Viscosimeters, industrial process-type, manufacturing · California

Photo-Sonics, Inc.

Chatsworth, CA · ~63 workers · 8 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.6
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Photo-Sonics, Inc. runs at 140% of its industry's injury rate - more dangerous than the typical Viscosimeters, industrial process-type, manufacturing workplace, earning a grade D.

Photo-Sonics, Inc.: 4.6 TCR = 140% of Viscosimeters, industrial process-type, manufacturing BLS 3.3 · 8y Form 300A (see methodology below)

Photo-Sonics, Inc. safety composite

Photo-Sonics, Inc. scores strongest on dart rate (safer than 75% of same-industry peers) and weakest on total case rate (tcr) (safer than 5%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

D

41/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 4.61 per 100 workers

Safer than 5% of industry peers

DART rate
B 0 per 100 workers

Safer than 75% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−4.1

2017→2024

Photo-Sonics, Inc. injury rate improved

Photo-Sonics, Inc.'s TCR fell 4.1 from 4.1 in 2017 to 0.0 in 2024. Peak filing year was 2021 at 15.9 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2017=4.1 · 2018=3.2 · 2019=2.2 · 2020=0.0 · 2021=15.9 · 2022=3.2 · 2023=8.2 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 334513 · Chatsworth, CA ABOVE-IND · SMALL

Grade D · TCR 4.6 · 140% of ind

  • DART 0.0 DART
  • RANK #26/27
  • PHOTO Heraeus Electro-Nite…
  • BOOK 8y book
  • INJ 12 inj
  • SIZE ~63 FTE

Nearest TCR peer: Heraeus Electro-Nite Co., Peru, LLC (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

Photo-Sonics, Inc. in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Photo-Sonics, Inc. averages 4.6 TCR (140% of the Viscosimeters, industrial process-type, manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Photo-Sonics, Inc. TCR series: 2017=4.1 · 2018=3.2 · 2019=2.2 · 2020=0 · 2021=15.9 · 2022=3.2 · 2023=8.2 · 2024=0 · BLS 3.3

Where Photo-Sonics, Inc. falls in its industry

322 Viscosimeters, industrial proc establishments

Safer than 5% of graded establishments in this industry, whose median TCR is 1.3.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #26 safest of 27 Viscosimeters, industrial proc employers in California.

Photo-Sonics, Inc. (63 employees, TCR 4.6) among 29 same-industry peers, split at the industry median of 96 employees and a TCR of 1.3 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0200400600 02468 Average employees Total Case Rate Photo-Sonics, Inc.
Photo-Sonics, Inc. (63 employees, TCR 4.6) among 29 same-industry peers, split at the industry median of 96 employees and a TCR of 1.3

Photo-Sonics, Inc. has fewer employees than the Viscosimeters, industrial process-type, median and a higher injury rate than the industry's median TCR of 1.3. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 0.0 0.0 0 0 0
2023 8.2 6.9 5 1 0
2022 3.2 3.2 1 1 0
2021 15.9 15.9 3 7 0
2020 0.0 0.0 0 0 0
2019 2.2 2.2 1 0 0
2018 3.2 3.2 1 0 0
2017 4.1 4.1 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

334513 · CA · Chatsworth

322 Viscosimeters, industrial process-type, manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 132 employers in Chatsworth, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Heraeus Electro-Nite Co., Peru, LLC 4.6 TCR
NAICS-TCR Air Monitor Corporation 4.5 TCR
NAICS-TCR Florida 4.5 TCR
NAICS-TCR PROTECTION CONTROLS 4.5 TCR
STATE-SIZE VF - Lodi 63 FTE
STATE-SIZE Valley Ventures, Inc. 63 FTE
STATE-SIZE Goossen Farms Inc 63 FTE
STATE-SIZE NGW, LLC 63 FTE
CITY-NEAR Thibiant International 666 FTE
CITY-NEAR AMZL : DLA4 620 FTE
CITY-NEAR Noble House Home Furnishings 562 FTE
CITY-NEAR kdc/ one 540 FTE
NAT-TCR Cedar Rapids Ia Sales Center 4.6 TCR
NAT-TCR Ingram Barge Company Metropolis 4.6 TCR
NAT-TCR Embassy Suites by Hilton Tucson East 4.6 TCR
NAT-TCR Llebroc Industries LLC 4.6 TCR
NAT-SIZE Gawar - Warrenton 63 FTE
NAT-SIZE Iadap - Des Moines Airport 63 FTE
NAT-SIZE The Terrace at Priceville 63 FTE
NAT-SIZE Wapor - Port Angeles 63 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.