欧洲处破女www人鲁,亚洲无玛,国产bbaaaaa片,三年片在线观看免费播放大全电影国语版

百檢網首頁 我的訂單 400-101-7153

ISO/IEC 15412-1999

作者:百檢網 時間:2021-08-03

標準號:ISO/IEC 15412-1999
發布日期:1999/12/31 12:00:00
實施日期:1999/12/31 12:00:00
國際標準分類號:35.180
適用范圍:For the purposes of this International Standard, a portable computer is defined as a computer with a screen and an attached keyboard that is capable of running on battery power for extended periods of time and is relatively easy to transport from one location to another by a single individual. This International Standard gives design guidance for product designers; this International Standard indicates those requirements and recommendations contained in ISO/IEC 9995 and ISO 9241-4:1998 that are to be considered in designing portable computers keyboards. This International Standard strives to maintain consistency, as far as practical, between keyboards for portable computers and desktop computers. To accomplish this goal, this International Standard has reviewed ISO/IEC 9995 and ISO 9241-4:1998 to identify those design features of these two base standards which are to be followed, which are exempted from this International Standard and which are permitted variations. This International Standard is intended primarily to apply to full size portable keyboards (e.g. A4). It may also apply to other keyboards outside this scope. ISO 9241-4 contains a proposed alternative method for conformance by a test based on user performance and subjective rating scales. This International Standard consists of two major categories of guidelines for portable computers: 1. Layout characteristics 2. Physical (ergonomic) characteristics

相關標準

百檢網專注于為第三方檢測機構以及中小微企業搭建互聯網+檢測電商服務平臺,是一個創新模式的檢驗檢測服務網站。百檢網致力于為企業提供便捷、高效的檢測服務,簡化檢測流程,提升檢測服務效率,利用互聯網+檢測電商,為客戶提供多樣化選擇,從根本上降低檢測成本提升時間效率,打破行業壁壘,打造出行業創新的檢測平臺。

百檢能給您帶來哪些改變?

1、檢測行業全覆蓋,滿足不同的檢測;

2、實驗室全覆蓋,就近分配本地化檢測;

3、工程師一對一服務,讓檢測更精準;

4、免費初檢,初檢不收取檢測費用;

5、自助下單 快遞免費上門取樣;

6、周期短,費用低,服務周到;

7、擁有CMA、CNAS、CAL等權威資質;

8、檢測報告權威有效、中國通用;

客戶案例展示

  • 上海朗波王服飾有限公司
  • 浙江圣達生物藥業股份有限公司
  • 天津市長慶電子科技有限公司
  • 桑德斯微電子器件(南京)有限公司
  • 上海嘉疊貿易有限公司
  • 上海紐特絲紡織品有限公司
  • 無錫露米婭紡織有限公司
  • 東方電氣風電(涼山)有限公司
  • 寧波圖米文具用品有限公司
  • 江蘇力之創特種裝備制造有限公司

相關資訊

暫無相關資訊

最新資訊

百檢網
主站蜘蛛池模板: 老河口市| 旌德县| 凤冈县| 鄂尔多斯市| 蚌埠市| 广宁县| 故城县| 乌兰县| 潮安县| 板桥市| 崇信县| 云阳县| 宁德市| 红河县| 汽车| 香河县| 汕尾市| 陆川县| 斗六市| 新和县| 疏附县| 清涧县| 富宁县| 错那县| 财经| 旬邑县| 澄城县| 固镇县| 保亭| 东辽县| 兴山县| 乡城县| 镇平县| 苏州市| 崇文区| 乳山市| 壶关县| 饶河县| 乌海市| 通海县| 屏南县|