hull and inflated independently of it. 4) The construction and materials used satisfy the test requirements for the inflatable hull in accordance with 7 and 8. 5) They satisfy the requirements of 3.2. 2.3 Maximum number of persons to be carried. The maximum n
29、umber of persons which may be carried, corresponding to a rated load determined as specified in 2.1, shall be based upon an allowance of 75 kg for each person after deducting the load of the maximum recommended motor and fuel, as shown below: where F (kg) = load of maximum recommended motor and fuel
30、. The value obtained from the above equation may be rounded down to the nearest whole number when the figure to the right of the decimal point is less than 5, or rounded up when the figure is equal to or greater than 5. 3 Compartmentation of inflatable chambers 3.1 Number of compartments. The inflat
31、ed buoyancy chamber volume used for the purposes of 2.1 shall be contained within a number of separate compartments and in accordance with the following table. Rated loada (kg) = (0.75 V 1 000) M = (750 V) M whereV(m3) = volume of inflated buoyancy chambers (see 2.2) andM(kg) = load of boat with equ
32、ipment normally supplied by the manufacturer and inclusive of that specified in 6.1. a This is the maximum load which may be carried, and is therefore inclusive of motor and fuel where applicable. Boat length overall Minimum number of compartments Boats up to and including 6.7 kWaBoats over 6.7 kWa
33、Up to and including 4.5 m (15 ft)23 Over 4.5 m34 a Motor rating as recommended by the boat manufacturer (see 9.2.5). Maximum number of persons Rated loadF 75.0 - -,= Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:15:50 GMT+00:00 2006, Uncontrolled Copy, (c)
34、BSI BS MA 16:1971 2 BSI 02-2000 3.2 Proportions of compartments. The volume of each compartment required by 3.1 shall lie within the limits given by the following expression: 4 Inflation of boat 4.1 Working pressure. The working pressure shall be specified (as a gauge pressure) in the manual supplie
35、d by the manufacturer see 6.1 4) and shall be applicable to each compartment of the fully-inflated boat. In order that the user may ascertain that the specified working pressure has been reached, the manufacturer shall provide an appropriate pressure gauge for this purpose. Alternatively, instructio
36、ns shall be included in the supplied manual which will enable a sufficiently close estimate to be made. 4.2 Means of inflation. All boats shall be fitted for inflation by means of an efficient hand-operated or foot-operated bellows which shall be provided for this purpose by the manufacturer of the
37、boat. The apparatus shall be deemed to be efficient if it is capable of completing the operation within a period of time which shall be specified by the manufacturer. 4.3 Limitation of pressure. The apparatus supplied for the inflation of the boat shall, when operated in the manner specified by the
38、manufacturer in the manual of instructions, be incapable of inflating the boat to a pressure greater than 55.0 kN/m2. 4.3.1 In the case of a boat designed specifically for inflation from a high pressure source, means shall be provided to limit the pressure in each compartment. 4.4 Deflation. With th
39、e exception of relief valves (see 5.2.2) the means of deflating of the hull shall be by manual operation and capable of subsequent re-closing. The deflation of any one compartment shall not of itself cause a loss of gas or air from any other of the remaining compartments. 5 Hull fittings 5.1 General
40、 5.1.1 Any load-bearing fitting attached to the inflatable hull shall not cause any impairment in the inflated buoyancy of the boat when loaded to failure point. 5.1.2 The materials and construction used shall be compatible with that of the hull itself, taking into account the conditions of contact
41、with salt or fresh water. 5.2 Valve assemblies 5.2.1 Valve assemblies shall be of corrosion-resistant materials. Where the valve assembly is deemed to have sharp edges or abrasive surfaces, a protective cover, capable of removal from the valve but securely attached to the boat, shall be fitted. 5.2.
42、2 Relief valves, when fitted, shall be tested in situ on the completed boat to within the tolerances specified by the manufacturer. These valves shall be automatic in operation both when relieving pressure and when re-seating. 5.2.3 Valve assemblies used for inflation or deflation of the hull shall
43、be simple to operate, but protected against inadvertent operation or dislodgement. Inflation valves shall be readily accessible from within the boat. 5.3 Hand-holds 5.3.1 Provision shall be made for the users of the boat to be able to hold on securely to the boat from an inboard position when seated
44、 as occupants (see 8.5.3.2), and from outboard when freely floating in the water. 5.3.2 Handholds may be either of rigid or non-rigid construction. They shall be free from any flaws, rough edges or surface irregularities, likely to cause injury when gripped by hand. The surface shall be unpolished o
45、r non-slip. 5.3.3 All handholds shall be capable of withstanding a steady load of 490 N applied in any direction. where V (m3) = volume of the inflated buoyancy chambers (as in 2.1 and 2.2) and n = total number of compartments. V n - -1 0.20(), Licensed Copy: London South Bank University, London Sou
46、th Bank University, Sat Dec 09 02:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 16:1971 BSI 02-20003 5.4 Rowlocks 5.4.1 The material shall be free from flaws, and of rigid or semi-rigid construction. The bearing surfaces of the oars and rowlocks shall be free from any roughness likely to ca
47、use undue abrasion of either. 5.4.2 Rowlocks shall be so designed as to permit a full stroke of not less than 60 of arc to be made in the ahead and astern directions. 5.5 Towing point 5.5.1 Each boat shall have firmly fixed to the hull at the bows a fitting suitable for securing a tow-line or painte
48、r. The suitability of the fitting shall be demonstrated by fulfilling the requirements of the towing test set out in 8.6. 6 Standard equipment 6.1 The following items of equipment shall be provided by the manufacturer with each boat: 1) Hand-operated or foot-operated bellows. 2) One pair of oars (wi
49、th rowlocks) or paddles. 3) Repair outfit. This shall be suitable for repairing small punctures of limited extent, and include instructions for use. 4) A manual of instructions. NOTEIn addition to the mandatory requirements of 4, the manual should be couched in simple terms, sufficient to enable the user to prepare the boat for use afloat. Guidance should also be given on the maximum rated load (in terms of the number of persons which may be carried), drying, storage, and servicing of the boat. 7 Testing of materials Any ma
链接地址:https://www.31doc.com/p-3748999.html