Basic Photography Course

Add 3 ounces of 99.5 glacial acetic acid to 8 ounces of
water to obtain 11 ounces of a 28 percent solution of
acetic acid.

temperatures upon contact with organic materials and
other chemicals.

CHEMICAL SAFETY

PRECAUTIONS

Some of the chemicals used in photography are skin

irritants, and others can cause serious injuries.
Chemicals should be regarded as poisons and handled
with caution. Before handling or working with

photographic chemicals, you should become familiar

with the safety precautions contained in Navy
Occupational Safety and Health (NAVOSH) Program

Manual for Forces Afloat, OPNAVINST 5100.19
series, volume I (chapters B3 and B12) and volume II

(chapters C1, C9, and C23), Navy Occupational Safety
and Health (NAVOSH) Program Manual,
OPNAVINST 5100.23 series (chapters 15, 20, and app.

15), and Safety Precautions for Photographic

Personnel, NAVAIR 10-1-764.

There are several safety items that must be worn

when mixing chemicals. They are as follows:

Face shield or goggles-Protects the eyes from
caustic chemicals.

Plastic or rubber apron-Reduces the chance of
chemical contamination of clothing.

Rubber gloves-Protects the hands and lower
arms. Gloves should extend up to the elbows.

Because of the danger of contaminating your

fingers, all precautions concerning poisons should be
observed when you are mixing photographic solutions.

Ingestion of a poisonous chemical is commonly

induced by hands that are contaminated with a toxic
chemical. You should adhere to the precautions
published for photographic chemicals to avoid contact
or ingestion of poisonous or corrosive chemicals.
Regardless of the antidote given to anyone that has been
accidentally exposed to or has swallowed a poisonous
or corrosive chemical, the antidote is for EMERGENCY
USE ONLY. The affected person should report to the
MEDICAL DEPARTMENT IMMEDIATELY.

Respirators-Used to prevent the inhalation of
fumes or chemical dust. The correct cartridge
must be used for the type of chemical being
mixed as described in Navy Occupational Safety
and Health (NAVOSH) Program Manual,

OPNAVINST 5100.23 series (app. 15).
Respirators must be cleaned and sanitized with
alcohol and placed in an airtight bag after each
use.

Long sleeve shirt-Used to protect the arms.

ACIDS AND ALKALIES

There are many types of acids and alkalies used in

photography. In general, acids and alkalies are similar
in their injurious properties in that either may cause the

following:

The majority of photographic chemicals cause the

skin to dry out due to the removal of natural skin oils.
Some types of chemistry have an accumulative nature.
This is when some of the chemicals are being absorbed

into the skin layers during each exposure to the
chemistry. The chemistry then replaces some of the
natural oils that lubricate the skin. Over an extended
period of time, which varies for different people,
accumulation could result in a total breakdown of the
ability of the skin to produce natural fats and lubricating

oils. Extreme conditions can result in contact dermatitis.

Metol (developing agent) poisoning can be a result of
accumulation poisoning.

Corrosion (chemical burn) by direct contact with

the skin or eyes or indirectly through the clothing.

Certain precautions must be observed in areas

where acids and strong alkalies are handled. These
precautions are as follows:

Intoxication or suffocation by inhalation of their

fumes. The fumes of some compounds are toxic or

poisonous, while others displace air, thereby producing
a suffocating atmosphere.

Poisoning when taken internally.

Warning signs and labels-Signs should be posted

in the chemical mixing area, warning personnel of the
principal hazards of the chemical being used. All
containers must be properly identified with hazardous
material labels.

Fire and explosion because of their instability

Showers and eyewash stations-Showers and

under adverse storage conditions. Also, some acids are

eyewash stations must be provided near all chemical

strong oxidizing agents that can generate ignition

mixing areas.

9-10

contents

Basic Photography Course

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DOFMaster for Windows On-line Depth of Field Calculator DOFMaster for Mobile Devices On-line Depth of Field Table Hyperfocal Distance Chart Articles FAQ Recommended Books Support Contact Links Home As an Amazon Associate I earn from qualifying purchases.	contents <- previous page next page -> Add 3 ounces of 99.5 glacial acetic acid to 8 ounces of water to obtain 11 ounces of a 28 percent solution of acetic acid. temperatures upon contact with organic materials and other chemicals. CHEMICAL SAFETY PRECAUTIONS Some of the chemicals used in photography are skin irritants, and others can cause serious injuries. Chemicals should be regarded as poisons and handled with caution. Before handling or working with photographic chemicals, you should become familiar with the safety precautions contained in Navy Occupational Safety and Health (NAVOSH) Program Manual for Forces Afloat, OPNAVINST 5100.19 series, volume I (chapters B3 and B12) and volume II (chapters C1, C9, and C23), Navy Occupational Safety and Health (NAVOSH) Program Manual, OPNAVINST 5100.23 series (chapters 15, 20, and app. 15), and Safety Precautions for Photographic Personnel, NAVAIR 10-1-764. There are several safety items that must be worn when mixing chemicals. They are as follows: 1. 2. 3. 4. 5. Face shield or goggles-Protects the eyes from caustic chemicals. Plastic or rubber apron-Reduces the chance of chemical contamination of clothing. Rubber gloves-Protects the hands and lower arms. Gloves should extend up to the elbows. Because of the danger of contaminating your fingers, all precautions concerning poisons should be observed when you are mixing photographic solutions. Ingestion of a poisonous chemical is commonly induced by hands that are contaminated with a toxic chemical. You should adhere to the precautions published for photographic chemicals to avoid contact or ingestion of poisonous or corrosive chemicals. Regardless of the antidote given to anyone that has been accidentally exposed to or has swallowed a poisonous or corrosive chemical, the antidote is for EMERGENCY USE ONLY. The affected person should report to the MEDICAL DEPARTMENT IMMEDIATELY. Respirators-Used to prevent the inhalation of fumes or chemical dust. The correct cartridge must be used for the type of chemical being mixed as described in Navy Occupational Safety and Health (NAVOSH) Program Manual, OPNAVINST 5100.23 series (app. 15). Respirators must be cleaned and sanitized with alcohol and placed in an airtight bag after each use. Long sleeve shirt-Used to protect the arms. ACIDS AND ALKALIES There are many types of acids and alkalies used in photography. In general, acids and alkalies are similar in their injurious properties in that either may cause the following: The majority of photographic chemicals cause the skin to dry out due to the removal of natural skin oils. Some types of chemistry have an accumulative nature. This is when some of the chemicals are being absorbed into the skin layers during each exposure to the chemistry. The chemistry then replaces some of the natural oils that lubricate the skin. Over an extended period of time, which varies for different people, accumulation could result in a total breakdown of the ability of the skin to produce natural fats and lubricating oils. Extreme conditions can result in contact dermatitis. Metol (developing agent) poisoning can be a result of accumulation poisoning. Corrosion (chemical burn) by direct contact with the skin or eyes or indirectly through the clothing. Certain precautions must be observed in areas where acids and strong alkalies are handled. These precautions are as follows: Intoxication or suffocation by inhalation of their fumes. The fumes of some compounds are toxic or poisonous, while others displace air, thereby producing a suffocating atmosphere. Poisoning when taken internally. Warning signs and labels-Signs should be posted in the chemical mixing area, warning personnel of the principal hazards of the chemical being used. All containers must be properly identified with hazardous material labels. Fire and explosion because of their instability Showers and eyewash stations-Showers and under adverse storage conditions. Also, some acids are eyewash stations must be provided near all chemical strong oxidizing agents that can generate ignition mixing areas. 9-10 contents Basic Photography Course <- previous page next page ->	As an Amazon Associate I earn from qualifying purchases.
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