ASTM E617-97(2003)的发布历史信息,1.1 本规范涵盖实验室使用的重量和质量标准,特别是 0、1、2、3、4、5、6 和 7 级。本规范取代国家标准局通告 547 第 1 节,该标准已绝版。1.2 本规范规范进一步认识到国际建议 R111 的存在,它描述了 E1、E2、F1、F2、M1、M2 和 M3
class 2 may be used for quantities greater than 20 mg, class 3 for quantities of greater than 50 mg, and class 4 for quantities of greater than 100 mg. Weights should be calibrated periodically, preferably against an absolute standard weight. ...
标准号:ASTM E617-2013 中文标准名称:实验室砝码和精密质量标准用标准规范 英文标准名称:Standard Specification for Laboratory Weights and Precision Mass Standards 标准类型:N13 发布日期:1999/12/31 12:00:00 实施日期:1999/12/31 12:00:00 中国标准分类号:N13 ...
which is out of print. 1.2 This specification contains the principal physical char- acteristics and metrological requirements for weights that are used. 1.2.1 For the verification of weighing instruments; 1.2.2 For the calibration of weights of a lower class of accuracy; and 1.2.3 With weighi...
3.无间隙原子钢 interstitial free steels 无间隙原子钢是在 碳钢中加入适量的钛或铌,使钢中的碳、氮间隙原子完全被固定成碳、氮化物,钢中没有间隙原子存在的一类钢。 4.无间隙原子高强度钢 high strength interstitial free steels (Y) 通过控制钢中的化学成分来改善钢的塑性应变比(r值)和应变硬化指数(n值)。
Troemner Alloy 8 Stainless Steel Precision Weights are available in Troemner UltraClass and ANSI/ASTM E617 from Class 0 until 4. Troemner Alloy 8 Stainless Steel Precision Avoirdupois. This Weight weighs 0.001 lb. Weights are available in ANSI/ASTM E617
Troemner Alloy 8 Stainless Steel Precision Weights are available in Troemner UltraClass and ANSI/ASTM E617 from Class 0 until 4. Troemner Alloy 8 Stainless Steel Precision Avoirdupois. This Weight weighs 0.2 lb. Weights are available in ANSI/ASTM E617 C
ASTM C150-07的被谁引用信息,1.1 本规范涵盖八种硅酸盐水泥,如下(见注 2): 1.1.1 I 型 - 当不需要任何其他类型规定的特殊性能时使用。 1.1.2 IA 型 - 引气水泥与 I 型相同,需要加气。 1.1.3 II 型 - 一般用途,尤其是需要中等抗硫酸盐性或中等水化热时。 1.1.4 IIA
ASTM Standard E 617 has recently been revised, and a major revision of OIML R 111 is currently in process. The concept of conventional mass, which is essential to both standards, is discussed in detail. A known problem with this concept exists at higher altitudes (starting as low as 1000...
ASTM D4740是一种测试方法,用于评估残渣燃料油的清洁度和兼容性。该方法适用于100℃时粘度达50CST的残渣燃料油。测试方法包括将预热并充分混合的样品滴在测试纸上,然后在100℃的烤箱中放置1小时后,将测试纸从烤箱中移出,观察并判断固体悬浮物的情况,以此来评估燃料的...