Product Introduction

Yinzong Sweat Tester

Function: Temperature of 55 ℃± 5 ℃, after 8 hours ± 30 minutes, check whether there are spots or color changes in the eyeglass frame sample
Compliant with standard: QB/T 14214-2003
checking the spot or color changing of the frame sample at temperature of 55℃±5℃ after the duration of 8±0.5 hours.

Compliant with standard: GB/T 14214-2003- Article 9.7
ISO 12870-2009- Article 8.3
ISO 12311:2013- Article 9.10
Testing method:
At a temperature of 55 ℃± 5 ℃, after 8 hours ± 30 minutes, check whether there are spots or color changes in the eyeglass frame sample.
Technical parameters:
1. Test temperature: 55 ± 5 ℃
2. Cover glass dish: diameter 220 ± 20 mm, height 100 ± 10 mm
3. PE material eyeglass holder
4. Equipped with an overheat circuit breaker
Machine size: 30 x 30 x 33 cm (length x width x height)
Machine weight: 11 kg
Voltage: 220V/60 (50) Hz

Yinzong Sweat Tester

Customer provided:
1. Chemical sweat material:
a. Lactic acid: ρ=1.21 g/mL, purity>85%
b. Sodium chloride (analytical reagent purity 99%)
c. Water: pH=5.0~7.5 (25 ℃), conductivity of 0.5 mS/m (25 ℃)
d. Capacity bottle: 1L
2. Modulation method: Weigh (50 ± 0.1) g of lactic acid and (100 ± 0.1) g of sodium chloride, pour them into a volumetric flask containing 1L of water, stir evenly, and the resulting mixture is 1L of chemical sweat.