1. OSHC Consultancy Project
Report 7
Part 1
OSHC Consultancy Project
3 Aug, 2012
Guo Yueping, Jackie

2. Field study

3. Construction site and workers’ existing clothing

4. Uniform provided by company
T-shirt
No trousers

5. Samples of uniform provided by Sun Hung Kai

6. Environmental data

12. Collection of questionnaires and physiological data
Date: 1 August 2012
Field study site: Yuen Long CDA15
Subjects: 12 construction workers
Title of questionnaire: 酷熱天氣下個人冷卻設備預防工人中暑的效力研究
Collection: 12 sets of data

13. Procedure of clean the vests and ice pads

14. Part 2
Anti heat stress clothing for construction workers in hot and humid weather

15. Collection of questionnaires
Date: 1 August 2012
Field study site: Yuen Long CDA15
Subjects: construction workers including engineer and site officer, total 14 workers
Title of questionnaire: 建築工人工作服的防護性能、穿著方便和舒適度的問卷調查
Collection: 14 nos. feedback

16. Objective measurement -basic characters (1)
1. Weight (g/100 cm2)
Experimental procedure
i) cut 10 pieces of rounded fabric, each piece is 100 cm2
ii) measure the weight of each piece
Tool: Circular Cutter (Schroder GSM); Electronic scale (Smart Grid, METTLER TOLEDO)

20. Objective measurement -basic characters (2)
2. Thickness (mm)
Experimental procedure
i) select a piece of flat fabric, about 10×10 cm2;
ii) measure the thickness on 10 different places of that piece of fabric
Tool: Thickness apparatus (AMES-SDL).

24. Objective measurement -basic characters (3)
Air permeability
Experimental procedure
i) cut 10 pieces of rounded fabric, each piece is 100 cm2
ii) measure 10 times of air permeability
Equipment: Automatic Air-permeability Tester (KES-f8-AP1, KATO TECH CO.LTD)

27. * The “gray, KT 12703#20” is extremely impermeable because the equipment cannot measure it.