The safety net is a secure facility for the protection of sites such as construction sites and high-altitude operations. Safety net testing is essential to ensure the quality and reliability of safety nets. What are the safety net sampling standards? What are the costs of testing? This paper will provide a detailed account of the situation, along with the safety net cma and cnas tests。
Safety net top break test equipment
Safety net testing sampling quantity criteria
Safety net testing of sampling quantities is based on relevant standard requirements. In general, the quantity of samples should represent the safety net quality of the entire batch. Specific sampling quantity criteria may refer to criteria such as those specified in the gb 5725-2009 safety net。
The number of samples sampled for different detection projects varies, for example:
Fractal force (kn) x fracture extension (mm): 3 samples each of randomly removed wide (50 μs1) mm and long (300 μs 5) mm from the web along long, wide directions。
Strength resistance in the seam area: randomly intercepts three samples of wideness (50s-1) mm. Long (300s-5) mm from the web and ensures that the seam is in the centre of the specimen。
Ladder torn power: randomly intercepts three samples of 75 mm wide and 150 mm long from the net in a long, wide direction. Cut 10 mm in the middle of the long test。
(b) power of an open-eyed ring: three samples taken from the edge of the net in a long and wide direction, specifying the length of the network along the side of the net (450s-5) mm, the retention of a line to dump more than 200 mm, and an open-eye button in the centre, with a net length greater than 300 mm。
These are only some of the sampling criteria for the project and, if there is any doubt, any further information is readily available for consultation with the central steel national inspection。
Safety net testing report - csna case
China steel state inspection, an established state firm, is the first third-party impartial technical inspection agency to be established by the general directorate of quality inspection. It now has cal, cma, cnas, ilac, bridge, special equipment, safety production and inspection. It has been in the deep tillage industry for 40 years and has had extensive experience in safety net testing. The following is a code-coded safety net test commissioned by a construction unit from the central steel state inspectorate. Three tests have been commissioned
Sample name: cyclical safety net
Number of samples: 2 m2
Type of detection: commissioning testing
The test criteria are based on:
1. Gb/t 5455-2014 determination of the length of vertical destruction, incendiary combustion and the time of renewal of textile burning performance
2. Gb 5725-2009 safety net。
Basis for determination: gb 5725-2009 safety net
Detected projects: 1. Flammable safety nets: 2. Fragmentation resistance; 2. Fracking safety nets: break power x break extension; 3. Fracking safety nets: tread formation torn strength。
Test project results:
Test findings: seat-based safety nets in the project to which the sample was sent: break-up power x long stretch, ladder-based torn strength is undecided only by the results of the test, and high-profile safety nets: flame retardation meets the criteria of gb 5725-2009。
The above is the results of the sino-steal state inspection, based on a sample-testing project commissioned by a unit, of the cyclical safety net, which was stamped with relevant qualifications, legally valid, nationally recognized and widely used。
What's the safety net fee
Safety net testing fees, which are of concern to many clients, are not currently regulated uniformly in the market because they are influenced by a number of factors, such as the number of safety net testing projects, the number of cases where clients have commissioned only three tests, the number of other clients who have commissioned more comprehensive and more tests, and the number of clients who have only had to test one of them, so that safety net testing costs are affected by client-commissioned testing projects, and the number of general testing projects is higher and the total cost is higher and the unit price is relatively advantageous. There are also different detection capabilities, safety net authorizations, social acceptance of test reports and different fees. When selecting a testing agency, it is recommended that, while paying attention to price testing, attention should also be paid to the qualifications, strength and reputation of the agency. In addition, safety net testing costs are affected by the number of tests, regional differences, special requirements (urgent processing)。
As a result, safety net testing fees are not uniform. If you have safety net testing needs and if you want to know the price of testing in detail, you may wish to consult the china steel national inspection, which is a national testing unit, which, apart from the perceived strengths and service advantages, is more transparent and reasonable. It would be welcome to communicate with engineers on a regular basis on specific test samples and test project indicators and to obtain detailed quotation lists。
