Environmental Supply Company logo
Environmental Supply
Inc. / Est. 1995

EPA
Method 5.
And every
method after.

Environmental Supply Company, Inc. manufactures source-testing equipment built to fulfill the US EPA Stationary Source Testing Methods. 381 products across four families, engineered in Durham, North Carolina and relied on by source-testing professionals worldwide.

Catalog Search by methodRequest quote
Spec / Top product
BDXX Tedlar Bag with Dual Valve
SKU
BDXX
Description
Tedlar Bag with Dual Valve
Method
M18
Stock
Ready to ship
OPEN PRODUCT RECORD
381 PRODUCTS●SHIPPED WORLDWIDE●SINCE 1995●M5 / M6 / M7 / M17 / M18 / M23 / M26 / M201A / M202 / M30B / VOST●DURHAM NC · USA●ENVIRONSUPPLY.COM●381 PRODUCTS●SHIPPED WORLDWIDE●SINCE 1995●M5 / M6 / M7 / M17 / M18 / M23 / M26 / M201A / M202 / M30B / VOST●DURHAM NC · USA●ENVIRONSUPPLY.COM●381 PRODUCTS●SHIPPED WORLDWIDE●SINCE 1995●M5 / M6 / M7 / M17 / M18 / M23 / M26 / M201A / M202 / M30B / VOST●DURHAM NC · USA●ENVIRONSUPPLY.COM●381 PRODUCTS●SHIPPED WORLDWIDE●SINCE 1995●M5 / M6 / M7 / M17 / M18 / M23 / M26 / M201A / M202 / M30B / VOST●DURHAM NC · USA●ENVIRONSUPPLY.COM●381 PRODUCTS●SHIPPED WORLDWIDE●SINCE 1995●M5 / M6 / M7 / M17 / M18 / M23 / M26 / M201A / M202 / M30B / VOST●DURHAM NC · USA●ENVIRONSUPPLY.COM●381 PRODUCTS●SHIPPED WORLDWIDE●SINCE 1995●M5 / M6 / M7 / M17 / M18 / M23 / M26 / M201A / M202 / M30B / VOST●DURHAM NC · USA●ENVIRONSUPPLY.COM●

Three ways to find equipment.

01 / Primary

Search by EPA Method.

Every product in the catalog is cross-referenced to the EPA methods it serves. Start from your regulation, arrive at your equipment list. Procedure notes, cross-reference, tech sheets.

Traverse Points
M1
Velocity
M2 · 2F
Particulate Matter
M5
Sulfur Dioxide
M6
Nitrogen Oxides
M7
In-Stack PM
M17
Organics / Bag
M18
Dioxins · Furans
M23
Hydrogen Chloride
M26
PM10 · PM2.5
M201A
Condensable PM
M202
Mercury
M30B
02 / By product family

Four hubs, 381 products.

Isokinetic266Gas53Flow Measurement34Mercury28
03 / Type a SKU

Know the part?

MATCHES → C-5000 · C-5000-COK · C-5100 · C-5100-M

Products
381
Families
4
Years
31
EPA Methods
18

Most-requested equipment.

Tedlar Bag, Dual Valve
01 / BD(XX) / M18
Tedlar Bag, Dual Valve
C-5000 Console
02 / C-5000 / M5
C-5000 Console
Heated Sampling Line
03 / HH-8-K / Gas
Heated Sampling Line
Split Umbilical
04 / UC Split / M5
Split Umbilical
Heated Sampling Line
05 / HH-6/4-K / Gas
Heated Sampling Line
Bag Sampling System
06 / BSS-010 / M18
Bag Sampling System
View all 381 products

Engineering & service.

01

Calibration

Wind-tunnel and Pitot calibration certified to EPA Method 2F.

02

Design

Custom equipment and systems built to your specification.

03

Engineering

Source-testing equipment that meets the US EPA methods.

Resources & references.

01
EPA Methods
Every method we serve, linked to the EPA source.
REFERENCE
02
Manuals & Tech Sheets
Equipment documentation. Email us for your model.
DOCS
03
FAQ
Account setup, shipping, payments, returns, warranty.
SUPPORT
04
Links & Resources
EPA, CFR test methods, and training partners.
LINKS

International distributors.

ESC ships worldwide. These 11 countries have an authorized ESC distributor on the ground.

01
United States
HQ
02
Canada
03
Mexico
04
Australia
05
China
06
Israel
07
Saudi Arabia
08
South Africa
09
Taiwan
10
Thailand
11
Turkey