I. Field Survey Work
Nature of Survey Work
(B) DUST MONITORING
Asbestos
Cadmium hydroxide Cotton
Fibre-glass
Lead
Nuisance
Quartz
Wood
Zinc
(C) VENTILATION STUDY
General ventilation Local exhaust
(D) PHYSICAL HAZARD STUDY
TABLE 41 (Cont'd)
TABLE 41 (Cont'd)
II.
Laboratory Analysis Work
No. of Surveys
No. of Samples
Taken
Nature of Analysis Work
No. of Analyses
No. of Samples/ Specimens
Collected
(A) CHEMICAL ANALYSIS
1
90
1
6
བྷུཀ -ཤཱ྾སྤྲེ སི རྞ
15
27
124
238
1
48
2
15
བྷཱཝཱ ས གཱཧྨ ཡ
220
Acid mist
(24)
(24)
Asbestos
(75)
(75)
Benzene
(11)
(11)
Chromium
(17)
1
(17)
Gas
(10)
(10)
Lead other metal
(36)
(36)
Major component (solid sample)
(2)
(2)
1
Metal component
(10)
(10)
Miscellaneous
(5)
(5)
Mixed solvents (bulk)
(185)
(170)
Mixed solvents (charcoal tubes)
(122)
(122)
Oil mist
(31)
(31)
Other analysis (e.g. Das, pH,
(42)
(38)
299 376
334
4 etc)
508
Quartz
(275)
(250)
Solvent
(2)
Sulphuric acid mist
20
TDI
(6)
(2)
(6)
Welding fumes
(15)
(15)
Zinc
3
5
Laser
1
$
UV
8
3
RF
15
20
General lighting
$
20
Thermal environment
12
19
Total
1 603
2 232
(B) PHYSICAL ANALYSIS
Asbestos analysis
Asbestos (counting) Cotton dust
Fibre-glass
Metal (weighing of filter) Mineral dust
Nuisance dust Quartz analysis Respirable dust
(C) BLOOD CHEMISTRY
3
1
222
ནྡྷསྶབཱིཙྪཱཧྨསཙྪཱ
213
10
10
4
4
10
10
30
(10)
3D
(10)
2
2
6
86
83
Blood lead
1
tre
(5)
Blood heavy metal
1
(D) URINALYSIS
Glucose
Lead Protein
396
396
(5)
(5)
354
354
Total
I 137 (888)
1 125
(844)
Note: Figures in brackets were analyses/samples/speciaens being
referred to the Government Laboratory for chemical analysis.