Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
as per standard protocol
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as per standard protocol" is correct and usable in written English.
It is typically used to indicate that actions or procedures are being followed according to established guidelines or rules. Example: "The report was submitted as per standard protocol to ensure compliance with company policies."
✓ Grammatically correct
Science
Alternative expressions(13)
according to standard procedure
in accordance with standard guidelines
according to established procedure
as per standard procedures
as per standard histopathology
as per standard method
as per standard practice
as per standard procedure
following standard guidelines
as per standard methodology
as per institutional practice
as per current practice
as per usual practice
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
36 human-written examples
The aa1 267 FUS polypeptide was cloned into pGEX6P-1 vector as per standard protocol.
Science & Research
The test was done as per standard protocol.
Science
Patients undergoing coronary intervention remained hospitalised overnight for observation as per standard protocol.
Science
Total RNA was extracted from the transfected cells using TRIZOL reagent (Invitrogen, Carlsbad, CA) as per standard protocol.
Science
Transmitted light images were obtained after H&E staining as per standard protocol to visualize the morphology of the sections.
Science
The brains were removed and stored in 10% phosphate-buffered formalin and embedded in paraffin as per standard protocol [39].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
24 human-written examples
Collagen solution prepared as per standard protocols is treated with chromium III) oxide nanoparticules encapsulated within a polymeric matrix (polystyrene-block-polyacrylic acid copolymer).
UV vis measurements of compost extract in distilled water and alkali (10%% w/v) were used to calculate the E4/E6 ratio (absorbance at 465 nm over absorbance at 665 nm) and the E2/E3 ratio (absorbance at 250 nm over absorbance at 365 nm) as per standard protocols (Chen et al. 1977; Hautala et al. 2000; Thomsen et al. 2002).
All crosses were cultured as per standard protocols.
Science
Human micro vascular endothelial cells were cultured as per standard protocols established in our laboratory.
Science
NOD/SCID mice were prepared and transplanted as per standard protocols [11], [24], [25].
Science
Expert writing Tips
Best practice
When using "as per standard protocol", ensure that the protocol is clearly defined or easily accessible to your audience. This avoids ambiguity and ensures consistent interpretation.
Common error
Avoid using "as per standard protocol" to mask responsibility or avoid specifying who performed the action. Instead of saying "The test was done as per standard protocol", specify who conducted the test: "The technician conducted the test as per standard protocol."
Source & Trust
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as per standard protocol" functions as a prepositional phrase that modifies a verb or noun. According to Ludwig, it indicates that an action or procedure is performed according to established and accepted guidelines.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
In summary, "as per standard protocol" is a grammatically correct and very common prepositional phrase used to indicate adherence to established procedures. Ludwig AI analysis confirms that the phrase is primarily used in scientific and technical contexts to ensure clarity and reliability. While alternatives like ""according to standard procedure"" exist, "as per standard protocol" remains a widely accepted way to convey adherence to recognized methods. When using this phrase, ensure that the protocol is well-defined and easily accessible to avoid ambiguity. Avoid overusing passive voice to maintain clarity and accountability. Ludwig underlines the reliability and correctness of the phrase.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
according to established procedure
Replaces "as per" with "according to", emphasizing adherence to a defined process.
adhering to the standard protocol
Emphasizes the action of following or sticking to the procedure.
in line with standardized procedures
Uses "standardized procedures" to highlight uniformity and consistency.
in accordance with standard guidelines
Substitutes "protocol" with "guidelines", suggesting a more flexible approach within set boundaries.
complying with standard protocol
Highlights the compliance aspect of following the rules.
under the usual protocol
Slightly changes the prepositional structure but maintains the core meaning.
following the usual procedure
Uses simpler language, making it less formal than the original phrase.
consistent with the standard method
Focuses on using a specific and accepted method.
pursuant to standard protocol
A more formal and legalistic alternative to "as per".
as dictated by standard procedure
Implies a rigid adherence to the procedure, leaving little room for deviation.
FAQs
How can I use "as per standard protocol" in a sentence?
You can use "as per standard protocol" to indicate that a procedure was followed according to established guidelines. For example, "The samples were processed "as per standard protocol" to ensure accurate results."
What are some alternatives to "as per standard protocol"?
Alternatives include "according to standard procedure", "in accordance with standard guidelines", or "following the usual procedure". The best choice depends on the specific context and desired level of formality.
Is it better to say "as per standard protocol" or "according to standard protocol"?
Both phrases are acceptable, but "according to standard protocol" might be preferred in more formal contexts. "As per" can sometimes sound slightly less formal than "according to".
What does "standard protocol" mean?
"Standard protocol" refers to a set of established procedures or guidelines that are followed consistently in a particular field or organization. It ensures uniformity and reliability in carrying out tasks.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested