产品说明
一般描述
This Standard Reference Material (SRM) is intended for use as a primary standard in calibrating Knoop-type microhardness testers and is certified for mean Knoop hardness values at loads of 0.245 N, 0.490 N, and 0.980 N (0.025 kgf, 0.050 kgf, and 0.100 kgf, respectively). A unit of SRM 1893 consists of a square test block of electrodeposited bright copper on an AISI 1010 steel substrate. The test block measures 1.35 cm on each side, is approximately 1.5 mm thick, and is mounted in a thermosetting epoxy.
For more information, please refer to the SDS and COA.
SRM 1893_cert SRM 1893 _SDS
法律信息
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
基本信息
| NACRES | NA.24 |
产品性质
| 质量水平 | 100 |
| 等级 | certified reference material |
| 形式 | powder |
| 包装 | pkg of each |
| manufacturer/tradename | NIST® |
| application(s) | pharmaceutical (small molecule) |
安全信息
| 象形图 |   |
| 警示用语： | Danger |
| 危险声明 | H228 - H410 |
| 预防措施声明 | P210 - P240 - P241 - P273 - P280 - P370 + P378 |
| 危险分类 | Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 1 |
| 储存分类代码 | 4.1B - Flammable solid hazardous materials |
| WGK | WGK 3 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
Sigma-Aldrich
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