Is CLX-XT2 Dry Reagent 09994 the Same as 09952?
Updated
Do not assume they are interchangeable. The CLX-XT2 engineering specification lists 09994 as its dry annual-supply reagent and 09991 as its liquid option. A dry or J.A.W. label alone does not establish an alternative reference.
Request BWTS spare parts, annual calibration or ballast-water testing

Key takeaways
- The XT2 table identifies 09994 as its dry reference.
- A shared dry format is not evidence of interchangeability.
- Obtain a written, reference-specific substitution basis.
- Review preparation capability as well as shipping format.
- Purchasing standardisation cannot replace technical approval.
- Resolve the proposed substitution before fitting it.
Read the model-specific reagent table
The XT2 specification explicitly names 09991 liquid and 09994 dry reagent, with supply duration based on estimated BWTS cycles.
It does not establish that another dry reference is equivalent. Record the instrument nameplate and the reference in its current consumables documentation before issuing a purchase order.
Distinguish format from compatibility
Dry describes a physical supply format, not the complete chemical and installation specification.
Bottle sizes, preparation quantities, supported instruments and replacement schedules need their own evidence. A common DPD measurement principle does not establish that different kits can be exchanged without an instrument-specific compatibility statement.
Ask what the alternative actually replaces
A substitution proposal should identify the original reference, the alternative reference, installed model and supporting manufacturer documentation.
Separate a complete annual pack from an individual refill or shorter-duration kit. A purchasing system that removes leading zeroes or truncates suffixes can obscure the very distinction needed for review.
Include the XT2 identity and proposed dry reference; do not order a generic J.A.W. description as a confirmed substitute. Request a reference-specific TRO reagent comparison
Plan preparation and onboard facilities
For a dry option, establish required preparation water, containers, mixing instructions and crew readiness before selecting it.
Do not infer preparation from the liquid XT manual. Any handling advantage must be considered alongside the ability to prepare the correct concentration consistently and label the activated reagent on board.
Keep the existing system basis
Reagent selection must remain aligned with the installed analyser and the vessel's applicable BWMS documents.
Standardising a fleet's purchasing description is not permission to change measurement chemistry, replacement limits or protective functions. Where the reference differs from the manual, obtain clarification before installing it.
Coordinate an unresolved substitution
Send the proposed reference, manufacturer, label images, specification and installed instrument identity for review.
Sea Clean can coordinate consumables and technical work across EC systems, with Headway authorisation distinct from independent work on other makes. Component compatibility and delivery arrangements remain specific to the enquiry.
Where documents disagree, include the current manual and proposed supplier specification before installation. Resolve CLX reagent substitution with technical review
Frequently asked questions
Which dry reference does the cited XT2 sheet list?
It lists 09994 for the dry reagent annual-supply option.
Does J.A.W. identify one universal CLX reagent?
No. The preparation format does not identify every model, pack or compatible reference.
Can a liquid XT manual define XT2 dry mixing?
Use the instructions for the supplied dry formulation and installed model instead.
What evidence is needed for another dry reference?
A documented compatibility and substitution basis naming both references and the actual instrument.
Sources
- HF scientific CLX-XT operation and maintenance manual, revision 5.0 — The XT manual establishes why formulation instructions are specific; the XT2 sheet below supplies the 09994/09991 references.
- HF scientific CLX-XT2 engineering specification
Related articles
- Why Should TRO Reagent Orders Identify the Analyser, Not Just the BWTS Brand?
- What Should a Vessel Check When a TRO Reagent Delivery Arrives?
- Why Does a CLX Liquid Indicator Still Need DPD Activation?
- Does a CLX 09991 Annual Pack Mean One Bottle Lasts a Year?
- Can Free-Chlorine DPD Reagent Replace a Total-Chlorine CLX Set?
- What Is a Ballast Water Treatment System? Explained
Request spares, calibration or ballast-water testing
Include BWMS brand/model, vessel/IMO number, port/terminal, date/ETA and scope or part numbers. These links prepare an email draft; you must send it yourself.
- Request a parts quote — Sensors, TRO reagents, calibration kits and replacement parts. Confirm compatibility, availability and delivery for your installed system.
- Request a calibration booking — Annual instrument calibration with a calibration certificate for the work completed. OEM instructions, drift or applicable rules may require earlier work.
- Request testing coordination — Arrange sampling and testing with an appropriately qualified party for your IMO D-2, commissioning or other stated purpose.
Authorised Headway agent. Other-brand enquiries are independently reviewed; no OEM authorisation is claimed. Sea Clean is not an accredited laboratory or approving authority. Calibration does not demonstrate biological D-2 compliance. Attendance, testing scope and parts delivery are confirmed per enquiry.