STSC Personal Protective Equipment in Construction

Question 1

Under OSHA 29 CFR 1926.100, what ANSI standard governs the selection of hard hats (head protection) for construction workers?

Accepted Answer

ANSI Z89.1

Answer

ANSI Z87.1

Answer

ANSI Z41

Answer

ANSI Z359.1

Question 2

What does the ANSI Z87.1 standard designate, and what marking indicates that safety glasses provide impact protection?

Accepted Answer

Eye and face protection — the '+' symbol after the manufacturer mark indicates high impact rating

Answer

Hearing protection — the 'NRR' marking indicates impact rating

Answer

Respiratory protection — P100 filter marking indicates impact protection

Answer

Foot protection — ASTM F2413 marking indicates impact resistance

Question 3

A construction worker must select hearing protection for an area where the 8-hour time-weighted average (TWA) noise level is 95 dB(A). What is the minimum Noise Reduction Rating (NRR) of the hearing protection device needed?

Accepted Answer

NRR 25 or higher to reduce effective exposure to below 90 dB(A) using OSHA's derated calculation

Answer

NRR 5 — any rated device is sufficient

Answer

NRR 10 using OSHA's derating formula

Answer

NRR 30 with no derating required

Question 4

Under OSHA's foot protection standard (1926.96), what ASTM standard governs safety-toed footwear for construction workers?

Accepted Answer

ASTM F2413 — specifying impact and compression resistance for safety-toed footwear

Answer

ASTM E119 — fire resistance testing

Answer

ASTM D2240 — material hardness testing

Answer

ASTM G155 — UV exposure testing

Question 5

What is the key difference between an N95 filtering facepiece respirator and a P100 filtering facepiece respirator under NIOSH's 42 CFR Part 84?

Accepted Answer

N95 is not oil-resistant and filters 95% of particles; P100 is oil-proof and filters 99.97% of particles

Answer

N95 filters 99.97% of particles; P100 filters 95% of particles

Answer

N95 provides full-face protection; P100 is a half-face respirator

Answer

There is no difference — both provide equal protection for construction use

Question 6

An employer requires workers to wear cut-resistant gloves when using a utility knife. Which ANSI/ISEA standard defines cut resistance ratings for hand protection?

Accepted Answer

ANSI/ISEA 105 — Hand Protection

Answer

ANSI/ISEA 138 — Impact Protection

Answer

ANSI Z359.1 — Fall Protection

Answer

ASTM F1790 — Thermal Resistance