SRIS is the legacy standard designation used for the Society of Rubber Industry, Japan Standard. These references are most often encountered in rubber, sponge, foam-rubber, and other soft-material test requirements, especially in older Japanese specifications and product documents.
For labs and buyers, SRIS usually points to a defined material-property workflow rather than a broad active catalog. The best-known example is SRIS 0101, which is commonly tied to soft-material hardness and related physical checks for expanded rubber and similar materials.
SRIS Standards
SRIS is a legacy Japanese standards group connected with rubber and elastomer materials. The designation was used for association standards published in the Japanese rubber field, and these documents still matter when older customer requirements or supplier records continue to cite them.
In current industrial practice, SRIS is most useful as a document-matching tool. When an SRIS number appears in a drawing, specification, or data sheet, it can affect which property is measured, which instrument type is appropriate, and how results should be reported.
Quick Definition
SRIS is a withdrawn Japanese association standards family for rubber-related materials and testing. Today, it is mainly important when legacy documents still reference a specific method such as SRIS 0101.
Why SRIS References Matter in Testing
Even though the SRIS family is no longer active, older product drawings, sponge specifications, and supplier data sheets still use these designations. That makes SRIS important for document matching, incoming inspection, legacy product support, and replacement-material approval.
In practical lab work, an SRIS callout can change which hardness scale, compression setup, or density procedure is expected. Checking the exact citation before testing helps avoid incorrect fixtures, mismatched measurement ranges, or reporting problems.
Common Materials or Application Areas Covered
SRIS references are most commonly encountered around rubber and soft-material evaluation. For currently visible legacy use, the clearest association is with expanded rubber, sponge rubber, foam-like materials, and soft elastomeric products.
- Expanded rubber
- Sponge rubber
- Foam rubber
- Soft elastomeric parts and cushioning materials
Relevant examples: Expanded rubber, sponge rubber, foam rubber, soft elastomeric components.
Common workflows: Incoming QC, cushioning comparison, material qualification, replacement-part verification.
Common equipment: Asker-type durometers, compression fixtures, balances, immersion-density accessories, conditioning ovens.
Common Test Types
The most dependable workflow mapping for SRIS in current buying and lab practice comes from SRIS 0101. That legacy method is associated with a cluster of physical-property checks used for expanded rubber and similar soft materials.
- Soft-material hardness testing
- Compression property checks
- Compression set testing
- Apparent density or specific gravity testing
- Water absorption testing
How to Read a SRIS Designation
SRIS references use the prefix SRIS followed by a four-digit document number. Older citations are often shown with a hyphenated year, such as SRIS 0101-1968.
Because SRIS is a legacy family, the safest approach is to match the exact number and any year shown in the customer requirement. Small differences in the cited designation may point to a different document or edition history.
Featured Standards / Methods / References
Only a narrow set of SRIS references can be mapped confidently to present-day equipment decisions without the full document in hand. The best-known example is below.
| Designation |
Testing focus |
Typical workflows |
Common equipment |
| SRIS 0101-1968 |
Physical testing of expanded rubber |
Soft-material hardness, apparent density or specific gravity, compression-related checks, and water-absorption support work |
Asker C durometers, compression fixtures, balances, immersion-density accessories, conditioning ovens |
When a legacy document cites SRIS 0101 without the year, it is still worth checking the underlying customer specification before selecting instruments or issuing reports.
Standards / Methods by Application Area
In current industrial use, SRIS is most likely to surface in older specifications for soft rubber and sponge materials rather than in new public standards development.
Soft sponge and foam materials: Most often tied to Asker C hardness language and related physical-property checks.
Cushioning and sealing products: Often relevant when legacy Japanese material requirements remain in drawings or procurement documents.
Supplier qualification and replacement materials: Useful when a buyer needs to match an older SRIS callout to a present-day lab setup and report format.
Equipment Commonly Used with These Standards / Methods / References
Equipment selection depends on the exact SRIS document cited, but a small group of instrument families appears repeatedly around SRIS 0101 and similar soft-material workflows.
| Equipment family |
Why relevant |
Common workflows |
Typical accessories |
| Asker C durometers |
Commonly connected with legacy SRIS 0101 hardness requirements for soft rubber and sponge materials |
Indentation hardness checks and comparative QC testing |
Test stands, timer-hold features, load checkers, indenter-height gauges |
| Compression fixtures and thickness tools |
Useful where expanded-rubber evaluations include compression-related properties |
Compression response and compression-set work |
Compression plates, spacers, thickness gauges, calipers |
| Balances and density accessories |
Needed for density-style measurements and immersion-based weighing steps |
Apparent density or specific gravity checks |
Precision balances, immersion kits, beakers, specimen cutters |
| Conditioning ovens and temperature-control equipment |
Supports repeatable specimen conditioning and temperature exposure in soft-material workflows |
Specimen conditioning and heat-exposure steps |
Laboratory ovens, racks, timers, temperature monitoring tools |
Related Standards Organizations or Related Frameworks
SRIS does not sit alone in the lab. In practice, buyers and test labs often compare or cross-check legacy SRIS callouts with active Japanese and international methods.
The Society of Rubber Science and Technology, Japan: Historical publisher of SRIS documents and the main source for background on the family.
JIS: Key national framework for current Japanese rubber and elastomer testing requirements.
ISO: Important for global rubber and elastomer testing programs, especially where Japanese and international specifications meet.
Talk to NextGen About SRIS Test Equipment
If you are working from an older SRIS callout, the safest path is to match the exact document reference to the property being measured and the specimen type involved.
NextGen can help map legacy SRIS requirements to practical hardness, compression, density, and specimen-conditioning equipment so your lab setup fits the material and reporting workflow.