ynging0

1. Sun 3 puncture-proof performance; the prick test, nails cannot penetrate the substrate. 1. non-slip soles 4 gear or skid pattern. 1.5 thermal treatment type wearing leather safety footwear subject to heat and flame resistance tests, without deformation, the burning rate is not more than 1 mm/s. 1. 6 the total weight not exceeding 2 kg per pair of shoes.   womens vibram treksport   1.7, other Ministerial standard performance requirements according to the Ministry, stitching shoes SG27-74, molded leather shoes implementation SG24-74. 2. test method for 2. 1 static pressure test. 2.1. 1 test equipment: ± 1% accuracy of pressure test machine, minimum tick value is less than 5 kg, measuring range shall be not less than 2,000 kg. Platform diameter test is greater than 75 mm, upper and lower platforms in parallel state. 2.1. 2 preparation of test pieces: backward extension baotou of rear edge of the product within the top 25 ± 3mmFodera out, the remaining parts were cut, leaving just the tip and sole as a sample, sample diagrams such as Figure 1. 2.1.

 3 test methods in baotou in the highest part of the sample, Add the dough cylinder with a diameter of 22 mm height and silly PuTTY in the sample area in the Centre of pressure testing platform. 3-5 minutes of slow compression, when the pressure reaches 1, 400kgf shut down after 1 minute and then bring pressure to zero: remove Silly Putty and measure its height. Qualify more than 15 mm. 2. impact test 2: 2.2. 1 test impact structure as shown in Figure 2. 2.2. 2 preparation of test pieces: 2.1. 2.2. 2. test methods 3: test  womens vibram komodosport weight 23 ± 0 machine. 2 kg. Fixed the drive model, drop height adjustment of weights according to the table 1. And then bring the free-fall impact test weight. After testing, remove the dough was measured, qualified more than 15 mm. 2. 3 shoes hit the puncture-proof test: 60° (standard GB346-75) nail, put on the press platform, using plasticine set erected, placed on soles foot pressure slowly to the center when the pressure reaches 50kgf control stand. 2.4 heat resistance test: sample placed in 100 ± 5° c in the oven, bake for 20 minutes, testing after cooling to room temperature. There must be no deformation, cracking phenomenon. 2. fire resistance test 5: the vamp of the

sample is cut into 150x13mm strips, clamping titration device and making it a 45° angle with the horizontal direction. Then use an alcohol lamp fuel and the lower end determining the distribution of centrally located fiammaIn, calculates the speed of combustion. Speed of sample count to three, taking his average speed for burning. 3. Inspection Regulations 3. 1 identification of the product's technical department must be designated by the State, in line with the requirements of this standard and qualified certificate can only be production and sales. 3.2 products are controlled by the manufacturer in accordance with this standard before it can be produced and a product certificate issued by technical supervision departments and verification and identification. 3.3 products should be made through Visual inspection, other according to standard rules. With 1,000 pairs as a set of 2 ‰ random sampling, as the static pressure, shock tests have an unqualified person, double sampling review once again, if you still have an unqualified person, double