美国Rex Gauge 1700-SP硬度计
Max-Hａnd 硬度计
现有ASTM类型：A, D, B, C, DO, E, and O
尺寸：2.25" x 6.125"H
重量：6 oz
特征：
包含NIST标准鉴定证书
符合ASTM D-2240标准
一年质保
定做携带式仪器箱
重设之前一直手持
读取值和徐变
Description:
Introduced in 1965, the Model 1700 was designed to enable the user to observe and measure the "creep" present in a specimen. Creep refers to the tendency of the durometer indentor to continue to penetrate a specimen over time, giving lower durometer readings. For example, if the durometer is held against a specimen in full contact and with constant pressure, the durometer reading will decrease over a period of seconds after the initial reading is taken. So, in a specimen with creep, the initial reading may be 35.0 durometer points, while the reading after three seconds may be 33.5 durometer points. The Model 1700 features a max- hａnd and an active hａnd so that creep may be observed. The max hａnd holds the maximum reading while the active hａnd can be observed creeping down the scale. The 1700 is equipped with a max-hａnd reset button on the top left of the gauge.
| DUROMETER TYPES | APPLICATIONS | INDENTOR SHAPE | MAIN SPRING |
| TYPE A (ASTM D2240) | Soft rubber, plastics, and elastomers, printer's rolls. | Flat Cone Point 35° Included Angle | 822 GM 1.81 LB. |
| TYPE D (ASTM D2240) | Hard rubber and plastics such as thermo plastics, flooring and bowling balls. | Sharp Cone Point 30° Included Angle | 4536 GM 10.0 LB. |
| TYPE B (ASTM D2240) | Harder elastomers and plastics. Paper and fibrous materials, Use above 93 Duro A. | Sharp Cone Point 30° Included Angle | 822 GM 1.81 LB |
| TYPE C (ASTM D2240) | Medium hard elastomers and plastics. Also useful to avoid surface marks. | Flat Cone Point 35° Included Angle | 4536 GM 10.0 LB |
| TYPE DO (ASTM D2240) | Dense granular material, textile windings. | 3/32" Spherical | 4536 GM 10.0 LB |
| TYPE O (ASTM D2240) | Very soft elastomers, textile windings, soft granular materials. Use below 20 Duro A. | 3/32" Spherical | 822 GM 1.81 LB |
| TYPE OO (ASTM D2240) | Light foams, sponge rubber gels, animal tissue. | 3/32" Spherical | 113 GM |
| TYPE OOO (ASTM D2240) | Ultra soft gels and sponge rubber. | 1/2" Spherical | 113 GM |
| TYPE M (ASTM D2240) | Materials as thin as .050" | Sharp Cone Point 30° Included Angle | |
