灰卡的期间核查方法

橡皮擦

前段时间CNAS认证，提到灰卡的期间核查，现抛砖引玉，与大家分享。
若有更好的方法，希望大家不吝赐教。

Grey Scale Verification

Procedure for checking grey scales

For control grey scale

* The control scales must be stored in the dark and vacuum container.

1.
Once received, the colour difference at grey 4 will be measured by spectrophotometer as initial difference value.
2.
After 1 year of storage, the colour difference at grey 4 will be re-measured by spectrophotometer as checked value difference.
3.
If the difference between initial and checked values is less than 0.25, the service period can be extended for 1 more year until to the upper limit of 3 years.


For working grey scale

* When the scale not in used, they must be kept in the dark cabinet.

1.
One converting from control to working grey scale or newly received from purchasing, the colour difference at grey 4 will be measured by spectrophotometer as initial difference value.
2.
After 6 months of service, the colour difference of working was visually compared against the control.
If there is visual difference such as colour difference or staining or marking, then dispose and change the new working grey scale;
3.
If no visual difference, the spectrophotometer grey value (A05) for grey scale 4 of working grey scale is compared against the spectrophotometer grey value for grey 4 of control grey scale at setting of D65 light, 10 deg observer.
If the difference less than 0.25, the service period of working scale can be extended for 6 more months until the upper limit of 2 years.

ppeclothing

是不是用测色配色仪啊

梧桐落

应该是的．谢谢分享．

品质管理

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caohui

有没有高人，把楼主那段话再翻译一下啊
这个核查真的挺管用的

yuanyuanaibibi

我们没有测色配色仪怎么办

garin.zhu

英文不是很好，不过资料是好资料。收下慢慢研究。

iamjwl

英文的，有中文就好了

昨夜長風

可是測色儀也不能准確測量色卡呀

梗泛萍飘

原帖由 caohui 于 2009-7-8 21:37:00 发表
有没有高人，把楼主那段话再翻译一下啊
这个核查真的挺管用的

jgyghigh

测色仪看哦·~不过测色仪你不可能看到灰卡上的每个点~所以还是要人工在D65下作个观察和比对~