美国标准 ANSI 250.4钢门和金属附件的耐久性

Test item 测试名称: Door is open and closed a prescribed number of times 钢门和金属附件的耐久性

Test info 测试内容:

1) Level C (250k cycles)

30 working days after the sample arrived at LAB

2) Level B (500k cycles)

50 working days after the sample arrived at LAB

3) Level A (1000k cycles)

70 working days after the sample arrived at LAB

Sample size 送样规格: 2pcs finished products

Others 其他信息:

1) Evidence shall be provided that The exit device, door closer and hinges used in testing shall confirm to ANSI/BHMA A156.1, 3 and 4. The device shall shall be set to close the door at an approximate rate of 15 cycles per minute.

Sample for reference 参考图片:

>Sample Report 报告样本：