RUBERT SA 2.5 SAND & SHOT BLASTING SURFACE COMPARATOR
The RUBERT No. 017 Shot-Blasting Comparator is designed for checking the surface roughness/profile of steel surfaces after shot blasting before painting or coating. RUBERT states that its No. 017 and No. 018 comparators are designed for surfaces blast-cleaned to Sa 2½ and Sa 3 and conform to ISO 8503.
Technical Specification
Parameter Specification
Product Name SA 2.5 Sand & Shot Blasting Surface Comparator
Brand RUBERT
Origin England / UK
Type Surface Roughness / Blast Profile Comparator
Comparator Material Precision Nickel Comparator Plate
Application Shot blasting / blast-cleaned steel surface
Surface Profile Dimpled profile for shot blasting
Cleaning Grades Sa 2½ and Sa 3
Profile Segments 4 reference sections
Segment 1 25 µm
Segment 2 40 µm
Segment 3 70 µm
Segment 4 100 µm
Profile Classification Fine / Medium / Coarse
Standard ISO 8503
Measurement Method Visual and tactile comparison
Typical Use Surface preparation inspection before painting/coating
Packaging Protective case/wallet
The four shot-blast reference profiles are 25, 40, 70 and 100 µm. Independent product documentation identifies the comparator as conforming to ISO 8503-1, ISO 8503-2 and ASTM D4417.
Fine / Medium / Coarse Classification
Fine: 25 to <40 µm
Medium: 40 to <70 µm
Coarse: 70 to <100 µm
This comparator is intended for comparison of blast profile, rather than replacing an instrument-based quantitative roughness measurement.
RUBERT Item No.: 017 — Shot Blasting Comparator
RUBERT Item No.: 018 — Grit/Sand Blasting Comparator
The RUBERT No. 017 Shot-Blasting Comparator is designed for checking the surface roughness/profile of steel surfaces after shot blasting before painting or coating. RUBERT states that its No. 017 and No. 018 comparators are designed for surfaces blast-cleaned to Sa 2½ and Sa 3 and conform to ISO 8503.
Technical Specification
Parameter Specification
Product Name SA 2.5 Sand & Shot Blasting Surface Comparator
Brand RUBERT
Origin England / UK
Type Surface Roughness / Blast Profile Comparator
Comparator Material Precision Nickel Comparator Plate
Application Shot blasting / blast-cleaned steel surface
Surface Profile Dimpled profile for shot blasting
Cleaning Grades Sa 2½ and Sa 3
Profile Segments 4 reference sections
Segment 1 25 µm
Segment 2 40 µm
Segment 3 70 µm
Segment 4 100 µm
Profile Classification Fine / Medium / Coarse
Standard ISO 8503
Measurement Method Visual and tactile comparison
Typical Use Surface preparation inspection before painting/coating
Packaging Protective case/wallet
The four shot-blast reference profiles are 25, 40, 70 and 100 µm. Independent product documentation identifies the comparator as conforming to ISO 8503-1, ISO 8503-2 and ASTM D4417.
Fine / Medium / Coarse Classification
Fine: 25 to <40 µm
Medium: 40 to <70 µm
Coarse: 70 to <100 µm
This comparator is intended for comparison of blast profile, rather than replacing an instrument-based quantitative roughness measurement.
RUBERT Item No.: 017 — Shot Blasting Comparator
RUBERT Item No.: 018 — Grit/Sand Blasting Comparator
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