BS 3F 126:2002
$86.31
35 g/m2 nylon parachute fabric
Published By | Publication Date | Number of Pages |
BSI | 2002 | 12 |
This British Standard specifies the requirements for a range of nylon fabrics, of nominal mass per unit area of 35 g/m2 for aerospace purposes, primarily for parachute canopies.
NOTE The information to be supplied by the purchaser in the contract or order should be as listed in Annex A.
PDF Catalog
PDF Pages | PDF Title |
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1 | BRITISH STANDARD AEROSPACE SERIES |
2 | Committees responsible for this British�Standard |
3 | Contents |
5 | 1 Scope 2 Normative references 3 Terms and definitions heat ageing intermingle 4 General requirements 4.1 In addition to the requirements specified in Clause 4.2 The breaking force and elongation at break of the yarn (see 4.3 The yarn twist shall be determined in accordance with BS�EN�ISO�2061, except that the number … |
6 | General requirements (given in BS F 100) 5 Yarn 5.1 Type 5.2 Properties Yarn twist |
7 | 6 Manufacture 6.1 Fabric 1316 shall be plain weave. Other fabrics shall be plain weave with a rip-stop pattern … 6.2 Fabric 220 shall have ribs spaced at constant pitch. These shall be formed by two ends in the… 6.3 Fabrics 254 and 1312 shall have ribs spaced at constant pitch. These shall be formed by four … 7 Finish 7.1 General 7.2 Dyeing 7.3 Calendering 7.4 Silicone treatment |
8 | 8 Construction and properties of finished fabric 8.1 When tested in accordance with 8.2 Unless otherwise stated by the purchaser in the contract or order (see Construction and properties of finished fabric 9 Permeability Permeability requirements 10 Water extractable matter 11 Identification |
9 | (informative) Information to be supplied by the purchaser (informative) Information to be supplied by the purchaser (normative) Heat ageing test (normative) Heat ageing test Principle Apparatus Tensile testing machine Laboratory oven Suitable timer Wrap wheel Heat-resistant gloves Means of suspending the yarn samples in the oven Tie-on labels Conditioning and testing atmosphere Test specimens Unwrap and discard the surface layers from each package to be tested. Using the wrap wheel, run off from each package sufficient yarn to carry out five tests. Tie the free ends together to form a skein, release the retractable arm of the wrap wheel, and re… Double the skein and attach a label noting the specimen reference. Repeat Procedure Set the oven temperature to (180 ± 2)�°C. For the yarn that is to be heated, suspend each folded skein from a bulldog clip on the rod, or f… |
10 | When the oven is at the required temperature, open the oven door, immediately insert the rod or h… Start the timer. After (60 ± 1) min put on heat-resistant gloves, open the oven door and remove the rod or frame. Hang the skeins to condition in the standard atmosphere for testing defined in Determine the breaking strength of the unheated and the heated specimens. Using one of the follow… Record the breaking strength in newtons to the nearest 0.1�N. Calculation and expression of results Calculate the mean breaking strength for the unheated control sample and for the heated sample in… Calculate the percentage strength loss as follows: Report Report the percentage strength loss of the material tested to the nearest 0.1�%. Report the test conditions used (see� |