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| Brand | Diffusion |
|---|---|
| Origin | United Kingdom |
| Model | M57D |
| Type | Manual Benchtop Instrument |
| Haze Range | 0–30% |
| Total Transmittance Range | 0–100% |
| Haze Repeatability | ±0.1% |
| Transmittance Repeatability | ±0.1% |
| Optical Geometry | 0° Illumination / Diffuse Viewing (Compliant with ASTM D1003 and BS 2782) |
| Spectral Response | CIE Illuminant A & C |
| Sample Port Diameter | 22 mm |
| Transmission Aperture | 15 mm |
| Source–Detector Gap | 90 mm |
| Warm-up Time | 1 min |
| Zero Drift | <0.1 unit within 5 min after warm-up |
| Operating Temperature | 5–50 °C |
| Storage Temperature | −10–65 °C |
| Dimensions (H×W×D) | 200 × 530 × 240 mm |
| Weight | 12 kg |
| Shipping Weight | 14 kg |
| Optional Accessories | RS-232 Interface, Liquid Cell Holder, Taber Abrasion Adapter |
| Brand | Diffusion |
|---|---|
| Origin | UK |
| Model | EEL57D |
| Type | Automatic |
| Transmittance Range | 0–100% |
| Haze Repeatability | ±0.1% |
| Transmittance Repeatability | ±0.1% |
| Optical Geometry | 0°/diffuse |
| Compliance | ASTM D1003, BS 2782 |
| Spectral Response | CIE Illuminant A & C |
| Traceability | NPL (National Physical Laboratory, UK) |
| Sample Port Diameter (Transmission) | 22 mm |
| Illumination Port Diameter (Transmission) | 15 mm |
| Source–Detector Spacing | 90 mm |
| Warm-up Time | 1 min |
| Zero Drift | None |
| Full-Scale Drift | <0.1 unit within 5 min after warm-up |
| Operating Temperature | 5–50 °C |
| Storage Temperature | −10–65 °C |
| Power Supply | 110–230 VAC, 50–60 Hz |
| Dimensions (H×W×D) | 200 × 530 × 240 mm |
| Weight | 12 kg |
| Shipping Weight | 14 kg |
| Brand | Diffusion |
|---|---|
| Origin | United Kingdom |
| Model | EEL 57D |
| Type | Automatic |
| Transmittance Range | 0–100% |
| Haze Repeatability | ±0.1% |
| Transmittance Repeatability | ±0.1% |
| Optical Geometry | 0°/diffuse |
| Compliance | ASTM D1003, BS 2782 |
| Traceability | NPL (National Physical Laboratory, UK) |
| Spectral Response | CIE Illuminant A and C |
| Preheat Time | 1 min |
| Zero Drift | None |
| Full-Scale Drift | <0.1 units within 5 min after warm-up |
| Operating Temperature | 5–50 °C |
| Storage Temperature | −10–65 °C |
| Power Supply | 110–230 VAC, 50–60 Hz |
| Dimensions (H×W×D) | 200 × 530 × 240 mm |
| Weight | 12 kg |
| Shipping Weight | 14 kg |
| Sample Port Diameter (Transmission) | 22 mm |
| Illumination Port Diameter (Transmission) | 15 mm |
| Source–Detector Spacing | 90 mm |
| Brand | BYK |
|---|---|
| Origin | Germany |
| Model | A-4430 |
| Measurement Angles | 20° / 60° / 85° |
| Geometry | Single-beam, fixed-angle reflectance |
| Measurement Area | 9 mm × 18 mm (60°), 9 mm × 9 mm (20°), 7 mm × 72 mm (85°) |
| Gloss Unit (GU) Range | 20°: 0–2000 GU |
| 60° | 0–1000 GU |
| 85° | 0–160 GU |
| Repeatability | ±0.5 GU (0–99.9 GU), ±0.2% (100–2000 GU) |
| Reproducibility | ±1 GU (0–99.9 GU), ±0.5% (100–2000 GU) |
| Light Source | Tungsten filament lamp (2.5 V / 60 mA) |
| Detector | Silicon photodiode |
| Data Storage | 999 readings across 50 user-defined groups |
| Interface | RS232 |
| Compliance | ISO 2813, ASTM D523, DIN 67530, JIS Z 8741, BS 3900-D5 |
| Traceability | Calibrated against BAM (Bundesanstalt für Materialforschung und -prüfung) and NRC (National Research Council Canada) reference standards |
| Power | One AA alkaline battery (up to 10,000 measurements) |
| Dimensions | 55 × 148 × 72 mm |
| Weight | 500 g |
| Enclosure | Impact-resistant polymer housing with integrated calibration base |
| Brand | Diffusion |
|---|---|
| Origin | United Kingdom |
| Model | EEL-57D |
| Type | Automatic |
| Transmittance Range | 0–100% |
| Haze Repeatability | ±0.1 units |
| Transmittance Repeatability | ±0.1 units |
| Optical Geometry | 0°/diffuse |
| Compliance | ASTM D1003, BS 2782 |
| Calibration Traceability | NPL (National Physical Laboratory, UK) |
| Spectral Response | CIE Illuminant A and C |
| Sample Port Diameter (Transmittance) | 22 mm |
| Illumination Port Diameter | 15 mm |
| Source–Detector Spacing | 90 mm |
| Warm-up Time | 1 min |
| Zero Drift | None |
| Full-Scale Drift | <0.1 units within 5 min after warm-up |
| Operating Temperature | 5–50 °C |
| Storage Temperature | −10–65 °C |
| Power Supply | 110–230 VAC, 50–60 Hz |
| Dimensions (H×W×D) | 200 × 530 × 240 mm |
| Weight | 12 kg |
| Shipping Weight | 14 kg |
| Optional Accessories | Cuvette holder for liquid haze/transmittance measurement |
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