Walton-Beckett測微尺,具有直徑100μm圓形視野面(面積約0.00785mm2),在顯微鏡下能測量石棉纖維的長度和寬度,以Walton-Beckett測微尺投射在載玻片之影像范圍及長度作為計數之依據。

A規則使用G-22型,B規則使用G-24型,計數板視野是依個別位相差顯微鏡制作而成,一般與鏡臺測微尺PS12和HSE/NPL檢測玻片配套使用。
Walton-Beckett測微尺屬于目鏡測微尺,選擇時需要根據自己顯微鏡目鏡筒的限制來選,一般提供的直徑有16mm,19mm,20.4mm,21mm,23mm,24mm,24.5mm,25mm,26mm,27mm.
型號 | 產品描述 | 包裝 |
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 |