Walton-Beckett测微尺，具有直径100μm圆形视野面(面积约0.00785mm2)，在显微镜下能测量石棉纤维的长度和宽度，以Walton-Beckett测微尺投射在载玻片之影像范围及长度作为计数之依据。
A规则使用G-22型，B规则使用G-24型，计数板视野是依个别位相差显微镜制作而成，一般与镜台测微尺PS12和HSE/NPL检测玻片配套使用。
Walton-Beckett测微尺属于目镜测微尺，选择时需要根据自己显微镜目镜筒的限制来选，一般提供的直径有16mm,19mm,20.4mm,21mm,23mm,24mm,24.5mm,25mm,26mm,27mm.
|
型号 |
产品描述 |
包装 |
|
G22 |
Eyepiece Reticle with Walton/Beckett for Asbestos 3-1 Ratio. All with calibration factor of 4 for use with 40x objectives. |
1 |
|
G24 |
Eyepiece Reticle with Walton/Beckett for Asbestos 5-1 Ratio , All with calibration factor of 4 for use with 40x objectives |
1 |
|
G25 |
Eyepiece Reticle with Walton/Beckett (1996) for Asbestos. All with calibration factor of 4 for use with 40x objectives. |
1 |
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