compression resistance footwear:耐壓縮（安全鞋、工作鞋、劳保鞋测试耐压缩）

compression resistance footwear shall also meet the requirements of 5.1 for impact resistance footwear.

     耐壓縮和耐沖擊一樣必需要要求的。

Footwear shall be designed, constructed, and manufactured so that a protective toe cap is an integral and permanent part of the footwear.

 the workmanship in the production and assembly of the footwear shall ensure that the footwear provides functionality to the wearer.

     這種鞋類（安全鞋、工作鞋、劳保鞋）在產品和裝備能保証保護穿著者的足部不受傷害。

 Classification shall be determined by evaluating three specimens in accordance with test methods F2412.the product classification for compression resistance represents the minimum having a minimum interior height clearance of 12.7mm(0.50in) in men’s footwear and 11.9mm(0.468in) in women’s footwear.

F2412測試方法由三個測試樣品評估來決定分級,其耐壓縮結果鐵頭內部區域間隙男鞋最少12.7mm(0.5in)，女鞋最少為11.9mm(0.468in.)。

compression resistance of footwear shall be classified as follows:

     安全鞋、工作鞋、劳保鞋耐壓縮鞋類的分類如下：

  Class 75 product classification men’s footwear shall demonstrate a minimum interior height clearance of 12.7mm(0.50in) during exposure to a compressive force of 11121N(2500Ibf).

等級為75鞋類男鞋其間隙為12.7mm(0.50in )，在期間使用壓力11121N(2500Ibf).

     Class 75product classification women’s footwear shall demonstrate a minimum interior height clearance of 11.9mm(0.468in) during exposure to a compressive force of 11121N(2500IBF).

等級為75鞋類鞋其間隙為11.9mm(0.468in )，在期間使用壓力11121N(2500Ibf).

  Class 50 product classification men’s footwear shall demonstrate a minimum interior height clearance of 12.7mm(0.5in), during exposure to a compressive force of 7784N(1750IBF).

等級為50鞋類男鞋其間隙為12.7mm(0.50in )，在期間使用壓力7784N(1750Ibf).

  Class 50 product classification women’s footwear shall demonstrate a minimum interior height clearance of 11.9mm(0.468in) during exposure to a compressive force of 7784N(1750IBF).

 等級為75鞋類女鞋其間隙為11.9mm(0.468in )，在期間使用壓力7784N(1750Ibf).

 any specimen that does not meet the minimum compression resistance requirements for the product classification constitutes a failure for the product category.

     任何測試片不能小於壓縮分類執行要求如低於此要求就不能例入此種產品類型。

 compression resistant footwear shall be retested for classification for any of the following changes:

      保護鞋類或樣品測試等級分類有以下轉換：

Change in material to make protective cap, change in protective toe cap manufacturer, or changes in the design of the toe cap.

    材料使用轉換為保護頭，保護頭轉換供應商，或轉換鐵頭的構造。

  Change in construction method used to make footwear.

   轉換鞋類習慣的構造方法。

Change in the upper or insole material thickness greater than 25%, change to the soling system, or a change in the hardness of the outsole.

    鞋面材料和內底的厚度(或超過25％)，外底硬度的轉換

    Shape of last used in manufacturing of footwear,

    鞋楦的外型的改變。

classifications—protective footwear shall be classified in accordance with the tables for its ability to meet compression resistance and impact resistance .the proper classification shall be determined by the test results of three specimens for each requirement.

       分級：安全鞋、工作鞋、劳保鞋的耐沖擊和耐壓縮是依三個試樣的測試結果之要求來決定適當的分類。

the lowest recorded compression or impact resistance of the three test specimens will determine the footwear classification, if the product fails to meet the class for which it is intended, you must retest, for example, if a product test results meet class 50 for compression resistance and class 75 for impact resistance, the rating of the footwear will be I50/C50,

      記錄耐沖擊和壓縮三個最低測試樣品來決定分類，

Classification table impact沖擊分級

I/75=75ft-Ibs(101.7J)

I/50=50ft-ibs(67.8J)

Classification table compression 壓縮分級

C/75=2500IB(11121N)

C/1750IB(7784N)

Minimum clearance (all classification)膠泥高度

Men=0.500in(12.7mm)

Women=0.468in(11.9mm)